TY - JOUR
T1 - Growth and characterization of SnS2(1-x)Se2x alloys
AU - Tsai, Chi Feng
AU - Lin, Der Yuh
AU - Ko, Tsung Shine
AU - Hwang, Sheng Beng
PY - 2019/1/1
Y1 - 2019/1/1
N2 - In this study, SnS2(1-x)Se2x alloys layered crystals were grown by the chemical vapor transport method. The crystal structure characterization has been substantiated by X-ray diffraction (XRD) and transmission electron microscope technologies. From each sample's XRD pattern, the peaks corresponds to (001), (002), (003), (004), and (005) which were found and used to determine the lattice constants. The band gap energies modulated from 2.28 eV (SnS2) to 1.23 eV (SnSe2) with the increasing content of Se, which were verified by piezoreflectance (PzR) spectra and absorption spectra. By PzR spectra and absorption spectra, the empirical relation between band gap energies and composition ratio, according to the extended Vegard's law, has been predicted; accorded with a bowing parameter b of 0.56 and 0.54 eV, respectively.
AB - In this study, SnS2(1-x)Se2x alloys layered crystals were grown by the chemical vapor transport method. The crystal structure characterization has been substantiated by X-ray diffraction (XRD) and transmission electron microscope technologies. From each sample's XRD pattern, the peaks corresponds to (001), (002), (003), (004), and (005) which were found and used to determine the lattice constants. The band gap energies modulated from 2.28 eV (SnS2) to 1.23 eV (SnSe2) with the increasing content of Se, which were verified by piezoreflectance (PzR) spectra and absorption spectra. By PzR spectra and absorption spectra, the empirical relation between band gap energies and composition ratio, according to the extended Vegard's law, has been predicted; accorded with a bowing parameter b of 0.56 and 0.54 eV, respectively.
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U2 - 10.7567/1347-4065/ab03c8
DO - 10.7567/1347-4065/ab03c8
M3 - Article
AN - SCOPUS:85065210053
VL - 58
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
M1 - SBBH08
ER -