New Buffer Interlayer for Improving Device Performances of Organic Photovoltaics

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (8): 1661.

• Letters • Previous Articles Next Articles

New Buffer Interlayer for Improving Device Performances of Organic Photovoltaics

LIANG Li-Zhi¹, WU Ying², SHI Jing-Long¹, KANG Bo-Nan^1*

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

Received:2011-05-12 Revised:2011-06-14 Online:2011-08-10 Published:2011-07-19
Contact: KANG Bo-Nan E-mail:kangbn@jlu.edu.cn
Supported by:
国家自然科学基金(批准号: 51073065)、吉林省科技发展计划项目(批准号: 20090357)和吉林大学超分子结构与材料国家重点实验室开放课题(批准号: SKLSSM20.0913)资助.

Abstract

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.

Key words: Organic photovoltaic device, Buffer interlayer, Polytetrafluoroethylene, I-V characteristics

TrendMD:

LIANG Li-Zhi, WU Ying, SHI Jing-Long, KANG Bo-Nan*. New Buffer Interlayer for Improving Device Performances of Organic Photovoltaics[J]. Chem. J. Chinese Universities, 2011, 32(8): 1661.

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New Buffer Interlayer for Improving Device Performances of Organic Photovoltaics

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