Progress in Crystal Growth and Characterization of Materials最新文献

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On the multifaceted journey for the invention of epitaxial quantum dots 外延量子点的发明历程
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2023-10-19 DOI: 10.1016/j.pcrysgrow.2023.100603
Emanuele Pelucchi
{"title":"On the multifaceted journey for the invention of epitaxial quantum dots","authors":"Emanuele Pelucchi","doi":"10.1016/j.pcrysgrow.2023.100603","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2023.100603","url":null,"abstract":"<div><p><span><span>Epitaxial semiconductor quantum dots have been, in the last 40 years or so, at the center of the research effort of a large community. The focus being on “semiconductor </span>physics and devices”, in view of the broad applications and potential, e.g., for efficient temperature insensitive lasers at telecom wavelengths, or as “artificial atoms” for </span>quantum information processing. Our manuscript aims at addressing, with an historical perspective, the specifics of (III-V) epitaxial quantum dot early developments (largely for light emitting) and subsequent years. We will not only highlight the variety of epitaxial structures and methods, but also, intentionally glancing a didactic approach, discuss aspects that are, in general, little acknowledged or debated in the present literature. The analyses will also naturally bring us to examine some of current challenges, in a field which, despite sensational achievements, is, remarkably, still far from being mature in its developments and applications.</p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"69 2","pages":"Article 100603"},"PeriodicalIF":5.1,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92043242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation, growth mechanism, and application of Mg2B2O5 whiskers: A review Mg2B2O5晶须的制备、生长机理及应用综述
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2023-09-20 DOI: 10.1016/j.pcrysgrow.2023.100602
Zhaoyang Liu , Shuxing Wang , Songyang Pan , Kexin Cheng , Ruinan Zhang , Xiangnan Wang , Tianpeng Wen , Lei Yuan , Jingkun Yu
{"title":"Preparation, growth mechanism, and application of Mg2B2O5 whiskers: A review","authors":"Zhaoyang Liu ,&nbsp;Shuxing Wang ,&nbsp;Songyang Pan ,&nbsp;Kexin Cheng ,&nbsp;Ruinan Zhang ,&nbsp;Xiangnan Wang ,&nbsp;Tianpeng Wen ,&nbsp;Lei Yuan ,&nbsp;Jingkun Yu","doi":"10.1016/j.pcrysgrow.2023.100602","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2023.100602","url":null,"abstract":"<div><p>Magnesium borate (Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub>) whiskers are highly regarded as a promising inorganic reinforcing material due to their availability, ease of preparation, and remarkable reinforcing effect. The main objective of this article is to examine the properties of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers and to encourage researchers to utilize them, thereby enhancing the characteristics of various composites in a cost–effective manner. Six production methods of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers are addressed, and based on these methods, different growth mechanisms of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers, including liquid–solid, solid–liquid–solid, vapor–solid, and vapor–liquid–solid mechanisms, are analyzed and summarized. As reinforcing materials, Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers are widely employed in alloys and polymers, effectively enhancing the physical and chemical properties of the resulting whisker–reinforced composites, including mechanical, friction and wear resistance, and flame retardancy properties. Furthermore, the impact of surface modification of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers on the properties of composites was explored. The cost–effectiveness, favorable properties, and wide availability of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers make them excellent potential materials for numerous applications, and the article provides an analysis and forecasts the future development direction and prospects of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> whiskers.</p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"69 2","pages":"Article 100602"},"PeriodicalIF":5.1,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0960897423000098/pdfft?md5=107639af1a231d19e364f5a1162ffbfd&pid=1-s2.0-S0960897423000098-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91957800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chronological evaluation of the synthesis techniques of nanocrystalline Fe73.5Cu1Nb3Si13.5B9 soft magnetic alloy 纳米晶Fe73.5Cu1Nb3Si13.5B9软磁合金合成技术的时间顺序评价
