화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2007년 가을 (10/11 ~ 10/12, 일산킨텍스)
권호 32권 2호
발표분야 플렉서블 일렉트로닉스와 고분자재료
제목 Spray deposition method for the fabrication of flexible organic solar cells
초록 We report on a spray deposition method as a cost efficient technique for the fabrication of organic solar cells (OSCs). Active layers of OSCs were fabricated using conventional handheld airbrushes and a solution of poly-3-hexylthiophene and 1-(3-methoxycarbonyl)-propyl-1,1-phenyl-(6,6)C61 in chlorobenzene. Although the spray deposited film showed relatively rough surface than spin coated ones, pinhole free and constant thickness films could be obtained in a few square centimeter areas. We fabricated bulk heterojunction OSCs with various thicknesses of active layers. Among them, an OSC with 113 nm of active layer showed the best performance with 2.83 % of power conversion efficiency under 100 mW/cm2 illuminations with air mass 1.5 G condition and 52% of incident photon to current conversion efficiency at 510 nm even though the device was fabricated in air. The performance of sprayed OSCs was comparable to that of the spin coated devices fabricated in air.
저자 박두진, 조장, 김동유
소속 광주과학기술원 히거신소재연구센터
키워드 bulk heterojunction; solar cells; P3HT; PCBM
E-Mail kimdy@gist.ac.kr