Crystal Growth & Design最新文献

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Perhalogenated Anions as Structure Directing Agents of Cationic Coordination Polymers 作为阳离子配位聚合物结构引导剂的全卤化阴离子
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-12 DOI: 10.1021/acs.cgd.4c00644
Kevin C. Lofgren, Kellii J. Fusari, Daniel G. Droege, Jeremy L. Barnett, Timothy C. Johnstone, Scott R. J. Oliver
{"title":"Perhalogenated Anions as Structure Directing Agents of Cationic Coordination Polymers","authors":"Kevin C. Lofgren, Kellii J. Fusari, Daniel G. Droege, Jeremy L. Barnett, Timothy C. Johnstone, Scott R. J. Oliver","doi":"10.1021/acs.cgd.4c00644","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00644","url":null,"abstract":"We investigate the synthesis of coordination polymers (CPs) comprising silver cations, 4,4′-bipyridine and the charge-balancing perhalogenated acetate anions trifluoroacetate (CF<sub>3</sub>COO<sup>–</sup>), trichloroacetate (CCl<sub>3</sub>COO<sup>–</sup>), tribromoacetate (CBr<sub>3</sub>COO<sup>–</sup>) or triiodoacetate (CI<sub>3</sub>COO<sup>–</sup>). The syntheses involved anion exchange using the starting CP silver 4,4′-bipyridine acetate. Multianalytical characterization was conducted using powder X-ray diffraction, single crystal X-ray diffraction, optical microscopy and thermogravimetric analysis. Our findings revealed that CPs were formed with CF<sub>3</sub>COO<sup>–</sup> or CCl<sub>3</sub>COO<sup>–</sup> as the charge-balancing anion and exhibited notable stability. In contrast, reactions with CBr<sub>3</sub>COO<sup>–</sup> and CI<sub>3</sub>COO<sup>–</sup> showed that the starting anion undergoes decomposition to bromide, iodide or triiodide before being incorporated into the resulting material. This study sheds light on the interactions between perhalogenated anions and CPs and the potential for the use of CPs in the removal of perhalogenated “forever chemicals.”","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural Landscape and Proton Conduction of Lanthanide 5-(Dihydroxyphosphoryl)isophthalates 镧系元素 5-(二羟基磷酰)间苯二甲酸盐的结构景观和质子传导
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-12 DOI: 10.1021/acs.cgd.4c00786
Inés R. Salcedo, Montse Bazaga-García, Rosario M. Pérez Colodrero, Álvaro Vílchez-Cózar, Fernando Cañamero-Cebrián, Pascual Olivera Pastor, Jan K. Zaręba, Aurelio Cabeza
{"title":"Structural Landscape and Proton Conduction of Lanthanide 5-(Dihydroxyphosphoryl)isophthalates","authors":"Inés R. Salcedo, Montse Bazaga-García, Rosario M. Pérez Colodrero, Álvaro Vílchez-Cózar, Fernando Cañamero-Cebrián, Pascual Olivera Pastor, Jan K. Zaręba, Aurelio Cabeza","doi":"10.1021/acs.cgd.4c00786","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00786","url":null,"abstract":"Metal phosphonate-carboxylate compounds represent a promising class of materials for proton conduction applications. This study investigates the structural, thermal, and proton conduction properties of three groups of lanthanide-based compounds derived from 5-(dihydroxyphosphoryl)isophthalic acid (PiPhtA). The crystal structures, solved <i>ab initio</i> from X-ray powder diffraction data, reveal that groups <b>Ln-I</b>, Ln[O<sub>3</sub>P–C<sub>6</sub>H<sub>3</sub>(COO)(COOH)(H<sub>2</sub>O)<sub>2</sub>] (Ln = La, Pr), and <b>Ln-II</b>, Ln<sub>2</sub>{[O<sub>3</sub>P–C<sub>6</sub>H<sub>3</sub>(COO)(COOH)]<sub>2</sub>(H<sub>2</sub>O)<sub>4</sub>}·2H<sub>2</sub>O (Ln = La, Pr, Eu), exhibit three-dimensional frameworks, while group <b>Ln-III</b>, Ln[O<sub>3</sub>P–C<sub>6</sub>H<sub>3</sub>(COO)(COOH)(H<sub>2</sub>O)] (Ln = Yb), adopts a layered structure with unbonded carboxylic groups oriented toward the interlayer region. All compounds feature carboxylic groups and coordinating water molecules. Impedance measurements demonstrate that these materials exhibit water-mediated proton conductivity, initially following a vehicle-type proton-transfer mechanism. Upon exposure to ammonia vapors from a 14 or 28% aqueous solution, compounds from groups <b>II</b> and <b>III</b> adsorb ammonia and water, leading to an enhancement in proton conductivity consistent with a Grotthuss-type proton-transfer mechanism. Notably, group <b>II</b> of the studied compounds undergoes the formation of a new expanded phase through the internal reaction of carboxylic groups with ammonia, coexisting with the as-synthesized phase. This postsynthetic modification results in a significant increase in proton conductivity, from approximately ∼5 × 10<sup>–6</sup> to ∼10<sup>–4</sup> S·cm<sup>–1</sup> at 80 °C and 95% relative humidity (RH), attributed to a mixed intrinsic/extrinsic contribution. Remarkably, the NH<sub>3</sub>(28%)-exposed <b>Yb-III</b> compound achieves an enhancement in proton conductivity, reaching ∼ 5 × 10<sup>–3</sup> S·cm<sup>–1</sup> at 80 °C and 95% RH, primarily through an extrinsic contribution.