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The Improvement of Bulk-Heterojunction Order in Polymer Photovoltaic Device
Abstract：The blend morphology and vertical arrangement are critical to the performance of organic bulk-heterojunction photovoltaic devices.In the present paper,the authors proposed a new annealing method that controis the blend morphology and vertical arrangement of two materials by means of simultaneously applying external electrical field and violet irradiation on the active layer of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) during annealing process.By using this annealing method,the power conversion efficiency increased by 36％,which was caused by vertical phased-separated blend of crystalline P3HT and PCBM and better charge extraction of electrodes.X-ray photoelectron spectroscopy (XPS) was measured to prove more fullerene derivatives at the organic/cathode interfaces by using this annealing method.The X-ray diffraction (XRD) analysis and UV-Vis absorption spectrum analysis also revealed more ordered polymer crystallization. 作者： Author： YUAN Dan CHEN Zhi-jian XIAOLi-xin MULi-ping QU Bo GONG Qi-huang 作者单位： State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, China 期 刊： 光谱学与光谱分析 ISTICEISCIPKU Journal： Spectroscopy and Spectral Analysis 年，卷(期)： 2011, 31(12) 分类号： O482.7 Keywords： Polymer photovohaic device Bulk-heterojunction Annealing method 机标分类号： O6 TN3 机标关键词： fullerene derivatives conversion efficiency spectrum analysis blend active layer performance X-ray materials UV-Vis during better power paper means poly acid XRD XPS two new 基金项目： This work was financially supported by the National Natural.Science Foundation of China under grant No，the National Basic Research Program of China under grant No The Improvement of Bulk-Heterojunction Order in Polymer Photovoltaic Device[期刊论文] 光谱学与光谱分析 --2011, 31(12)The blend morphology and vertical arrangement are critical to the performance of organic bulk-heterojunction photovoltaic devices.In the present paper,the authors proposed a new annealing method that c...【The Improvement of Bulk-Heterojuncti】相关文章：
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