INM - Leibniz Institute for New Materials, 66123 Saarbrücken, Germany.
J Colloid Interface Sci. 2012 Sep 15;382(1):48-52. doi: 10.1016/j.jcis.2012.05.030. Epub 2012 May 24.
In this work, Cu(In,Ga)Se(2) (CIGS) nanoparticles were synthesized using a wet chemical method. The method is based on a non-vacuum thermal process that does not use selenization. The effects of temperature, source materials, and growth conditions on the phase and particle size were investigated. X-ray diffraction results confirm the formation of a tetragonal CIGS structure as the main phase with the purity more than 99% obtained by energy-dispersive X-ray spectroscopy (EDX). The morphology and size of the samples were investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Using these methods, 20-80nm particles were obtained. Through measurements of the absorption spectra of CIGS nanoparticles, the band gap of the synthesized material was determined to be about 1.44eV, which corresponds to an acceptable wavelength region for absorber layers in solar cells.
在这项工作中，使用湿化学法合成了铜铟镓硒（CIGS）纳米粒子。该方法基于非真空热过程，不使用硒化处理。研究了温度、原料和生长条件对相和颗粒尺寸的影响。X 射线衍射结果证实，形成了主要相为四方相的 CIGS 结构，通过能谱仪（EDX）得到的纯度超过 99%。样品的形貌和尺寸通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行了研究。通过这些方法，得到了 20-80nm 的颗粒。通过测量 CIGS 纳米粒子的吸收光谱，确定了合成材料的能带隙约为 1.44eV，这对应于太阳能电池吸收层的可接受波长区域。
