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采用阶变缓冲层技术 (step-graded) 外延生长了具有更优带隙组合的倒装GaInP/GaAs/In0.3Ga0.7As(1.0 eV) 三结太阳电池材料, TEM和HRXRD测试表明晶格失配度为2%的In0.3Ga0.7As 底电池具有较低的穿透位错密度和较高的晶体质量, 达到太阳电池的制备要求. 通过键合、剥离等工艺制备了太阳电池芯片. 面积为 10.922 cm2 的太阳电池芯片在空间光谱条件下转换效率达到32.64% (AM0, 25 ℃), 比传统晶格匹配的 GaInP/GaAs/Ge(0.67 eV) 三结太阳电池的转换效率提高3个百分点.High efficiency inverted metamorphic (IMM) GaInP/GaAs/In0.3Ga0.7As(1.0 eV) triple-junction solar cells have been fabricated by growing In0.3Ga0.7As(1.0 eV) sub-cell using step-graded buffer layer, which is 2% lattice mismatch to the GaAs middle cell. The high crystalline quality and low threading dislocation density are confirmed by high resolution X-ray diffraction (HRXRD) and transmission electron microscopy (TEM). The quantum efficiency and I-V characteristic are measured for the IMM GaInP/GaAs/In0.3Ga0.7As solar cells, as well as for the conventional triple-junction solar cell based on Ge substrate (GaInP/GaAs/Ge). The efficiency of the designed cell with an area of 10.922 cm2 is 32.64% (AM0, 25 ℃), which is 3% higher than the conventional GaInP/GaAs/Ge triple junction solar cell.
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Keywords:
- solar cell /
- triple junction /
- inverted metamorphic structure
[1] Meusel M, Bensch W, Bergunde T, Kern R, Khorenko V, Köstler W, LaRoche G, Torunski T, Zimmermann W, Strobl G 2007 Proceedings of the 22nd European Photovoltaic Solar Energy Conference Milan, Italy, September 3-7 2007 p16
[2] Chen M B, Cui R Q, Wang L X, Zhang Z W, Lu J F, Chi W Y 2004 Acta Phys. Sin. 53 3632 (in Chinese) [陈鸣波, 崔容强, 王亮兴, 张忠卫, 陆剑峰, 池卫英 2004 53 3632]
[3] Stan M, Aiken D, Cho B, Cornfeld A, Diaz J, Ley V, Korostyshevsky A, Patel P, Sharps P, Varghese T 2008 J. Cryst. Growth 310 5204
[4] King R R, Fetzer C M, Law D C, Edmondson K M, Yoon H, Kinsey G S, Krut D D, Ermer J H, Hebert P, Cavicchi B T 2006 Photovoltaic Energy Conversion Conference Record of the 2006 IEEE 4th World Conference: IEEE Waikoloa, USA, May 7-12, 2006 p1757
[5] Shan W, Walukiewicz W, Ager I J, Haller E, Geisz J, Friedman D, Olson J, Kurtz S R 1999 Phys. Rev. Lett. 82 1221
[6] Ptak A, Kurtz S, Johnston S, Friedman D, Geisz J, Olson J, McMahon W, Kibbler A, Kramer C, Young M 2003 National Center for Photovoltaics and Solar Program Review Meeting Denver, USA, March 24-26, 2003 p24
[7] Geisz J, Kurtz S, Wanlass M, Ward J, Duda A, Friedman D, Olson J, McMahon W, Moriarty T, Kiehl J 2007 Appl. Phys. Lett. 91 023502
[8] Cornfeld A B, Stan M, Varghese T, Diaz J, Ley A V, Cho B, Korostyshevsky A, Aiken D J, Sharps PR 2008 Photovoltaic Specialists Conference (PVSC), 33rd IEEE San Diego, USA, May 11-16, 2008 p1
[9] Zhang Y Q, Cai J J, Zhang S X, Zhang Y, Lin Z Y, Wang X w, Chen K J 2012 Research & Progress of SSE 30 469 (in Chinese) [张银桥, 蔡建九, 张双翔, 张永, 林志园, 王向武, 陈开建 2010 固体电子学研究与进展 30 469]
