Oxidation effect on densification of CuInS2 absorber layer by paste coating

Autor: Seung-Yup Lee, Ki-Hyun Kim, Byung-Ok Park
Rok vydání: 2008
Předmět:
Zdroj: Thin Solid Films. 516:4709-4712
ISSN: 0040-6090
Popis: Copper indium disulfide (CuInS 2 ) absorber layers were prepared by using a paste coating method. CuInS 2 and CuS were chosen as precursor powders. Ethylcellulose and phosphate ester were used respectively as a resin and a dispersant. Dihydroterpineol was used as a solvent. The paste was distributed on an Mo-coated soda–lime glass substrate by screen-printing method. It was difficult to obtain the densification of the CuS-doped CuInS 2 layer with only sulfurization in a graphite container box. However, when an oxidation process was applied to the CuS-doped CuInS 2 layer before the sulfurization process, quite dense CuInS 2 layers were obtained. Even though the chalcopyrite phase was nearly broke down with the oxidation, the phase was restructured with the sulfurization.
Databáze: OpenAIRE