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나이프 코팅 기법으로 제작한 은 나노와이어 투명전극 기반의 대면적 ITO-Free 유기 태양전지
한규효(Kyuhyo Han),김건우(Gunwoo Kim),이재학(Jaehak Lee),석재영(Jaeyoung Seok),양민양(Minyang Yang) 한국생산제조학회 2015 한국생산제조학회지 Vol.24 No.1
Silver nanowire (AgNW) is a material that is increasingly being used for transparent electrodes, as a substitute for indium tin oxide (ITO), owing to its flexibility, high transmittance to sheet resistance ratio, and simple production process. This study involves manufacturing large-area organic photovoltaic cells (OPVs) deposited on AgNW electrodes. We compared the efficiency of OPVs with ITO and AgNW electrodes. The results verified that an OPV with an AgNW electrode performed better than that with an ITO electrode. Furthermore, by using the knife coating method, we successfully fabricated large-area OPVs without the loss of efficiency. Use of AgNW instead of ITO demonstrated that an OPV could be produced on various substrates by the solution process method, dropping the productions costs significantly. Additionally, by using the knife coating method, the process time and amount of wasted solution are reduced. This leads to an increase in the efficient fabrication of the OPV.