Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5361897 | Applied Surface Science | 2014 | 6 Pages |
Abstract
Some difficulties have long been encountered by single-step electrodeposition such as the optimization of electrolyte composition, deposition potentials, deposition time, and pH values. The approach of introducing ternary components into single-step electrodeposition is rather challenging especially due to the different values of the equilibrium potential for each constituent. Complexing agents play an important role in single-step electrodeposition of CuInSe2 (CIS), since the equilibrium potential of every constituent can be brought closer to each other when complexing agents are employed. In this work, single-step electrodeposition of CIS was enhanced by adding triethanolamine (TEA) into deposition bath, the CIS thin films were improved consequently in the form of polycrystalline cauliflower structures through the examination of SEM images and XRD patterns. The optimum composition of the solution for single-step electrodeposition of CIS is found to be 5Â mM CuCl2, 22Â mM InCl3, and 22Â mM SeO2 at pH 1.5 with 0.1Â M TEA. The structures, compositions, and morphologies of as-deposited and of annealed films were investigated.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Yu-Shuen Chiu, Mu-Tao Hsieh, Chih-Min Chang, Chun-Shuo Chen, Thou-Jen Whang,