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on Growth Quality of GaN Deposition on Nanopillar-Patterned Substrates: Microstructure Characterization and Crystalline Quality Optimization 纳米柱图案基底上氮化镓沉积生长质量研究:显微结构表征和结晶质量优化
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-12 DOI: 10.1021/acs.cgd.4c00923
Lianxin Li, Tinghong Gao, Qian Chen, Jin Huang
{"title":"Study on Growth Quality of GaN Deposition on Nanopillar-Patterned Substrates: Microstructure Characterization and Crystalline Quality Optimization","authors":"Lianxin Li, Tinghong Gao, Qian Chen, Jin Huang","doi":"10.1021/acs.cgd.4c00923","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00923","url":null,"abstract":"The preparation of gallium nitride (GaN) film materials has significant importance in the semiconductor and thermoelectric sectors, serving as essential core materials for chips, power supply, and communication applications. The production of GaN thin films with reduced defect density has emerged as a significant and continuous subject of research. This work investigated the deposition process of GaN thin films on an aluminum nitride nanopattern substrate via molecular dynamics simulation. A comparison was made between the deposition process on the nanopatterned and unpatterned substrates. Additionally, the impact of the substrate temperature and nanopillar radius on the quality of the thin film was examined. Results demonstrate that the use of a nanopillar pattern on the substrate facilitates the acquisition of the deposited film with a larger number of wurtzite structures and a reduced presence of dislocations. In contrast to the persistent and extensive dislocations formed in the thin films on an unpatterned substrate, the dislocations present in the thin films on a patterned substrate exhibit shorter lengths and more complexity. By appropriately elevating the temperature of the substrate, it is possible to effectively decrease the complexity of the atomic structure and enhance the thin film density. The correlation between the stress and the temperature of the thin film deposited on the patterned substrate is weak. The deformation of nanopillars with a too small radius can cause the deposited atoms to move into the nanovoid, aggravating the irregularity of the thin film surface and the volume of defects. Moreover, the excessive size of the nanopillar at which the surface area of the substrate approaches that of an unpatterned substrate can increase the occurrence of dislocations in the deposited film. This observation implies that the nanovoid ratio inside the nanopillar has a substantial impact on the deposition quality of the thin film. This study focuses on the deposition of GaN films on substrates with nanopatterns at the nanoscale, assesses the impact of nanopatterning degree on the growth quality of film, and acquires data on the temperature range and structural characteristics of high-quality films exhibiting high density and few dislocations.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microfluidic Avenue to Manipulate Polycrystalline Materials: A Case Study of 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-Hexaazaisowurtzitane 操纵多晶材料的微流体途径:2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-Hexaazaisowurtzitane 的案例研究
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-12 DOI: 10.1021/acs.cgd.4c00278
Jinyu Shi, Yipeng Fei, Haoxuan Xia, Xingyi Zhou, Qiong Yu, Peng Zhu, Ruiqi Shen
