Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, ON N6A 5B7, Canada.
Phys Chem Chem Phys. 2010 Dec 14;12(46):15282-90. doi: 10.1039/c0cp00586j. Epub 2010 Sep 13.
Herein we report the one-pot electrodeposition of copper indium gallium diselenide, CuIn(1-x)Ga(x)Se(2) (CIGS), thin films as the p-type semiconductor in an ionic liquid medium consisting of choline chloride/urea eutectic mixture known as Reline. The thin films were characterized by scanning electron microscopy with energy dispersive X-ray analysis, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman microspectroscopy, and UV-visible spectroscopy. Based on the results of the characterizations, the electrochemical bath recipe was optimized to obtain stoichiometric CIGS films with x between 0.2 and 0.4. The chemical activity and photoreactivity of the optimized CIGS films were found to be uniform using scanning electrochemical microscopy and scanning photoelectrochemical microscopy. Low-cost stoichiometric CIGS thin films in one-pot were successfully fabricated.
在此，我们报告了一种在离子液体介质中一锅法电沉积铜铟镓二硒化物（CuIn(1-x)Ga(x)Se(2)，CIGS）薄膜作为 p 型半导体，该离子液体介质由氯化胆碱/尿素共晶混合物（称为 Reline）组成。通过扫描电子显微镜结合能谱分析、透射电子显微镜、X 射线光电子能谱、拉曼微光谱和紫外-可见光谱对薄膜进行了表征。根据这些表征的结果，优化了电化学浴配方，以获得化学计量比为 0.2 到 0.4 之间的 CIGS 薄膜。通过扫描电化学显微镜和扫描光电化学显微镜发现，优化后的 CIGS 薄膜具有均匀的化学活性和光反应性。成功制备了一锅法低成本化学计量比的 CIGS 薄膜。
