L-cystine-Assisted Growth and Mechanism of CuInS2 Nanocrystallines via Solvothermal Process

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2011,（5）
• 页码范围: 245-248
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/28/5/057702

摘要

L-cystine is successfully used as a kind of sulfur source to grow CuInS2 nanocrystallines at 200°C for 18 h in a mixed solution made of 20mL ethylenediamine and 20mL distilled water.The diameter of the CuInS2 nanocrystallines ranges from 300 to 500 nm.The structure of nanocrystallines is determined to be of the tetragonal phase of CuInS2.A reasonable possible mechanism for the growth of CuInS2 nanocrystallines is proposed.The as-obtained CuInS2 products are examined using diverse techniques including x-ray powder diffraction,xray photoelectron spectroscopy,field-emission scanning electron microscopy,transmission electron microscopy,selected-area electron diffraction and high-resolution transmission electron microscopy.