{"title":"Microfluidic Avenue to Manipulate Polycrystalline Materials: A Case Study of 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-Hexaazaisowurtzitane","authors":"Jinyu Shi, Yipeng Fei, Haoxuan Xia, Xingyi Zhou, Qiong Yu, Peng Zhu, Ruiqi Shen","doi":"10.1021/acs.cgd.4c00278","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00278","url":null,"abstract":"Polymorphic transformation is of paramount importance as it significantly influences the physical, chemical, and functional properties of materials, with profound implications in fields ranging from advanced materials engineering to high-energy material science. However, there is difficulty in understanding transformation mechanisms, achieving precise control over transformation processes, and addressing the stability of polymorphs. This work sets its sights on 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20), a typical polycrystalline explosive, and innovatively embarks on the development of a control strategy for polymorphic transformation from both mechanistic and experimental perspectives by microfluidics. We delve into the microscopic transformation mechanisms from the α-form to the β-form and eventually to the ε-form, utilizing molecular dynamics simulations incorporating thermodynamic and kinetic principles. To control these transitions, a custom-engineered coaxial micromixer was developed, leading to the establishment of an advanced microfluidic system for polymorph control. The groundbreaking mechanism was validated by scrutinizing the influence of microfluidic conditions on the polymorphic transformation, facilitating a continuous and efficient transition from α-CL-20 to ε-CL-20-PBX. Notably, thermal decomposition tests provided further endorsement, confirming the superior storage safety and reliability of ε-CL-20-PBX. The findings offer an unprecedented understanding of the polymorphic transformation of explosive materials and open new avenues in the manipulation of polycrystalline materials.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Growth Characteristics and Orientation Tuning of Superconducting Thin Films of Bi2212 Based on Substrate Orientation 基于基底取向的 Bi2212 超导薄膜的生长特性和取向调谐
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-11 DOI: 10.1021/acs.cgd.4c00911
Nan Wang, Huazhe Yang, Bowen Zhang
{"title":"Growth Characteristics and Orientation Tuning of Superconducting Thin Films of Bi2212 Based on Substrate Orientation","authors":"Nan Wang, Huazhe Yang, Bowen Zhang","doi":"10.1021/acs.cgd.4c00911","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00911","url":null,"abstract":"In this paper, Bi2212 superconducting thin films were prepared on LaAlO<sub>3</sub>(100), LaAlO<sub>3</sub>(110), and LaAlO<sub>3</sub>(111) single crystals by the sol–gel method. The growth characteristics of Bi2212 superconducting films under equilibrium conditions were systematically investigated. The phase composition, morphology, orientation, and superconducting transition temperature of Bi2212 films were studied. Under the equilibrium growth conditions, Bi2212 was more easily grown along the epitaxial LaAlO<sub>3</sub>(100). It was determined by the surface energy of the substrate, and the surface energy determined the nucleation energy level of Bi2212. The orientations of LaAlO<sub>3</sub> played a significant role in the regulation of the growth orientation of Bi2212. This work lays the foundation for the device application of Bi2212 thin films prepared by the sol–gel method.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pyrene- and Benzothiadiazole-Based Mixed-Ligand D–A Metal–Organic Framework for the Enhancing Photocatalytic Aerobic Oxidation of Organic Sulfides 基于芘和苯并噻二唑混合配体的 D-A 金属有机框架用于增强有机硫化物的光催化好氧氧化作用
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-11 DOI: 10.1021/acs.cgd.4c00640
Jiaping Cao, Xianmin Guo, Jianguo Liu, Ting Hu, Mingxue Shao, Rao Bao, Huadong Guo