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2023-09-20 DOI: 10.1016/j.pcrysgrow.2023.100601
Mohammad Nur-E-Alam , Arvil Bhattacharjee , Deba Prasad Paul , M.A. Hakim , Mohammad Aminul Islam , Tiong S. Kiong , Nowshad Amin , Mohammad Rashed Iqbal Faruque , Mayeen Uddin Khandaker
{"title":"Chronological evaluation of the synthesis techniques of nanocrystalline Fe73.5Cu1Nb3Si13.5B9 soft magnetic alloy","authors":"Mohammad Nur-E-Alam ,&nbsp;Arvil Bhattacharjee ,&nbsp;Deba Prasad Paul ,&nbsp;M.A. Hakim ,&nbsp;Mohammad Aminul Islam ,&nbsp;Tiong S. Kiong ,&nbsp;Nowshad Amin ,&nbsp;Mohammad Rashed Iqbal Faruque ,&nbsp;Mayeen Uddin Khandaker","doi":"10.1016/j.pcrysgrow.2023.100601","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2023.100601","url":null,"abstract":"<div><p>In this review article, we focus on the synthesis process and properties of Fe-Si-B-based soft magnetic alloys<span><span><span> that exhibit superior magnetic properties. The process parameters related to the synthesis and characterization of these types of alloys are studied widely and investigated the properties observed in </span>nanocrystalline Cu and Nb-dopped Fe-Si-B-based magnetic alloys. The properties of these materials are an exceptional combination of high permeability, high </span>Curie temperature<span>, low core losses and anisotropy energy, and near zero effective magnetostriction suitable for various applications such as magnetic field sensors, sensors for non-destructive evaluation of materials, motors, transformer cores, electric vehicles, etc. A significant number of research works have been conducted so far and more research is continued to improve their properties in various ways including engineering of materials composition, optimization of synthesis processes, and parameters for easy integration into modern devices. This review article aims to demonstrate a comparison study of the properties of Fe-Si-B- based soft magnetic alloys and to provide the latest updates on their developments toward tailoring the extrinsic (coercivity, and permeability) and intrinsic (Curie temperature and saturation magnetization) properties for conquering the subsequent area of applications.</span></span></p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"69 2","pages":"Article 100601"},"PeriodicalIF":5.1,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24849393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Silica-carbonate biomorphs of alkaline earth metals: Relationship with minerals since the Precambrian era 碱土金属的硅碳酸盐生物形态:与前寒武纪以来矿物的关系
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2023-02-01 DOI: 10.1016/j.pcrysgrow.2023.100594
Marcelino Antonio Zúñiga-Estrada, Erick Alfredo Zúñiga-Estrada, Mayra Cuéllar-Cruz
{"title":"Silica-carbonate biomorphs of alkaline earth metals: Relationship with minerals since the Precambrian era","authors":"Marcelino Antonio Zúñiga-Estrada,&nbsp;Erick Alfredo Zúñiga-Estrada,&nbsp;Mayra Cuéllar-Cruz","doi":"10.1016/j.pcrysgrow.2023.100594","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2023.100594","url":null,"abstract":"<div><p>Under alkaline conditions, silica forms self-assembled mineral compounds which are similar in morphology, nanostructure, and texture to the hybrid biomineral structures that, millions of years ago gave to life. In this review we propose that, during the earliest history of this planet, there was a geochemical scenario that led to large-scale production of both simple and complex organic compounds, many of which were important for prebiotic chemistry. The production was based on a high concentration of silica and high pH. Two main factors affected this process: a) a source of simple carbon molecules that were either synthesized abiotically from reactions associated with serpentinization, or carried by meteorites and produced by their impact on Earth, and b) the formation of self-organized silica-metal mineral compounds that catalyzed the condensation of single molecules in a reduced methane-rich atmosphere. We discuss the plausibility of this geochemical scenario and its catalytic properties and the transition towards a slightly alkaline to Neutral Ocean.</p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"69 1","pages":"Article 100594"},"PeriodicalIF":5.1,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1559677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Macrosteps dynamics and the growth of crystals and epitaxial layers 宏观台阶动力学与晶体和外延层的生长
