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Chalcogenide Letters最新文献

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Synthesis and optical properties of the glassy compound As0.63S2.70Sb1.37Te0.30 玻璃状化合物As0.63S2.70Sb1.37Te0.30的合成及光学性质
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-05 DOI: 10.15251/cl.2023.205.387
M. Iovu, I. Culeac, V. Verlan, O. Bordian, M. Enăchescu, A. Popescu, D. Savastru, A. Lazar
{"title":"Synthesis and optical properties of the glassy compound As0.63S2.70Sb1.37Te0.30","authors":"M. Iovu, I. Culeac, V. Verlan, O. Bordian, M. Enăchescu, A. Popescu, D. Savastru, A. Lazar","doi":"10.15251/cl.2023.205.387","DOIUrl":"https://doi.org/10.15251/cl.2023.205.387","url":null,"abstract":"The amorphous calcogenide semiconductor As0.63S2.70Sb1.37Te0.30 was synthesized and thin films based on it were obtained. XRD and optical images investigations showed the amorphous and homogeneous nature of the samples. The optical transmission spectrum in the UV-Vis range of As0.63S2.70Sb1.37Te0.30 thin films shows good transparency in the spectral range 0.7-3.5 µm with a single absorption threshold at 2.05 eV and with refractive index in infrared 2.3. The irradiation of films with light leads to a parallel shift of the transmission spectrum to the IR range. The materials with As0.63S2.70Sb1.37Te0.30 composition have high optical transparency have high optical transparency that make they promises for applications in holographic memory devices, optical amplitude and phase recorder, optical processing units and others.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45556194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Fabrication and investigation of zinc telluride thin films 碲化锌薄膜的制备与研究
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-01 DOI: 10.15251/cl.2023.207.477
R. H. Athab, B. H. Hussein
{"title":"Fabrication and investigation of zinc telluride thin films","authors":"R. H. Athab, B. H. Hussein","doi":"10.15251/cl.2023.207.477","DOIUrl":"https://doi.org/10.15251/cl.2023.207.477","url":null,"abstract":"Zinc Telluride ZnTe alloys and thin film have been fabricated and deposited on glass substrates by thermal evaporation method which may be a suitable window layer of zinc telluride with different annealing temperatures (373 and473) K for 60 minutes in vacuum. Deposited thin films with thickness 100 nm was characteristic by using X-ray diffraction XRD to know structures, Atomic Force Microscopy (AFM) to evaluate surface topology, morphology. It was found out that the vacuum annealing improves on thin ZnTe films structure and surface morphology. Structural analysis reveals that ZnTe films have zinc blende structure of cubic phase with (111) preferred reflection and grain size is enhanced from 8.6 to 16.7 nm with annealing. Optical properties where optical bandgap energy values slightly decreased (2.3-2.2) eV as the annealing temperatures.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42623286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Structure and electronic properties of thin Ge2Sb2Te5 films produced by DC ion-plasma spattering 直流离子等离子溅射制备Ge2Sb2Te5薄膜的结构和电子性能
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-01 DOI: 10.15251/cl.2023.207.487
S. Sultanbekov, O. Prikhodko, N. Almas
{"title":"Structure and electronic properties of thin Ge2Sb2Te5 films produced by DC ion-plasma spattering","authors":"S. Sultanbekov, O. Prikhodko, N. Almas","doi":"10.15251/cl.2023.207.487","DOIUrl":"https://doi.org/10.15251/cl.2023.207.487","url":null,"abstract":"The optical properties of Ge2Sb2Te5 thin films were studied as a function of thickness. An increase in optical band gap with decreasing film thickness has been observed. The current– voltage characteristics measured in Ge2Sb2Te5 thin films in the current mode are studied. A decrease in switching time and threshold voltage with decreasing film thickness is established.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45060182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Optical and magnetic characteristics of BaTi1-xCoxO3: A first-principles study BaTi1-xCoxO3的光学和磁特性:第一性原理研究
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-01 DOI: 10.15251/cl.2023.207.459
M. Butt, S. Saleem, F. Al-Harbi, S. Atta, M. Ishfaq, F. S. Al Juman, M. Yaseen
{"title":"Optical and magnetic characteristics of BaTi1-xCoxO3: A first-principles study","authors":"M. Butt, S. Saleem, F. Al-Harbi, S. Atta, M. Ishfaq, F. S. Al Juman, M. Yaseen","doi":"10.15251/cl.2023.207.459","DOIUrl":"https://doi.org/10.15251/cl.2023.207.459","url":null,"abstract":"The full potential linearized augmented plane wave (FP-LAPW) approach based on the density functional theory (DFT) is employed to know the effect of Co doping on the electronic, optical, and magnetic characteristics of BaTi1-xCoxO3 at x= 8.33%, 16.66%, 25%, and 50%. The computed spin-polarized electronic band structure (BS) and the density of states (DOS) elucidate that the BaTi1-xCoxO3 compound has a ferromagnetic semiconductor behavior at all doping concentrations. The results indicate that the magnetic moment in BaTi1-xCoxO3 is found due to the p-d hybrid orbitals of Co. Moreover, the optical features of the Co-doped BTO compound are evaluated by analyzing the refractive index, reflectivity, absorption coefficient, optical conductivity, and dielectric constant under different concentrations. The outcomes revealed that the BaTi1-xCoxO3 compound is a good candidate for spintronics and optoelectronic applications.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42320382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Investigating the optical and electrical characteristics of As60Cu40-xSex thin films As60Cu40xSex薄膜的光电特性研究
