journal article·2017-06

Achieving 12.8% Efficiency by Simultaneously Improving Open‐Circuit Voltage and Short‐Circuit Current Density in Tandem Organic Solar Cells

Yunpeng Qin, Yu Chen, Yong Cui, Shaoqing Zhang, Huifeng Yao, Jiang Huang, Wanning Li, Zhong Zheng, Jianhui Hou

Advanced Materials· Volume 29· Issue 24
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Abstract

Tandem organic solar cells (TOSCs), which integrate multiple organic photovoltaic layers with complementary absorption in series, have been proved to be a strong contender in organic photovoltaic depending on their advantages in harvesting a greater part of the solar spectrum and more efficient photon utilization than traditional single‐junction organic solar cells. However, simultaneously improving open circuit voltage (Voc) and short current density (Jsc) is a still particularly tricky issue for highly efficient TOSCs. In this work, by employing the low‐bandgap nonfullerene acceptor, IEICO, into the rear cell to extend absorption, and meanwhile introducing PBDD4T‐2F into the front cell for improving Voc, an impressive efficiency of 12.8% has been achieved in well‐designed TOSC. This result is also one of the highest efficiencies reported in state‐of‐the‐art organic solar cells.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemistry and Biology Engineering University of Science and Technology Beijing Beijing 100083 China

State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology Beijing 100190 China

State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 China

Funding

National Natural Science Foundation of China · China Postdoctoral Science Foundation · University of Electronic Science and Technology of China

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