Conversion efficiency limits and optimized designs for tandem solar cells with realistic sub-cell material quality
作者： Lin Zhu , Toshimitsu Mochizuki , Masahiro Yoshita , Shaoqiang Chen , Shintaroh Sato
DOI: 10.1109/PVSC.2014.6925662
关键词: Analytical chemistry 、 Geometric mean 、 Theory of solar cells 、 Hybrid solar cell 、 INT 、 Solar cell efficiency 、 Physics 、 Optoelectronics 、 Tandem 、 Energy conversion efficiency 、 Luminescence
摘要: To examine practical efficiency limits of tandem solar cells, we calculated conversion (η sc ) and optimized sub-cell band-gap energies (E g in 1-, 2-, 3-, 4-, 5-junction cells via a detailed-balance theory, taking account the realistic internal luminescence quantum yields (y int materials. We found that η drastically decreases as geometric mean y * all sub-cells' drops from 1 to 0.1, proportionally logy low-y region. Even with moderate material quality = 0.001, above 30% (35%) should be still available 2-junction (3-junction) though need designs much higher E than those known for ideal cases 1.
sci-hub.se 参考文章(20)
Martin A. Green, Radiative efficiency of state‐of‐the‐art photovoltaic cells Progress in Photovoltaics. ,vol. 20, pp. 472- 476 ,(2012) , 10.1002/PIP.1147
Andrew S Brown, Martin A Green, Detailed balance limit for the series constrained two terminal tandem solar cell Physica E-low-dimensional Systems & Nanostructures. ,vol. 14, pp. 96- 100 ,(2002) , 10.1016/S1386-9477(02)00364-8
I. Tobías, A. Luque, Ideal efficiency of monolithic, series‐connected multijunction solar cells Progress in Photovoltaics. ,vol. 10, pp. 323- 329 ,(2002) , 10.1002/PIP.427
Owen D. Miller, Eli Yablonovitch, Sarah R. Kurtz, Strong Internal and External Luminescence as Solar Cells Approach the Shockley–Queisser Limit IEEE Journal of Photovoltaics. ,vol. 2, pp. 303- 311 ,(2012) , 10.1109/JPHOTOV.2012.2198434
I. Schnitzer, E. Yablonovitch, C. Caneau, T. J. Gmitter, Ultrahigh spontaneous emission quantum efficiency, 99.7% internally and 72% externally, from AlGaAs/GaAs/AlGaAs double heterostructures Applied Physics Letters. ,vol. 62, pp. 131- 133 ,(1993) , 10.1063/1.109348
Owen Miller, Eli Yablonovitch, Detailed Balance Solar Cell Efficiency Limits for Internal Fluorescence Yield Slightly Less than 100 Imaging and Applied Optics Congress (2010), paper SWD5. ,(2010) , 10.1364/OSE.2010.SWD5
Lin Zhu, Changsu Kim, Masahiro Yoshita, Shaoqiang Chen, Shintaroh Sato, Toshimitsu Mochizuki, Hidefumi Akiyama, Yoshihiko Kanemitsu, Impact of sub-cell internal luminescence yields on energy conversion efficiencies of tandem solar cells: A design principle Applied Physics Letters. ,vol. 104, pp. 031118- ,(2014) , 10.1063/1.4861464
Antonio Martí, Gerardo L. Araújo, Limiting efficiencies for photovoltaic energy conversion in multigap systems Solar Energy Materials and Solar Cells. ,vol. 43, pp. 203- 222 ,(1996) , 10.1016/0927-0248(96)00015-3
H. R. Philipp, H. Ehrenreich, Optical Properties of Semiconductors Physical Review. ,vol. 129, pp. 1550- 1560 ,(1963) , 10.1103/PHYSREV.129.1550
William Shockley, Hans J. Queisser, Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells Journal of Applied Physics. ,vol. 32, pp. 510- 519 ,(1961) , 10.1063/1.1736034