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Inverted organic photovoltaic device with a new electron transport layer

Hyeong Pil Kim, Abd Rashid bin Mohd Yusoff, Hyo Min Kim, Hee Jae Lee, Gi Jun Seo and Jin Jang*

Author Affiliations

Advanced Display Research Center, Department of Information Display, Kyung Hee University, Dongdaemoon-gu 130-701, Seoul, South Korea

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Nanoscale Research Letters 2014, 9:150  doi:10.1186/1556-276X-9-150

Published: 27 March 2014

Abstract

We demonstrate that there is a new solution-processed electron transport layer, lithium-doped zinc oxide (LZO), with high-performance inverted organic photovoltaic device. The device exhibits a fill factor of 68.58%, an open circuit voltage of 0.86 V, a short-circuit current density of −9.35 cm/mA2 along with 5.49% power conversion efficiency. In addition, we studied the performance of blend ratio dependence on inverted organic photovoltaics. Our device also demonstrates a long stability shelf life over 4 weeks in air.

Keywords:
Lithium; Zinc oxide; Organic photovoltaic; Stability; Solution-processed; Electron transport layer; Blend ratio