Ontology highlight
ABSTRACT:
SUBMITTER: Yang C
PROVIDER: S-EPMC3573333 | biostudies-literature | 2013
REPOSITORIES: biostudies-literature
Yang Chongyin C Qin Mingsheng M Wang Yaoming Y Wan Dongyun D Huang Fuqiang F Lin Jianhua J
Scientific reports 20130101
Nanostrcutured particles and polycrystalline thin films of Sn-doped chalcopyrite are synthesized by newly-developed methods. Surprisingly, Sn doping introduces a narrow partially filled intermediate band (IB) located ~1.7 eV (CuGaS(2)) and ~0.8 eV (CuInS(2)) above the valance band maximum in the forbidden band gap. Diffuse reflection spectra and photoluminescence spectra reveal extra absorption and emission spectra induced by the IBs, which are further supported by first-principle calculations. ...[more]