{"title":"Pyrene- and Benzothiadiazole-Based Mixed-Ligand D–A Metal–Organic Framework for the Enhancing Photocatalytic Aerobic Oxidation of Organic Sulfides","authors":"Jiaping Cao, Xianmin Guo, Jianguo Liu, Ting Hu, Mingxue Shao, Rao Bao, Huadong Guo","doi":"10.1021/acs.cgd.4c00640","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00640","url":null,"abstract":"Assembling donor–acceptor (D–A) systems has become an emerging strategy to develop prominent heterogeneous photocatalysts in organic transformation. Herein, by linker modification, a UiO-67-type mixed-ligand metal–organic framework (termed UiO-67-PE/BT) was fabricated with pyrene as the electron donor and benzothiadiazole as the electron acceptor. Benefiting from the ultrastability of UiO-type materials and the outstanding photoactivity of the D–A system, UiO-67-PE/BT can efficiently photocatalyze the selective oxidation of organic sulfides into sulfoxides under visible-light irradiation. The enhanced photocatalytic performance of UiO-67-PE/BT was attributed to the D–A interaction in UiO-67-PE/BT that improves the synergetic effect of photoinduced electron transfer and energy transfer processes to generate abundant reactive oxygen species (superoxide radical and single oxygen). This work provided a feasible platform for the development of the D–A system to improve the transformation of solar energy into chemical energy.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
1D to 2D Growth of NaF Crystals in Photothermo-Refractive Glasses 在光热折射玻璃中从一维到二维生长 NaF 晶体
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-11 DOI: 10.1021/acs.cgd.4c00882
Zhixiang Li, Qiuping Ren, Yuanxing Chang, Dashuang Ding, Leilei Ma, Yinsheng Xu, Shaoqian Zhang, Xianghua Zhang
{"title":"1D to 2D Growth of NaF Crystals in Photothermo-Refractive Glasses","authors":"Zhixiang Li, Qiuping Ren, Yuanxing Chang, Dashuang Ding, Leilei Ma, Yinsheng Xu, Shaoqian Zhang, Xianghua Zhang","doi":"10.1021/acs.cgd.4c00882","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00882","url":null,"abstract":"The precipitation of NaF crystals with a low refractive index only in the UV exposure region is essential to obtain high refractive index change in photothermo-refractive (PTR) glass for producing high-performance volume Bragg gratings (VBGs). However, the precision control of the growth of NaF crystals in the UV exposure region of PTR glass remains challenging. In this work, the effect of Al<sub>2</sub>O<sub>3</sub> on the crystallization behavior of NaF crystals in PTR glass was investigated using the nonisothermal crystallization kinetic method. After photothermal-induced nucleation, the crystallization activation energy (<i>E</i><sub>a</sub>) of PTR glass decreased first and then increased with the rise in the Al<sub>2</sub>O<sub>3</sub> content. The appropriate amount of Al<sub>2</sub>O<sub>3</sub> (4 mol %) is helpful for reducing the <i>E</i><sub>a</sub> and promoting the formation of NaF crystals. The crystal growth index (<i>n</i>) and crystal growth dimension (<i>m</i>) suggest that the crystallization behavior of NaF crystals was photothermally induced nucleation and crystallization of 1D growth. The increasing trend of the <i>m</i> values indicates that the crystals tend to transit from 1D to 2D growth with the increase in Al<sub>2</sub>O<sub>3</sub> content. When Al<sub>2</sub>O<sub>3</sub> is 6 mol %, <i>n</i> equals <i>m</i> + 1, which implies the NaF crystals crystallize spontaneously rather than growing on the Ag nuclei. The crystals observed using scanning electron microscopy images showed that irregular precursors appeared first and then grew into needle-like crystals. When the NaF crystals grew sufficiently long, they transformed into lamellar crystals. This work elucidates the crystallization process of NaF crystals in PTR glass and provides guidance for the production of high-performance VBGs.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insight into Tendentious Multisite Colonization, Site Environment Modulation, and Energy Transfer of Steady Ba2CaB2Si4O14: Ce/Tb/Sm/Sr/Na toward nUV-Pumped wLED Application 洞察稳定的 Ba2CaB2Si4O14:Ce/Tb/Sm/Sr/Na 的倾向性多位点定殖、位点环境调制和能量转移,实现 nUV 泵浦 wLED 应用
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-11 DOI: 10.1021/acs.cgd.4c00931
Pengju Xia, Yifeng Lei, Wanyuan Li, Kaiting Wu, Chengyu Ni, Man Xu, Wubin Dai