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-01 DOI: 10.15251/cl.2023.207.449
J. S. Mohammed, F. K. Nsaif, Y. M. Jawad, K. Jasim, A. H. Al Dulaimi
{"title":"Investigating the optical and electrical characteristics of As60Cu40-xSex thin films","authors":"J. S. Mohammed, F. K. Nsaif, Y. M. Jawad, K. Jasim, A. H. Al Dulaimi","doi":"10.15251/cl.2023.207.449","DOIUrl":"https://doi.org/10.15251/cl.2023.207.449","url":null,"abstract":"In this work, As60Cu40-xSex thin films were synthesized, and the pulsed laser deposition method was used to study the effected partial replacement of copper with selenium. The electrical characteristics and optical characteristics, as indicated by the absorbance and transmittance as a function of wavelength were calculated. Additionally, the energy gap was computed. The electrical conductivity of the DC in the various conduction zones was calculated by measuring the current and voltage as a function of temperature. Additionally, the mathematical equations are used to compute the energy constants, electron hopping distance, tail width, pre-exponential factor, and density of the energy states in variation zones (densities of the energetic extended states N(Eext), localize N(Eloc) and at the Fermi states N(Ef)). The acquired data also demonstrated that the selenium concentration obviously had an impact on the electrical conduction mechanics, energy states, and the level of randomization.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41771650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
(Z)-2-(pyrrolidin-2-ylidene) thiourea based nickel (II) complex as a single source precursor for the synthesis of NiS nanoparticles and thin films (Z)-2-(吡咯烷-2-酰基)硫脲基镍(II)配合物作为单源前驱体用于合成NiS纳米颗粒和薄膜
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-01 DOI: 10.15251/cl.2023.207.497
A. M. Jawore, T. Xaba, M. Moloto
{"title":"(Z)-2-(pyrrolidin-2-ylidene) thiourea based nickel (II) complex as a single source precursor for the synthesis of NiS nanoparticles and thin films","authors":"A. M. Jawore, T. Xaba, M. Moloto","doi":"10.15251/cl.2023.207.497","DOIUrl":"https://doi.org/10.15251/cl.2023.207.497","url":null,"abstract":"Nickel sulfides nanocrystals may be regarded as promising of materials in different research areas such as catalysts, solar cells, and electrode-materials. (Z)-2-(pyrrolidin-2-ylidene) thiourea ligand and (Z)-2-(pyrrolidin-2-ylidene) thiourea based nickel (II) complex have been prepared and utilized as single source molecular precursor for the synthesis of nickel sulfide nanoparticles and thin films. The effect of temperature was studies during the synthetic processes. The synthesized nanomaterials were characterized with various instruments. UV-Vis spectroscopy results of the nanoparticles were red shifting when the reaction temperature was increased whereas the blue shift was observed when the temperature was elevated during the preparation of the NiS thin films with the optical band gap energies ranging from 2.79 eV - 3.56 eV. All the XRD patterns for the NiS thin films confirm the predominance of pure hexagonal phase.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47209910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Synthesis and tribological properties of the novel tubular MoS2/GR nanocomposite 新型管状MoS2/GR纳米复合材料的合成及其摩擦学性能
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-07-01 DOI: 10.15251/cl.2023.207.469
E. Lu, M. Q. Wu, L. Dai, X. Xu
{"title":"Synthesis and tribological properties of the novel tubular MoS2/GR nanocomposite","authors":"E. Lu, M. Q. Wu, L. Dai, X. Xu","doi":"10.15251/cl.2023.207.469","DOIUrl":"https://doi.org/10.15251/cl.2023.207.469","url":null,"abstract":"This study used a simple one-step hydrothermal method to synthesize the MoS2/GR composites with a new morphology composed of graphene nanotubes and ultra-thin molybdenum disulfide with the help of sodium chloride. The composites were characterized by XRD, XPS, SEM, TEM, and a series of characterization methods. Meanwhile, the tribological properties of the composites were studied. The results show that the addition of 1% MoS2/GR composite nanotubes has excellent tribological properties. In addition, the structure and excellent tribological properties of MoS2-C- nanocomposite lubrication materials will be conducive to designing new nanomaterials with 2D/3D structures, enhancing the anti-friction and anti-wear properties, and expanding their practical applications in industrial and agricultural fields.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45811028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effect of metal cations on the conductivity and interfacial stability of Li7P3S10.7Br0.3 sulfide solid-state electrolytes 金属阳离子对Li7P3S10.7Br0.3硫化固态电解质电导率和界面稳定性的影响
