文献类型：期刊文献

英文题名：Biomolecule-assisted green route to Sb2S3 crystals with three-dimensional dandelionlike patterns

作者：Xiang, Weidong[1]; Ji, Guoyuan[2]; Wei, Jing[2]; Yang, Yuxiang[2]; Yuan, Hongming[3]; Liu, Xiangnong[4]

机构：[1] College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China; [2] Department of Chemistry, East China University of Science and Technology, 200237, China; [3] State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China; [4] Analysis Test Center, Yangzhou University, Yangzhou 225009, China

年份：2011

卷号：11

期号：9

起止页码：7820

外文期刊名：Journal of Nanoscience and Nanotechnology

收录：EI(收录号：20120814775396)

语种：英文

外文关键词：Amino acids - Antimony compounds - Energy gap - Biomolecules - Sulfur compounds

摘要：This paper describes a simple biomolecule-assisted solvothermal approach to fabricate the threedimensional (3D) Sb2S3 microsphere with a wealth of novel morphologies in the presence of L-cysteine, which served as both the sulfur source and the directing molecule in the formation of antimony sulfide nanostructures. The effects of different solvents, and polyvinylpyrrolidone (PVP) on the morphology, structure, and phase composition of the as-prepared Sb2S3 products were discussed. The formation of 3D dandelionlike Sb2S3 microsphere was probably via the mechanism of the orientated aggregation growth of the Sb 2S3 particles under the complexing action of L-cysteine, and co-action of the surfactant PVP. The absorption spectra of as-prepared 3D dandelionlike Sb2S3 structures show an optical shoulder band gap of 1.81 eV, which is near to the optimum for photovoltaic conversion. Copyright ? 2011 American Scientific Publishers. All rights reserved.