논문 국내 국제전문학술지(SCI급) Solution-processed anti reflective transparent conducting electrode for Cu(In, Ga)Se2 thin film solar cells
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-03
- 저자명 정중희,이상엽,박세웅,박태준
- 학술지명 Korean Journal of Materials Research
- 발행처명 Korea Federation of Science and TechnologyBldg. 635-4, Rm 903,Yeoksarn-dong, Kangnarn-gu,Seoul135-703
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 4
홈페이지논문 초록 (Abstract)
Silver nanowire (AgNW) networks have been adopted as a front electrode in Cu(In, Ga)Se2 (CIGS) thin film solar cells due to their low cost and compatibility with the solution process. When an AgNW network is applied to a CIGS thin film solar cell, reflection loss can increase because the CdS layer, with a relatively high refractive index (n ~ 2.5 at 550 nm), is exposed to air. To resolve the issue, we apply solution-processed ZnO nanorods to the AgNW network as an anti-reflective coating. To obtain high performance of the optical and electrical properties of the ZnO nanorod and AgNW network composite, we optimize the process parameters-the spin coating of AgNWs and the concentration of zinc nitrate and hexamethylene tetramine (HMT-to fabricate ZnO nanorods. We verify that 10 mM of zinc nitrate and HMT show the lowest reflectance and 10% cell efficiency increase when applied to CIGS thin film solar cells.