화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 37권 2호
발표분야 분자전자 부문위원회
제목 Creating Nanosphere Templated Continuous PEDOT:PSS Films with Low Percolation Threshold for Application in Efficient Polymer Solar Cells
초록 Self-assembled monodisperse spheres can be used as templates for the production of continuous conducting polymer phases with low percolation thresholds. In this work, nanometer-sized monodisperse polystyrene nanospheres (PS NS) were designed as an opal template for the formation of three-dimensionally continuous PEDOT:PSS films. The resultant films were successfully applied as the anode buffer layer (ABL) to produce highly efficient polymer solar cells (PSCs) with enhanced stability. The effect of the PS NS template on the PS NS-PEDOT:PSS film was thoroughly examined regarding the morphological and electrical behavior as a function of the PS NS volume fraction (φPS). The conductivity of the PS NS-PEDOT:PSS films was maintained up to φPS=0.75-0.80, which indicates that the percolation threshold of the continuous PEDOT:PSS layer in the film was as low as 0.20-0.25.
저자 강동진, 강현범, 김기현, 김범준
소속 KAIST
키워드 Nanosphere; PEDOT:PSS; Opal template; Polymer solar cell; Air stability; Self- assembled colloids; Anode buffer layer
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