Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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The influence of cathode material on the stability of organic photovoltaics

Cathode material에 따른 organic photovoltaics 안정성의 영향

  • Park, Jun-Ki (Chemical Engineering, Dongguk University) ;
  • Kim, Yong-Hoon (Flexible Display Research Center, Korea Electronics Technology Institute) ;
  • Han, Jeong-In (Chemical Engineering, Dongguk University)
  • 박준기 (동국대학교 화학공학과) ;
  • 김영훈 (전자부품연구원 플랙서블디스플레이연구센터) ;
  • 한정인 (동국대학교 화학공학과)
  • Published : 2011.07.20
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Abstract

We studied the influence of cathode material on the stability of organic phtovoltaics (OPVs). OPVs with LiF/Al and Ag/Ca/Ag cathode were fabricated and the stability were evaluated. The sample with LiF/Al cathode showed efficiency degradation from 2.42% to 2.04% during 50 days. On the other hand, the sample with Ag/Ca/Ag cathode showed more steeper efficiency degradation from 2.38% to 0.80% during 50 days. The different of degradation can be attributed to a larger increase of series resistance ($R_s$) in Ag/Ca/Ag cathode sample.

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