[10] Chang K H, Gilbala R, Srolovitz D J, Bhattacharya P K, Mansfield J F 1990 J. Appl. Phys. 67 4093
[11] Yoon H, Haddad M, Mesropian S, Yen J, Edmondson K, Law D, King R R, Bhusari D, Boca A, Karam N H 2008 Photovoltaic Specialists Conference(PVSC), 33rd IEEE San Diego, USA, May 11-16, 2008 p1
[12] King R R, Sherif R A, Kinsey G S, Kurtz S, Fetzer C, Edmondson K, Law D, Cotal H, Krut D, Ermer J, Karam N H 2005 International Conference on solar concentrators for the Generationof Electricity or Hydrogen Arizona, USA, May 1-5, 2005 p30
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[1] Meusel M, Bensch W, Bergunde T, Kern R, Khorenko V, Köstler W, LaRoche G, Torunski T, Zimmermann W, Strobl G 2007 Proceedings of the 22nd European Photovoltaic Solar Energy Conference Milan, Italy, September 3-7 2007 p16
[2] Chen M B, Cui R Q, Wang L X, Zhang Z W, Lu J F, Chi W Y 2004 Acta Phys. Sin. 53 3632 (in Chinese) [陈鸣波, 崔容强, 王亮兴, 张忠卫, 陆剑峰, 池卫英 2004 53 3632]
[3] Stan M, Aiken D, Cho B, Cornfeld A, Diaz J, Ley V, Korostyshevsky A, Patel P, Sharps P, Varghese T 2008 J. Cryst. Growth 310 5204
[4] King R R, Fetzer C M, Law D C, Edmondson K M, Yoon H, Kinsey G S, Krut D D, Ermer J H, Hebert P, Cavicchi B T 2006 Photovoltaic Energy Conversion Conference Record of the 2006 IEEE 4th World Conference: IEEE Waikoloa, USA, May 7-12, 2006 p1757
[5] Shan W, Walukiewicz W, Ager I J, Haller E, Geisz J, Friedman D, Olson J, Kurtz S R 1999 Phys. Rev. Lett. 82 1221
[6] Ptak A, Kurtz S, Johnston S, Friedman D, Geisz J, Olson J, McMahon W, Kibbler A, Kramer C, Young M 2003 National Center for Photovoltaics and Solar Program Review Meeting Denver, USA, March 24-26, 2003 p24
[7] Geisz J, Kurtz S, Wanlass M, Ward J, Duda A, Friedman D, Olson J, McMahon W, Moriarty T, Kiehl J 2007 Appl. Phys. Lett. 91 023502
[8] Cornfeld A B, Stan M, Varghese T, Diaz J, Ley A V, Cho B, Korostyshevsky A, Aiken D J, Sharps PR 2008 Photovoltaic Specialists Conference (PVSC), 33rd IEEE San Diego, USA, May 11-16, 2008 p1
[9] Zhang Y Q, Cai J J, Zhang S X, Zhang Y, Lin Z Y, Wang X w, Chen K J 2012 Research & Progress of SSE 30 469 (in Chinese) [张银桥, 蔡建九, 张双翔, 张永, 林志园, 王向武, 陈开建 2010 固体电子学研究与进展 30 469]
[10] Chang K H, Gilbala R, Srolovitz D J, Bhattacharya P K, Mansfield J F 1990 J. Appl. Phys. 67 4093
[11] Yoon H, Haddad M, Mesropian S, Yen J, Edmondson K, Law D, King R R, Bhusari D, Boca A, Karam N H 2008 Photovoltaic Specialists Conference(PVSC), 33rd IEEE San Diego, USA, May 11-16, 2008 p1
[12] King R R, Sherif R A, Kinsey G S, Kurtz S, Fetzer C, Edmondson K, Law D, Cotal H, Krut D, Ermer J, Karam N H 2005 International Conference on solar concentrators for the Generationof Electricity or Hydrogen Arizona, USA, May 1-5, 2005 p30
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