화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 가을 (10/09 ~ 10/10, 일산킨텍스)
권호 33권 2호
발표분야 차세대 유기태양전지 기술
제목 Characteristics of flexible ITO electrode grown by Roll-to-Roll sputtering for flexible organic solar cells
초록 The preparation and characteristics of flexible a-ITO electrodes grown on PET substrates using roll-to-roll sputtering system for use in flexible organic solar cells are described. It was found that both electrical and optical properties of the flexible ITO electrode were critically dependent on the Ar/O2 flow ratio in the continuous roll-to-roll sputter process. In spite of low a PET substrate temperature, we can obtain the flexible ITO electrode with a sheet resistance of 47.4 Ohm/square and an average optical transmittance of 83.46 % in the green region of 500~550 nm wavelength. Furthermore, the flexible organic solar cell fabricated on the roll-to-roll sputter grown flexible ITO electrode at an optimized condition exhibited a power conversion efficiency of 1.88%. This indicates that the roll-to-roll sputtering technique is a promising continuous sputtering process in preparing flexible transparent electrodes for the mass production of flexible solar cells or displays.
저자 정진아1, 최광혁1, 김한기1, 나석인2, 김석순3, 김동유2
소속 1금오공과대, 2광주과학기술원, 3군산대
키워드 Roll-to-Roll; ITO; organic solar cell
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