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| 改善有机光伏器件性能的新型缓冲层 | |
| 引用本文： | 粱立志,吴英,石景龙,康博南.改善有机光伏器件性能的新型缓冲层[J].高等学校化学学报,2011,32(8):1661-1663. |
| 作者姓名： | 粱立志 吴英 石景龙 康博南 |
| 作者单位： | 1. 吉林大学电子科学与工程学院,集成光电子学国家重点联合实验室吉林大学实验区,长春130012 2. 吉林大学电子科学与工程学院,化学学院,超分子结构与材料国家重点实验室,长春130012 |
| 基金项目： | 国家自然科学基金，吉林省科技发展计划项目，吉林大学超分子结构与材料国家重点实验室开放课题 |
| 摘 要： | 通过热蒸发在ITO阳极和聚3,4-乙撑二氧噻吩:聚苯乙烯磺酸(PEDOT:PSS)层之间引入一层聚四氟乙烯（PTFE）缓冲层，研究聚四氟乙烯缓冲层对基于聚3-己基噻吩:6,6-苯基-C61丁酸甲酯(P3HT:PCBM)的有机光伏器件光电特性影响。与使用PEDOT:PSS作为缓冲层的器件相比，使用聚四氟乙烯缓冲层的有机光伏器件开路电压、短路电流和光电转换效率均有所提高。器件光电性能提高的原因是由于PTFE缓冲层大量带负电荷的氟离子在ITO/PTFE界面处形成偶极子层, 改善了内建电场，从而使得空穴电荷的收集更加有利。 |
| 关 键 词： | 有机光伏器件 缓冲层 聚四氟乙烯 光电特性 |
| 收稿时间： | 2011-05-12 |
New Buffer Interlayer for Improving Device Performances of Organic Photovoitaics |
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| LIANG Li-Zhi,WU Ying,SHI Jing-Long,KANG Bo-Nan.New Buffer Interlayer for Improving Device Performances of Organic Photovoitaics[J].Chemical Research In Chinese Universities,2011,32(8):1661-1663. | |
| Authors: | LIANG Li-Zhi WU Ying SHI Jing-Long KANG Bo-Nan |
| Institution: | 1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science &; Engineering, 2. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China |
| Abstract: | The effects of polytetrafluoroethylene(PTFE) on poly(3\|hexylthiophene)∶phenyl-C61-butyric acid methyl ester(P3HT∶PCBM) based organic photovoltaic(OPV) devices were investigated by inserting thermally evaporated PTFE films between indium-tin-oxide(ITO) and poly(3,4-ethylenedioxythiophene)∶poly(styrene-sulfonate)(PEDOT∶PSS) layers. Significant improvement in terms of open-circuit voltage, short-circuit current, and thereby in its commensurate power conversion efficiency is compared to devices without a PTFE layer. The OPVs performance enhancement is attributed to the formation of an artificial dipole layer forming from the rich, negatively charged fluorine that facilitates the hole extraction process. |
| Keywords: | Organic photovoltaic device Buffer interlayer Polytetrafluoroethylene I-V characteristics |
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