{"title":"Insight into Tendentious Multisite Colonization, Site Environment Modulation, and Energy Transfer of Steady Ba2CaB2Si4O14: Ce/Tb/Sm/Sr/Na toward nUV-Pumped wLED Application","authors":"Pengju Xia, Yifeng Lei, Wanyuan Li, Kaiting Wu, Chengyu Ni, Man Xu, Wubin Dai","doi":"10.1021/acs.cgd.4c00931","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00931","url":null,"abstract":"With the growing public awareness of protecting vision and prevention of hazardous effects, there is much-needed research on a “healthy” full visible spectrum under near-ultraviolet (nUV) excitation in phosphor-converted white light-emitting diodes (pc-wLEDs) to fill the “cyan gap” and avoid employing a blue LED chip. Herein, a novel series of borosilicates Ba<sub>2</sub>CaB<sub>2</sub>Si<sub>4</sub>O<sub>14</sub> (BCBS): Ce<sup>3+</sup>/Tb<sup>3+</sup>/Sm<sup>3+</sup>/Sr<sup>2+</sup>/Na<sup>+</sup> phosphors, presenting color-tunable photoluminescence (PL), high quantum yield (QY), and thermal stability, were designed and synthesized via a facile solid-phase reaction. The Rietveld analyses, density functional theory (DFT) simulations, and theoretical calculations of bond energy together imply the site occupations of Ce/Tb/Sm on Ba<sup>2+</sup>/Ca<sup>2+</sup> sites with a preferred location on Ca<sup>2+</sup> over the Ba<sup>2+</sup> site. The broad/bright cyan-PL from BCBS: Ce under nUV excitation is associated with the allowed f–d transitions of Ce<sup>3+</sup> and dual-site occupancies. The forbidden f–f transitions of both the green-PL of Tb and the red-PL of Sm were insensitive to the site environment and helpful to PL color regulation. The cascading Ce → Tb → Sm energy transfer is confirmed, where Tb is regarded as an energy transfer (ET) bridge to avoid the metal–metal charge transfer (MMCT) effect. The introduction of Na<sup>+</sup> as both flux and charge compensator is for the sake of decreasing defects from heterovalent substitutions and regulating morphology. Further incorporation of Sr<sup>2+</sup> is to modulate the lattice environments of dopants for controlling the shift of PL. Finally, as a proof-of-concept implement, a pc-wLED assembled by BCBS: Ce/Tb/Sm/Sr/Na and an nUV LED chip via a remote “capping” packaging strategy show attractive performance.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Room Temperature Synthesis of Tellurium by Solution Atomic Layer Deposition 溶液原子层沉积法室温合成碲
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-10 DOI: 10.1021/acs.cgd.4c00987
Jessica Willkommen, Amin Bahrami, Nicolas Perez Rodriguez, Angelika Wrzesinska-Lashkova, Yana Vaynzof, Kornelius Nielsch, Sebastian Lehmann
{"title":"Room Temperature Synthesis of Tellurium by Solution Atomic Layer Deposition","authors":"Jessica Willkommen, Amin Bahrami, Nicolas Perez Rodriguez, Angelika Wrzesinska-Lashkova, Yana Vaynzof, Kornelius Nielsch, Sebastian Lehmann","doi":"10.1021/acs.cgd.4c00987","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00987","url":null,"abstract":"This study demonstrates the deposition of tellurium (Te) on silicon/silicon nitride substrates using solution atomic layer deposition (sALD) at ambient temperature. The process employs tellurium tetrachloride (TeCl<sub>4</sub>) and bis(triethylsilyl)-telluride ((TES)<sub>2</sub>Te) as precursors, with toluene as the solvent. Growth parameters were optimized through systematic variation of the pulse and purge times. Morphological characterization via scanning and transmission electron microscopy revealed needle-like crystallites, while X-ray diffractometry confirmed the crystalline nature of the deposited Te. Increasing the number of deposition cycles resulted in larger Te crystallites and enhanced substrate surface coverage. A thin amorphous carbon shell surrounding the crystallites and carbon inclusions was observed, likely originating from the organic solvent. X-ray photoemission spectroscopy analysis indicated high-purity Te films with minimal surface oxidation. The small chlorine signal suggested a near-complete precursor reaction and the efficient purging of byproducts. This novel sALD approach presents a promising method for depositing Te on various surfaces under mild conditions.","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variation in the Sorption Properties of a Pair of Highly Flexible, Isostructural MOFs Exhibiting Single-Crystal-to-Single-Crystal Transformations Rarely Observed in MOFs Based on a Linear Co3/Mn3 Trinuclear Cluster 基于线性 Co3/Mn3 三核簇的 MOFs 中罕见的单晶到单晶转变:一对高柔性等结构 MOFs 的吸附特性变化
IF 3.8 2区 化学
Crystal Growth & Design Pub Date : 2024-09-10 DOI: 10.1021/acs.cgd.4c00884
Kedibone G. Muguru, Wilson Mogodi, Clive L. Oliver
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