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2022-11-01 DOI: 10.1016/j.pcrysgrow.2022.100581
Stanislaw Krukowski, Konrad Sakowski, Paweł Strak, Paweł Kempisty, Jacek Piechota, Izabella Grzegory
{"title":"Macrosteps dynamics and the growth of crystals and epitaxial layers","authors":"Stanislaw Krukowski,&nbsp;Konrad Sakowski,&nbsp;Paweł Strak,&nbsp;Paweł Kempisty,&nbsp;Jacek Piechota,&nbsp;Izabella Grzegory","doi":"10.1016/j.pcrysgrow.2022.100581","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2022.100581","url":null,"abstract":"<div><p>Step pattern stability of the vicinal surfaces during growth was analyzed using various surface kinetics models. It was shown that standard analysis of the vicinal surfaces provides no indication on the possible step coalescence and therefore could not be used to elucidate macrostep creation during growth. A scenario of the instability, leading go macrostep creation, was based on the dynamics of the step train, i.e. the step structure consisting of the high (train) and low (inter-train) density of the steps. The critical is step motion at the rear of the train which potentially leads to the step coalescence i.e. creation of the double and multiple step. The result of the analysis shows that the decisive factor for the step coalescence is the step density ratio in and out of the train. The ratio lower than 2 prevents double step formation irrespective of the kinetics. For higher ratio the coalesce depends on step kinetics: fast incorporation from lower terrace stabilizes the single steps, fast incorporation from upper leads to step coalescence. The double step is slower than the single steps, so the single steps behind catch up creating multistep and finally macrostep structure. The final surface structure consists of the macrosteps and superterraces, i.e. relatively flat vicinal segments. The macrostep alimentation from lower superterrace leads to emission of the single steps which move forward. Thus the single step motion is dominant crystal growth mode in the presence of the macrosteps. These steps finally are absorbed by the next macrostep. The absorption and emission of single steps sustain the macrostep existence, i.e. the macrostep fate is determined the single step dynamics. The condition for single step emission was derived. In addition, the macrosteps are prone to creation of the overhangs which results from surface dynamics coupling to impingement from the mother phase. The angular preferential access of the bulk material to the macrostep edge, leads to the overhang instability and creation of inclusions and dislocations.</p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"68 4","pages":"Article 100581"},"PeriodicalIF":5.1,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2578950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances on potential-driven growth of metal crystals from ionic liquids 离子液体中金属晶体电位驱动生长的研究进展
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2022-11-01 DOI: 10.1016/j.pcrysgrow.2022.100580
Md. Mominul Islam, Saika Ahmed, Muhammed Shah Miran, Md. Abu Bin Hasan Susan
{"title":"Advances on potential-driven growth of metal crystals from ionic liquids","authors":"Md. Mominul Islam,&nbsp;Saika Ahmed,&nbsp;Muhammed Shah Miran,&nbsp;Md. Abu Bin Hasan Susan","doi":"10.1016/j.pcrysgrow.2022.100580","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2022.100580","url":null,"abstract":"<div><p><span>This article highlights the electrodeposition of metals, in crystalline or </span>amorphous<span><span> form, that are monentous in the present era of science and technology. Available literature related to nucleation and growth of metal crystals has been reviewed to gain insight into the mechanism and kinetics. The progress made in the </span>electrodeposition<span><span> technique, using an ionic liquid (IL) medium, has been detailed for selected metals using different ILs for achieving the controlled growth mechanism driven by </span>electrochemical potential. Theoretical models for nucleation and growth of crystals by electrodeposition have been explained and the effect of crystallization overpotential on the growth of crystal growth has been discussed. Finally, the factors affecting the growth process and the mechanism have been identified and critically analyzed based on the available literature, fundamental knowledge-base, chemistry of ILs, and electrodeposition.