Department of Physics, Coimbatore Institute of Technology , Coimbatore 641014, India.
Faculty of Engineering and Business Administration, Western Norway University of Applied Sciences , 5063 Bergen, Norway.
Langmuir. 2017 Jun 20;33(24):6151-6158. doi: 10.1021/acs.langmuir.7b01433. Epub 2017 Jun 6.
Here we studied the annealing induced shape transformation of 1D CuZnSnS (CZTS) nanorods from nanospheres and nanocubes by simple sol-gel method without using any toxic chemicals or complicated vacuum based technology. X-ray diffraction pattern and Raman spectra reveal the formation of kesterite structure CZTS thin films. The energy dispersive X-ray analysis results indicate the presence of Cu, Zn, Sn, and S. The elemental distribution of all the CZTS samples was studied using elemental mapping. The Hall effect studies of the CZTS thin film composed of nanorods exhibits the lowest resistivity values which indicates efficient charge transfer for unidirectional structure. The obtained optical band gap energy of CZTS thin film is in the range of 1.46-1.54 eV, which is quite close to the optimum theoretical value required for solar cell applications.
在这里，我们通过简单的溶胶-凝胶法研究了 1D CuZnSnS (CZTS) 纳米棒从纳米球到纳米立方体的退火诱导形状转变，而没有使用任何有毒化学物质或复杂的真空基技术。X 射线衍射图谱和拉曼光谱表明了 kesterite 结构 CZTS 薄膜的形成。能谱分析结果表明存在 Cu、Zn、Sn 和 S。使用元素映射研究了所有 CZTS 样品的元素分布。由纳米棒组成的 CZTS 薄膜的 Hall 效应研究表明，最低电阻率值表明单向结构的有效电荷转移。所得到的 CZTS 薄膜的光学带隙能量在 1.46-1.54 eV 范围内，这与太阳能电池应用所需的最佳理论值非常接近。