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-05-01 DOI: 10.15251/cl.2023.204.301
J. -. Zhou, S. Cao, X. Li, C. Shen, M. Cong
{"title":"Effect of metal cations on the conductivity and interfacial stability of Li7P3S10.7Br0.3 sulfide solid-state electrolytes","authors":"J. -. Zhou, S. Cao, X. Li, C. Shen, M. Cong","doi":"10.15251/cl.2023.204.301","DOIUrl":"https://doi.org/10.15251/cl.2023.204.301","url":null,"abstract":"The development of sulfide solid electrolyte is limited by the interface instability with lithium metal and low ionic conductivity. In this work, the effects of doping SiS2, SnS, ZnS and MnS on the ionic conductivity and interfacial stability of sulfide electrolytes are systematically investigated. The conductivity of Li7P2.9Sn0.1S10.7Br0.3 solid electrolyte was as high as 1.67 mS cm-1 . Furthermore, it is found that the critical current density was proportional to the resistivity of the doping element. The critical current density of the electrolyte was significantly increased by electronically insulating Si doping, reaching 0.858 mA cm-2 .","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42623314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Analytical model for studying the role of ZnS-doped CdS on the performance of CZTSSe solar cells zns掺杂CdS对CZTSSe太阳能电池性能影响的分析模型
IF 1 4区 材料科学
Chalcogenide Letters Pub Date : 2023-05-01 DOI: 10.15251/cl.2023.205.333
H. Mohamed, Shazia Ali, M. R. Ahmed, W. S. Mohamed
{"title":"Analytical model for studying the role of ZnS-doped CdS on the performance of CZTSSe solar cells","authors":"H. Mohamed, Shazia Ali, M. R. Ahmed, W. S. Mohamed","doi":"10.15251/cl.2023.205.333","DOIUrl":"https://doi.org/10.15251/cl.2023.205.333","url":null,"abstract":"This study focuses on thin-film structures made of ITO, CdS, ZnS, CZTSSe, and Mo (i.e., ITO/CdS:ZnS/CZTSSe/Mo) for solar cell applications. The effect of ZnS content on the performance of this cell has been theoretically investigated. The optical losses caused by reflection at various interfaces and absorption in ITO and CdS:ZnS layers have been calculated using the current structure's experimental data. The losses due to charge carrier recombination at the front and back surfaces of the CZTSSe absorber have been calculated using the absorber layer and depletion region parameters. It was discovered that increasing the ZnS content causes more photons to enter the absorber layer, causing the short-circuit current density to increase. Under consideration of optical and recombination losses, a maximum efficiency of about 13.75%, a fill factor of 81.6%, and an open-circuit voltage of 808 mV were obtained for ZnS-content = 0.5.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42067213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Synthesis of Mn2+ modified CdS nanoparticles and its application as catalyst in photodegradation of methyl red dye Mn2+修饰CdS纳米颗粒的合成及其在甲基红染料光降解中的应用
4区 材料科学
Chalcogenide Letters Pub Date : 2023-05-01 DOI: 10.15251/cl.2023.204.251
R. Ranjan, C. M. S. Negi, K. P. Tiwary
{"title":"Synthesis of Mn2+ modified CdS nanoparticles and its application as catalyst in photodegradation of methyl red dye","authors":"R. Ranjan, C. M. S. Negi, K. P. Tiwary","doi":"10.15251/cl.2023.204.251","DOIUrl":"https://doi.org/10.15251/cl.2023.204.251","url":null,"abstract":"Photocatalytic degradation of methyl red dye using Mn(5%) doped CdS nanoparticles was studied.Mn doped CdS nanoparticles was synthesized by microwave assisted solvo thermal method where the chemicals used wereCadmium Acetate [(CH3COO)2Cd, H2O], Manganese Chloride [MnCl2.2H2O] and Sodium Sulfide [Na2S.xH2O]. X-Ray diffraction(XRD) analysis was carried out in order to analyze the structural dimensions of the synthesized nanoparticles and the average crystallite size has been calculated at the full width half maximum (FWHM) of the diffraction peaks using Debye-Scherer equation and it was found to be around2.3nm. FTIR spectra analysis was done in order to analyze different functional and vibrational groups present in the as synthesized sample of Mn doped CdSnanoparticles.The morphology of sample wasstudied by scanning electron microscope. The aqueous solution of methyl red[C15H15N3O2] has been prepared and was mixed with the as synthesized Mn doped CdSnanoparticles and was exposed for photocatalytic degradation using 100 W bulb. UV-visible spectra of the light irradiated methyl red solutions were studied at different interval of time and no red shift was observed with increase of exposure time. The intensity of the absorption peak was also found to be reduced with the increasing time interval. The photo degradation of methyl red dye was observed up to 90% at the exposure time of 90 minutes.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136272722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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