| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Research Progress of Si/PEDOT∶PSS Heterojunction Solar Cells |
| FANG Wenzhong1,2,†, SUN Tao2,3,†, DUAN Yong1,2, WANG Pan1,2, NI Zitao2,3, YANG Yu2,3
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1 College of Materials Science and Engineering, Yunnan University, Kunming 650091
2 National Joint Research Center for Photovoltaic Energy Materials, Yunnan University, Kunming 650091
3 Institute of Energy Research, Yunnan University, Kunming 650091 |
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Abstract Si/organic hybrid solar cells, using organic materials as photohole transporting layers, have been achieved significant developments of in recent years caused by the optimization of material modification and device retrofit. However, the organic composites’ shortages, like low electrical conductivity and interface instability, seriously affected power conversion efficiency (PCE) and device lifetime, and hindered the deve-lopment of photovoltaic technologies and applications. As the best organic materials for Si/organic heterojunction solar cells, PEDOT∶PSS, owing to its excellent conductivity and transmittance, became an ideal organic material and used for photohole-transporting layers. Comparing to traditional silicon-based solar cells, the combined PEDOT∶PSS layer has high conductivity for effectively transferring generated holes, and the high permeability reduces the parasitic absorption. In addition, the assembly process is not require high temperature, remarkably reducing the production costs. But the PSS components is insulative and deteriorates the conductivity and stability of PEDOT∶PSS film, thereby, numerous research work focused on the material modification and device conversation via material synthesis, micro-interface design, structural reorganization and other techniques. Their significant job greatly promoted the preparative techniques and applications of Si/PEDOT∶PSS solar cells, and dramatically increased the PCE from 5.09% to 17.4%.
Thus, this article studies the structures and working principles of Si/PEDOT∶PSS heterojunction solar cells firstly, particularly investigates the methods and mechanisms of micro surface design, interface oxide-layer introduction, doping modification, microgrid electrode intercalation and other optimal approaches. We also supplies our prospects for the technical development and theoretical analysis, which might provide some suggestions for the technological development and industrial manufactory of Si/PEDOT∶PSS heterogeneous junction solar cells.
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Published: 30 September 2019
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| Fund:This work was financially supported by the Scientific Research Key Fund of Yunnan Provincial Department of Education (2018FD012), the YNU East-Land Scholar Research Fund (WX069051), Yunnan University Action Plan of Serve the Yunnan Province (2016MS15). |
About author:: Wenzhong Fang graduated from Yancheng Institute of Technology with a bachelor’s degree in materials science and engineering in 2017. Now he is a master student at Yunnan University and is conducting research under the guidance of Professor Yang Yu. At present, the main field is the application of solar cells integrated with silicon nanomaterials and organic thin films.
Tao Sun, associate professor of Yunnan University, supervisor of, graduated from the University of New South Wales with master degree in chemical science and engineering in 2011, and obtained Ph.D. degree in materials science from Griffith University in 2015. He has been working in the School of Energy, Yunnan University since 2016. Main research areas are the synthesis and applications of photo/electrocatalytic materials and photovoltaic devices.
Yu Yang, professor of Yunnan University, director of Energy Research, doctoral supervisor. In 1995, he obtained a Ph.D. degree in condensed matter physics from the Department of Physics, Fudan University. From 1995 to 1997, he worked as a postdoctoral researcher at the Shanghai Institute of Metallurgy, Chinese Academy of Sciences. From 2006 to 2008, he worked as a visiting scholar at Harvard University. Conduct scientific research with the Academy of Applied Sciences. Member of the editorial board of the Materials Reports, Infrared Technology, Journal of Functional Materials, Journal of Synthetic Crystals. He is currently a member of the Yunnan Academic Committee, the Provincial Science and Technology Department, a member of the Yunnan Academic Committee, the Chairman of Yunnan University Research and the Communications Review Expert in the 863 Materials Science and Engineering field. Research areas include: semiconductor low-dimensional materials photoelectric performance research and device preparation and new energy materials and devices. |
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2019, Vol. 33 
