C:Corrosive;
7646-85-7Relevant articles and documents
Cu2ZnSnS4crystal growth using an SnCl2based flux
Kokh,Atuchin,Adichtchev,Gavrilova,Bakhadur,Klimov,Korolkov,Kuratieva,Mukherjee,Pervukhina,Surovtsev
, p. 1025 - 1032 (2021/02/06)
The stoichiometry and phase homogeneity of the kesterite type compound Cu2ZnSnS4play a key role in its efficiency in solar cells. In this work, CuCl2, ZnCl2and SnCl2were applied as solvents in the Cu2ZnSnS4crystal growth for the first time. The multiphase ingot was obtained by direct fusion of the stoichiometric batch composed of constituent elements. Compared to that, the material recrystallized in SnCl2presented a single-phase Zn-rich kesterite with composition Cu1.94Zn1.06SnS4and unit cell parameters ofa= 5.4324(3) andc= 10.8383(2) ?. The crystal structure of Cu1.94Zn1.06SnS4was determined by single crystal X-ray diffraction analysis. The integral phase purity of the crystals grown with the use of the SnCl2solvent was verified by powder X-ray diffraction analysis and Raman measurements. In the Raman spectrum, the FWHM value of the 337 cm?1line was as low as 9.6 cm?1that indicates the minimal lattice disorder.
The Tetrachloridoaurates(III) of Zinc(II) and Cadmium(II)
Landvogt, Christian,Beck, Johannes
, p. 391 - 396 (2018/04/09)
The first salt-like compounds of dications with [AuCl4]– anions are reported. The compounds Zn[AuCl4]2·(AuCl3)1.115 (1) and Cd[AuCl4]2 (2) are obtained from reactions of MCl2 (M = Zn, Cd) and elemental gold in liquid chlorine at ambient temperature under autogenous pressure and subsequent annealing at 230 °C. The structure of 1 represents an incommensurately modulated composite [superspace group C2/c(α0γ)0s] built of two subsystems. The first subsystem contains chains of zinc(II) tetrachloridoaurate(III), which feature a slightly distorted octahedral coordination of Zn and can be described by the Niggli formula 1∞{Zn[AuCl4]1/1[AuCl4]2/2}. The second subsystem consists of Au2Cl6 molecules, which are located in channels built up by the first subsystem. The structural parameters of the hosted Au2Cl6 molecules show only small deviations from neat AuCl3. The crystal structure of Cd[AuCl4]2 (2) consists of chains built of Cd2+ ions coordinated by bridging [AuCl4]– anions and alternating Cd-Au sequence. Cd has a distorted octahedral coordination environment.
Facile synthesis and an effective doping method for ZnO:In3+ nanorods with improved optical properties
Nam, Giwoong,Kim, Byunggu,Leem, Jae-Young
, p. 1 - 7 (2015/09/01)
The sol-gel spin-coating method is usually used for thin-film deposition rather than to grow one-dimensional nanostructures. In this study, a novel regrowth method for spin-coated ZnO:In3+ films is demonstrated, using vapor-confined face-to-face annealing (VC-FTFA) in which a mica sheet is inserted between the two films prior to FTFA. ZnO:In3+ nanorods are regrown when indium chloride is used as the solvent because ZnCl2 and InCl3 vapors are generated and confined between the films. The near-band-edge emission intensity of the ZnO:In3+ nanorods resulting from VC-FTFA at 700 °C is enhanced by a factor of 17 compared with that of ZnO:In3+ films annealed in open air at the same temperature. Our method offers a simple and low-cost route for the fabrication of ZnO nanorods.
