State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, 5625 Renmin Street, Changchun, P. R. China 130022.
Inorg Chem. 2011 Dec 5;50(23):11958-64. doi: 10.1021/ic201083r. Epub 2011 Sep 26.
Metastable zinc blende CuInSe(2) nanocrystals were synthesized by a hot-injection approach. It was found that the lattice mismatches between zinc blende CuInSe(2) and ZnSe as well as CuInSe(2) and CuInS(2) are only 2.0% and 4.6%, respectively. Thus, alloyed (ZnSe)(x)(CuInSe(2))(1-x) and CuInSe(x)S(2-x) nanocrystals with a zinc blende structure have been successfully synthesized over the entire composition range, and the band gaps of alloys can be tuned in the range from 2.82 to 0.96 eV and 1.43 to 0.98 eV, respectively. These alloyed (ZnSe)(x)(CuInSe(2))(1-x) and CuInSe(x)S(2-x) nanocrystals with a broad tunable band gap have a high potential for photovoltaic and photocatalytic applications.
介稳态闪锌矿结构的 CuInSe(2) 纳米晶通过热注射法合成。研究发现，闪锌矿结构的 CuInSe(2) 与 ZnSe 以及 CuInSe(2) 与 CuInS(2) 的晶格失配率分别仅为 2.0%和 4.6%。因此，在整个组成范围内成功地合成了具有闪锌矿结构的合金 (ZnSe)(x)(CuInSe(2))(1-x) 和 CuInSe(x)S(2-x) 纳米晶，并且合金的能带隙可以分别在 2.82 到 0.96 eV 和 1.43 到 0.98 eV 的范围内进行调节。这些具有宽可调带隙的合金 (ZnSe)(x)(CuInSe(2))(1-x) 和 CuInSe(x)S(2-x) 纳米晶在光伏和光催化应用方面具有很大的潜力。
