| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
|
|
|
|
Enhanced Efficiency of Metamorphic Triple Junction Solar Cells for Space Applications |
| Du-Xiang Wang, Ming-Hui Song**, Jing-Feng Bi, Wen-Jun Chen, Sen-Lin Li, Guan-Zhou Liu, Ming-Yang Li, Chao-Yu Wu |
Tianjin San'an Optoelectronics Co., LTD., Tianjin 300384
|
|
| Cite this article: |
|
Du-Xiang Wang, Ming-Hui Song, Jing-Feng Bi et al 2017 Chin. Phys. Lett. 34 068801 |
|
|
|
|
Abstract Metamorphic In$_{0.55}$Ga$_{0.45}$P/In$_{0.06}$Ga$_{0.94}$As/Ge triple-junction (3J-MM) solar cells are grown on Ge (100) substrates via metal organic chemical vapor deposition. Epi-structural analyses such as high resolution x-ray diffraction, photoluminence, cathodoluminescence and HRTEM are employed and the results show that the high crystal quality of 3J-MM solar cells is obtained with low threading dislocation density of graded buffer (an average value of 6.8$\times$10$^{4}$/cm$^{2})$. Benefitting from the optimized bandgap combination, under one sun, AM0 spectrum, 25$^{\circ}\!$C conditions, the conversion efficiency is achieved about 32%, 5% higher compared with the lattice-matched In$_{0.49}$Ga$_{0.51}$P/In$_{0.01}$Ga$_{0.99}$As/Ge triple junction (3J-LM) solar cell. Under 1-MeV electron irradiation test, the degradation of the EQE and $I$–$V$ characteristics of 3J-MM solar cells is at the same level as the 3J-LM solar cell. The end-of-life efficiency is $\sim$27.1%. Therefore, the metamorphic triple-junction solar cell may be a promising candidate for next-generation space multi-junction solar cells.
|
|
|
Received: 07 February 2017
Published: 23 May 2017
|
|
| PACS: |
88.40.hj
|
(Efficiency and performance of solar cells)
|
| |
88.40.jp
|
(Multijunction solar cells)
|
| |
84.60.Jt
|
(Photoelectric conversion)
|
|
|
| Fund: Supported by the Grand from Tianjin Little Giant Fund under Grant No 14ZXLJGX00400, and the Tianjin Science and Technology Support Plan under Grant No 16YFZCGX00030. |
|
|
|
| [1] | http://boeing.mediaroom.com/2001-11-26-Successful-Launch-Sends-Boeing-Built-DIRECTV-4S-Satellite-to-Orbit | | [2] | King R R et al 2002 Proc. 29th IEEE Photovoltaic Specialists Conference p 776 | | [3] | Strobl G F X et al 2012 Proc. 27th European Photovoltaic Solar Energy Conference and Exhibition p 104 | | [4] | Kurtz S R et al 2002 Appl. Phys. Lett. 80 1379 | | [5] | Zhang H et al 2010 Sci. Chin. Technol. Sci. 53 2569 | | [6] | King R R, Law D C, Edmondson K M, Fetzer C M, Kinsey G S, Yoon H, Sherif R A and Karam N H 2007 Appl. Phys. Lett. 90 183516 | | [7] | Fuhrmann D, Meusel M, Ebel L, Guter W, Kubera T, Köstler W and Strobl G 2013 Proc. 9th International Conference on Concentrator Photovoltaic Systems p 1 | | [8] | King R R, Law D C, Edmondson K M, Fetzer C M, Kinsey G S, Yoon H, Krut D D, Ermer J H, Sherif R A and Karam N H 2007 Adv. OptoElectron. 2007 29523 | | [9] | Fetzer C M, King R R, Colter P C, Edmondson K M, Law D C, Stavrides A P, Yoon H, Ermer J H, Romero M J and Karam N H 2004 J. Cryst. Growth 261 341 | | [10] | Dimroth F, Schubert U and Bett A W 2000 IEEE Electron Device Lett. 21 209 | | [11] | Bett A W, Baur C, Dimroth F and Schöne J 2005 Mater. Res. Soc. Symp. Proc. 836 L6.4 | | [12] | King R R, Haddad M, Isshiki T, Colter P, Ermer J, Yoon H, Joslin D E and Karam N H 2000 Proc. 28th IEEE Photovoltaic Specialists Conference p 982 | | [13] | Meusel M, Baur C, Guter W, Hernle M and Dimroth F 2005 Proc. 20th European Photovoltaic Solar Energy Conference and Exhibition p 20 | | [14] | Walters R J, Messenger S R, Cotal H R, Xapsos M A, Wojtczuk S J, Serreze H B and Summers G P 1997 J. Appl. Phys. 82 2164 | | [15] | Hu J M, Wu Y Y, Qian Y, Yang D Z and He S Y 2009 Acta Phys. Sin. 58 5051 (in Chinese) |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
