期刊
ORGANIC ELECTRONICS
卷 15, 期 7, 页码 1545-1551出版社
ELSEVIER
DOI: 10.1016/j.orgel.2014.04.026
关键词
ITO-free; ITO-based; Resonant microcavity; Polymer solar cells; PCDTBT
资金
- National Natural Science Foundation of China [61275035, 61370046]
- Chinese National Programs for High Technology Research and Development (863 program) [2013AA0 30902]
- Natural Science Foundation of Guangdong Province, China [S2013010012854]
- Project of Science and Technology Development Plan of Jilin Province [20110314, 20120324]
- Scientific Frontier and InterdisciplineInnovative Projects of Jilin University Foundation for High-level Talents in Higher Education of Guangdong Province, China [2013ZY18, 246, 10]
- Foundation for Industrial Technology Research and Development Projects of Jiangmen City [2012-156-09]
- Opened Fund of the State Key Laboratory on Integrated Optoelectronics [IOSKL2012KF03]
Indium tin oxide (ITO)-free polymer solar cells (PSCs) with the structure of Glass/tungsten trioxide (WO3)/Au/WO3/PCDTBT: PC70BM/LiF/Al was fabricated and studied. The multi-layer structure of WO3/Au/WO3 is used as the potential transparent electrode to replace ITO. Metal resonant microcavity, which can enhance light harvesting of active layers, was constructed between Au and Al electrodes. According to the J-V and IPCE characterization with 70 nm active layer, power conversion efficiency (PCE) of the ITO-free microcavity device is approaching 4.55%, which is higher than that of the ITO-based device. However, PCE of the ITO-free device is much lower than that of the ITO-based device when the thickness of active layer increases to 130 nm. The opposite experimental tendency leads to theoretical research toward the simulation of light absorption and optical electric field and the calculation of maximum short circuit current density (J(sc max)) as a function of active layer thickness based on ITO-free and ITO-based devices. The research results show that microcavity effect is closely linked to intrinsic absorption of active layers. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据