</span></span></p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"68 4","pages":"Article 100580"},"PeriodicalIF":5.1,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3081422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Theoretical and Practical Studies on Effects of External Electrostatic Electric Field on Nucleation and Growth Kinetics of Protein Crystals 外加静电场对蛋白质晶体成核和生长动力学影响的理论与实践研究
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2022-08-01 DOI: 10.1016/j.pcrysgrow.2022.100568
Haruhiko Koizumi , Satoshi Uda
{"title":"Theoretical and Practical Studies on Effects of External Electrostatic Electric Field on Nucleation and Growth Kinetics of Protein Crystals","authors":"Haruhiko Koizumi ,&nbsp;Satoshi Uda","doi":"10.1016/j.pcrysgrow.2022.100568","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2022.100568","url":null,"abstract":"<div><p>The crystallization technique where an electric field is applied is an extremely powerful tool to control the crystallization processes of various materials. In particular, the method with application of an external electrostatic electric field can have a significant effect on the phase equilibrium of the liquid and solid phases. This review demonstrates that the crystallization processes of proteins are significantly impacted by the application of an external electrostatic electric field: (1) Control of both the increase and decrease in the nucleation rate can be achieved by changing the applied frequency of the external electrostatic electric field. (2) The effect of the external electrostatic electric field on the nucleation rate can be controlled by regulating the thickness of the electric double layer (EDL) formed at the interface. (3) The quality of the grown crystals can be improved by an increase in the step free energy under application of an external electrostatic electric field at 1 MHz. The effect of the external electrostatic electric field on nucleation and growth kinetics during crystal growth of proteins is also discussed based on a thermodynamic perspective.</p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"68 3","pages":"Article 100568"},"PeriodicalIF":5.1,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1559678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Thermal stress relaxation phenomenon through forming the interstitial region in CZ silicon pulled with rapid and slow cooling heat shields 热应力松弛现象通过形成间隙区域的CZ硅拉的快速和缓慢冷却隔热
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2022-08-01 DOI: 10.1016/j.pcrysgrow.2022.100579
Takao Abe
{"title":"Thermal stress relaxation phenomenon through forming the interstitial region in CZ silicon pulled with rapid and slow cooling heat shields","authors":"Takao Abe","doi":"10.1016/j.pcrysgrow.2022.100579","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2022.100579","url":null,"abstract":"&lt;div&gt;&lt;p&gt;&lt;span&gt;&lt;span&gt;This review article aims to clarify a mechanism of point defects formation in a CZ Si crystal through an experimental arrangement using the two kinds of heat shields with different slow-pulling periods. Point defects in a melt grown &lt;/span&gt;silicon&lt;span&gt; crystal have been studied for a long time. The author and his co-researchers have reported about “Mechanism for generating interstitial atoms by thermal stress during silicon crystal growth” [in Progress in Crystal Growth and Characterization of Materials, &lt;/span&gt;&lt;/span&gt;&lt;strong&gt;66&lt;/strong&gt;&lt;span&gt; (2019) 36-46]. The experimental arrangement includes constant growing, changing pulling rate and finally detaching crystals from the melt. The two types of heat shields were used to change the cooling history of the grown crystals, for changing a temperature gradient at a bulk part in the grown crystal, &lt;/span&gt;&lt;em&gt;G&lt;/em&gt;&lt;sub&gt;b&lt;/sub&gt;. In order to prove that the formation of an interstitial region or a boundary of vacancies (Vs)/interstitials (Is) in a silicon crystal is a phenomenon of relaxing thermal stress, the author explains that a &lt;em&gt;G&lt;/em&gt;&lt;sub&gt;b&lt;/sub&gt; in a crystal forms thermal stress and causes some silicon atoms at lattice positions to move to the closest interstitial sites to relax the stress. The author defines a new term of metastable interstitial atom, I’, or I's as the plural of I’. The I’ coexists with the metastable vacancy V’ from where the I’ is displaced. The plural of V’ is defined to be V's. The author defines the above state to be a complex (I’+ V’), or (I ’+ V’)s as the plural of (I’+ V’), and explains that the (I’+ V’) s convert to Is and form the Is region. The (I’+ V’) is considered as the Frenkel pair-like complex.