DENSE CHALCOPYRITE CuInSe2 THIN FILMS PREPARED WITH ETHANOL-BASED In2Se3-Cu+ INK.
- Resource Type
- Article
- Authors
- HUANG, X.; CHEN, X. L.; ZHENG, Z. W.; JI, H. M.; MA, Y. L.
- Source
- Chalcogenide Letters. Nov2019, Vol. 16 Issue 11, p545-555. 11p.
- Subject
- *THIN films
*CHALCOPYRITE
*CARRIER density
*ELECTRICAL resistivity
*INK
- Language
- ISSN
- 1841-4834
Here, we show a novel ink containing ethanol, In2Se3 nanosheets and Cu+ that can be used as the sol for filming by dip coating method. And pure chalcopyrite (CH) CuInSe2 (CIS) thin films were obtained when In2Se3 nanosheets with poor crystallinity as a component of the ink. We described the formation of the CH CIS films that exhibit (112)-orientation and dense structure without interspace. Hall measurement shows that the CIS film sintered at 550 ºC has an electrical resistivity of 3.19 Ω·cm and carrier concentration of 2.63×1017 cm-3, which meet the requirements of high performance solar cell absorption layer. [ABSTRACT FROM AUTHOR]