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.

Abstract
1. 서 론
2. 실험 방법
    2.1 AgNW network 전면전극 제조
    2.2 ZnO 반사방지막 형성
    2.3 측정 방법
3. 결과 및 고찰
4. 결 론
References

• 박세웅(한밭대학교 공과대학 신소재공학과) | Sewoong Park (Department of Materials Science and Engineering, Hanbat National University)
• 박태준(한밭대학교 공과대학 신소재공학과) | Taejun Park (Department of Materials Science and Engineering, Hanbat National University)
• 이상엽(한밭대학교 공과대학 신소재공학과) | Sangyeob Lee (Department of Materials Science and Engineering, Hanbat National University) Corresponding author
• 정중희(한밭대학교 공과대학 신소재공학과) | Choong-Heui Chung (Department of Materials Science and Engineering, Hanbat National University) Corresponding author