&lt;/p&gt;&lt;p&gt;The crystals were firstly pulled with a high pulling rate, and the pulling rate was consequently decreased to a slow one. Then the crystals were pulled with the slow constant pulling rate for different periods making different cooling processes. Finally, the grown crystals were detached from the melt and cooled rapidly. Characterization of defects, such as Vs, Is, and defect-free (D-F) regions were identified in X-ray topographs (XAOP(s)). Wafer lifetime mapping (WLTM(s)) allows confirming dislocation loop (DL) regions. The results show that the Is are generated depending on the pulling period of the slow pulling and the shapes of the heat shields. The Is and DL regions are formed in a region at temperatures near the melting point. The Is form an Is region through a defect-free (D-F) region, forming the Vs/Is boundary. When the thermal stress weakens, the DL region changes to the Is region; the Is region changes to the D-F region; and the D-F region changes to the Vs region. Temperature gradient distribution is induced toward various directions at different parts of the growing crystal depending on the different slow-pulling periods. The temperature gradient, &lt;em&gt;G&lt;/em&gt;&lt;sub&gt;b&lt;/sub&gt;, includes a temperature gradient from the cooled region shaded","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"68 3","pages":"Article 100579"},"PeriodicalIF":5.1,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3398756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Growth, structure, electrical and optical properties of transition metal chalcogenide crystals synthesized by improved chemical vapor transport technique for semiconductor technologies 利用改进的半导体化学气相输运技术合成的过渡金属硫族化物晶体的生长、结构、电学和光学性质
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2022-08-01 DOI: 10.1016/j.pcrysgrow.2022.100578
Abhay Dasadia , Vidhi Bhavsar
{"title":"Growth, structure, electrical and optical properties of transition metal chalcogenide crystals synthesized by improved chemical vapor transport technique for semiconductor technologies","authors":"Abhay Dasadia ,&nbsp;Vidhi Bhavsar","doi":"10.1016/j.pcrysgrow.2022.100578","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2022.100578","url":null,"abstract":"<div><p><span><span>Low dimensional structures, including bulk crystals, thin films<span>, nanowires and nanotubes<span>, have received remarkable attention due to their novel functionality and potential applications in various areas of optics<span>, electronics, photonics, and sensing devices and </span></span></span></span>photovoltaic<span> field. Recently, remarkable progress and modification have been achieved in the synthesis process of crystalline material by vapor transport technique. In this review, we introduce an improved concept of the closed tube Chemical Vapor Transport (CVT) technique for the single crystal growth of ZrSTe, TiSTe and TiSeTe. A modified reverse temperature profile has reported the growth of ZrSTe, TiSTe and TiSeTe results show the good crystalline quality of synthesized materials. The single-crystal X-ray diffraction data reveals all three samples have trigonal unit cell structure with a space group of P31. The Semiconducting behavior of grown crystals of ZrSTe, TiSTe and TiSeTe was verified by two probe resistivity measurements, </span></span>Hall Effect<span><span> measurements and optical absorption at room temperature in the spectral range of 200 nm - 2200 nm. In this review, we highlight the recent progress in the transition of metal </span>chalcogenides<span><span> for their advanced application in solar energy conversion<span>, thin-film electronics, optoelectronic devices and </span></span>quantum communication devices. Moreover, different experimental challenges within the described growth technique are probed. Additionally, a survey was done for the possible enhancement of Transition Metal Chalcogenide (TMC) crystalline materials grown by the Chemical Vapor Transport technique based on various growth parameters.</span></span></p></div>","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"68 3","pages":"Article 100578"},"PeriodicalIF":5.1,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1741704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
