INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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The design and numerical analysis of tandem thermophotovoltaic cells |
Yang Hao-Yu (杨皓宇), Liu Ren-Jun (刘仁俊), Wang Lian-Kai (王连锴), Lü You (吕游), Li Tian-Tian (李天天), Li Guo-Xing (李国兴), Zhang Yuan-Tao (张源涛), Zhang Bao-Lin (张宝林) |
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China |
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Abstract In this paper, numerical analysis of GaSb (Eg=0.72 eV)/Ga0.84In0.16As0.14Sb0.86 (Eg=0.53 eV) tandem thermophotovoltaic (TPV) cells is carried out by using Silvaco/Atlas software. In the tandem cells, a GaSb p–n homojunction is used for the top cell and a GaInAsSb p–n homojunction for the bottom cell. A heavily doped GaSb tunnel junction connects the two sub-cells together. The simulations are carried out at a radiator temperature of 2000 K and a cell temperature of 300 K. The radiation photons are injected from the top of the tandem cells. Key properties of the single-and dual-junction TPV cells, including I–V characteristic, maximum output power (Pmax), open-circuit voltage (Voc), short-circuit current (Isc), etc. are presented. The effects of the sub-cell thickness and carrier concentration on the key properties of tandem cells are investigated. A comparison of the dual-TPV cells with GaSb and GaInAsSb single junction cells shows that the Pmax of tandem cells is almost twice as great as that of the single-junction cells.
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Received: 04 May 2013
Revised: 06 June 2013
Accepted manuscript online:
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PACS:
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84.60.Jt
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(Photoelectric conversion)
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02.60.-x
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(Numerical approximation and analysis)
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85.60.Bt
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(Optoelectronic device characterization, design, and modeling)
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71.55.Eq
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(III-V semiconductors)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61076010) and the Project of State Key Laboratory on Integrated Optoelectronics (Grant No. IOSKL2012ZZ13). |
Corresponding Authors:
Zhang Yuan-Tao, Zhang Bao-Lin
E-mail: zhangyt@jlu.edu.cn;zbl@jlu.edu.cn
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Cite this article:
Yang Hao-Yu (杨皓宇), Liu Ren-Jun (刘仁俊), Wang Lian-Kai (王连锴), Lü You (吕游), Li Tian-Tian (李天天), Li Guo-Xing (李国兴), Zhang Yuan-Tao (张源涛), Zhang Bao-Lin (张宝林) The design and numerical analysis of tandem thermophotovoltaic cells 2013 Chin. Phys. B 22 108402
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