The deposition of Group 6A-derived inorganic semiconductor films as studied by quartz crystal microgravimetry
摘要:
This paper focuses on the use of QCM for the study of semiconductor film deposition processes. Specifically the electrosynthesis of metal chalcogenides (In2S3, CdS, and CdTe) is considered. A brief background is first given for electrodeposition as a process candidate for semiconductor film preparation. Previous studies are reviewed on the use of QCM (and specifically EQCM) in this area. New combined voltammetry-EQCM data are presented for the oxidative deposition of sulfur on polycrystalline Au surfaces from alkaline sulfide baths. The anodic growth of CdS films and the cathodic electrosynthesis of In2S3 are studied by the combined approach. Finally, data are presented on the cathodic electrosynthesis of CdTe films using EQCM in a rotating disc electrode (RDE) configuration. From an instrumental perspective, the presented data illustrate the virtues of combining the QCM technique with cyclic voltammetry, coulometry, and hydrodynamic (RDE) voltammetry for studies of semiconductor film deposition. (C) 2000 Elsevier Science Ltd. All rights reserved.
Synthesis and in vitro cytotoxicity study of 3-(1H-indol-3-yl)-1,3-diphenylpropan-1-ones
摘要:
A series of 3-(1H-indol-3-yl)-1,3-diphenylpropan-1-ones 3a-l were synthesized in good to excellent yield by Michael addition of indole 1 with alpha,beta-unsaturated ketones 2a-l in presence of indium(III) sulphate (20 mol%). The structure of the title compounds were established by H-1 NMR, C-13 NMR, mass and elemental analysis. All the synthesized compounds were evaluated for in vitro cytotoxicity against five different cancer cell lines such as ACHN (human kidney adenocarcinoma), Panc1 (pancreatic), Calu1 (lung), H460 (non small cell lung), HCT116 (human colon cancer cell) and MCF10A (normal breast epithelium) using propidium iodide staining assay protocol. The result showed that the compounds 3e and 3l have excellent cytotoxic activity with the IC50 value ranging from 1.4-2.7 to 2.4-3.4 mu M, respectively, in comparison with the other compounds, Flavopiridol and Gemcitabine were employed as a positive control. The findings conferred 3-(1H-indol-3-yl)-1,3-diphenylpropan-1-ones seem to be promising candidates for the development of new anticancer drugs.
Electrodeposition and Characterization of CulnSe2 Thin Films
作者:Laurent Thouin、Jacques Vedel
DOI:10.1149/1.2048675
日期:1995.9.1
Copper indium diselenide (CuInSesub2}) presents a bandgap energy 0.95 < Esub g} < 1.04 eV and a light absorption coefficient very well suited to the photovoltaic conversion of solar energy. Investigations have been done to prepare this material by electrodeposition in order to find a process that decreases the total cost of the devices. The codeposition process of the Cu-In-Se system has been studied
report on the observation of efficient terahertzradiationfrom the surface of CuInSe2excited by femtosecondlaserpulses. Terahertzradiation emitted by polycrystalline CuInSe2 layers manufactured by using electrodeposition technology was as powerful as the signals radiated by single-crystalline semiconductor surfaces. It has been found that terahertzradiation efficiency is critically dependent on
Electrodeposition of In‐Se, Cu‐Se, and Cu‐In‐Se Thin Films
作者:R. N. Bhattacharya、A. M. Fernandez、M. A. Contreras、J. Keane、A. L. Tennant、K. Ramanathan、J. R. Tuttle、R. N. Noufi、A. M. Hermann
DOI:10.1149/1.1836548
日期:1996.3.1
slow-cooled (3 C/min). The films are characterized by electron microprobe analysis, inductive-coupled plasma spectrometry, X-ray diffraction analysis, Auger electron spectroscopy, and scanning electron microscopy. The as-deposited precursor films are loaded in a physical evaporation chamber and addition In or Cu and Se are added to the film to adjust the final composition to CuInSesub2}. The device fabricated
铟-硒、铜-硒和铜-铟-硒薄膜已通过电沉积技术在钼基板上制备。电沉积前体是在不同的电位、pH 值和沉积时间下制备的。通过在钼上电沉积初始铜层 (500 埃}) 提高了硒化铟在钼基板上的附着力和均匀性。薄膜(In-Se、Cu-Se 和 Cu-In-Se)在 Ar 中在 250 和 450 C 下退火 15 分钟,然后缓慢冷却(3 C/min)。薄膜的特征在于电子微探针分析、电感耦合等离子体光谱、X 射线衍射分析、俄歇电子光谱和扫描电子显微镜。将沉积的前体膜装入物理蒸发室,并将添加的 In 或 Cu 和 Se 添加到膜中以将最终组成调整为 CuInSesub 2}。使用电沉积 Cu-In-Se 前体层制造的器件的太阳能电池效率为 9.4%。
A Novel Method for the Preparation of Inorganic Sulfides and Selenides. I. Binary Materials and Group II–VI Phosphors
作者:Dominic A. Davies、Aron Vecht、Jack Silver、Paul J. Marsh、John A. Rose
DOI:10.1149/1.1393268
日期:——
A novel method for the synthesis of wide range of metal sulfides and selenides is described. Polysulfide solutions formed by the dissolution of sulfur in hydrazine monohydrate have been shown to contain the hexasulfide and tetrasulfide anions. The action of these solutions, or their selenium analogues, with a range of transition and main group metal salt solutions yields a precipitate, which after
CuS, In2S3 and CuInS2 nanoparticles by microwave-assisted solvothermal route and their electrochemical studies
作者:Mathato P. Motaung、Damian C. Onwudiwe、Lei Wei、Chaogang Lou
DOI:10.1016/j.jpcs.2021.110319
日期:2022.1
The synthesis of CuS, In2S3 and CuInS2 nanoparticles by microwave irradiation of single source precursors is reported. Monodispersed nanoparticles with spherical morphology, whose average particle size were 2.3 nm (CuS) and 15.2 (In2S3) were obtained for the binary sulphides, while the ternary nanoparticles (CuInS2) displayed spindle shape morphology with some degree of agglomeration. The CuS, In2S3