On the Vitality of the Classical Theory of Crystal Nucleation; Crystal Nucleation in Pure Own Melt; Atmospheric Ice and Snow; Ice in Frozen Foods 论经典晶体成核理论的生命力纯自身熔体结晶成核大气冰雪;冷冻食品中的冰
IF 5.1 2区 材料科学
Progress in Crystal Growth and Characterization of Materials Pub Date : 2022-05-01 DOI: 10.1016/j.pcrysgrow.2022.100567
Christo N. Nanev
{"title":"On the Vitality of the Classical Theory of Crystal Nucleation; Crystal Nucleation in Pure Own Melt; Atmospheric Ice and Snow; Ice in Frozen Foods","authors":"Christo N. Nanev","doi":"10.1016/j.pcrysgrow.2022.100567","DOIUrl":"https://doi.org/10.1016/j.pcrysgrow.2022.100567","url":null,"abstract":"&lt;div&gt;&lt;p&gt;&lt;span&gt;The main reason for the longevity of the Classical Nucleation Theory (CNT) is its firm thermodynamic basis; reviewing the discussion about the molecular-scale mechanism of crystal nucleation from solutions, and especially the mechanism of protein crystal nucleation, we note that the diverse nucleation pathways across the metastable phase cannot contradict the thermodynamic conclusions of the CNT. In this review paper, revisiting the basic postulates of CNT, we argue that not only the energy barrier for crystal nucleation but the entire dependence of Gibbs’ thermodynamic potential on the crystal size is worth interpreting. In doing so, two supplementations to CNT have been elaborated. The first one concerns the theoretical method employing Equilibration between the Bond energy (i.e., the intra-crystalline cohesive energy which maintains the integrity of a crystalline cluster), and the surface Destructive Energy (tending to tear-up the crystal) - abbreviated EBDE. Second, we show that the dependence of the Gibbs’ thermodynamic potential on the crystal size determines not only the birth, but also the initial growth (or dissolution during Ostwald ripening) of the just born nuclei of the new phase; this is predicted in the negative branch of the said dependence. Initially, EBDE was used for explaining crystal nucleation from solutions, but most recently, this method was redefined for considering crystal nucleation in melts. The purposively redefined EBDE was applied for considering ice nucleation, which is an important case of spontaneous melt crystallization in nature - the quantitative consideration of the ice crystal nucleation is needed for better understanding of atmospheric processes, such as snowfall, white frost, sleet, hail, and ice fog. By focusing on the action of ice nucleating particles (INPs), which engender heterogeneous nucleation of ice, the snowfall is elucidated in a new way - ice nucleation in the atmosphere is considered as a two-step process, the first one being vapor &lt;/span&gt;condensation in liquid droplets, and the second one - water freezing. Also, ice nucleation in frozen foods is re-considered applying EBDE. (It is known that freezing ensures a high-quality product and long shelf life of a wide range of food products, such as fish, meat, vegetables, tropical fruits, coffee, flavor essence, etc.) And because numbers and sizes of ice crystals are decisive for the degree of deterioration of food quality due to freezing, the mean sizes of the ice crystals (which depend on their number) are considered in a quantitative manner. Also, another consideration concerns ice crystal nucleation and growth occurring by freeze concentration of liquid foods. Although aimed at reviewing fundamental aspects of crystal nucleation, it is to be hoped that some results of the considerations in this paper may also be beneficial for practical applications; suggestions in this respect are mentioned throughout the paper. For instance, the ","PeriodicalId":409,"journal":{"name":"Progress in Crystal Growth and Characterization of Materials","volume":"68 2","pages":"Article 100567"},"PeriodicalIF":5.1,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1559679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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