40% efficient metamorphic GaInP/GaInAs/Ge multijunction solar cells
40% efficient metamorphic GaInP/GaInAs/Ge multijunction solar cells
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DOI：
10.1063/1.2734507
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发表时间：
2007-04-30
影响因子：
4
通讯作者：
Karam, N. H.
中科院分区：
文献类型：
--
作者：
King, R. R.;Law, D. C.;Karam, N. H.
对于变质三结GaInP/GaInAs/Ge电池，在240个太阳的地面聚光太阳能电池的标准光谱（24.0 W/cm（2），AM 1.5D，低气溶胶光学厚度，25摄氏度）下测量并独立确认了40.7%的效率。这是太阳能电池效率超过40%的初步演示，也是迄今为止任何类型光伏器件所实现的最高太阳能转换效率。晶格匹配的聚光电池现在已经达到40.1%的效率。电子空穴复合机制进行了分析，在变质GaxIn 1-xAs和GaxIn 1-xP材料，和基本的功率损耗进行量化，以确定更高的效率的路径。(c)2007年，美国物理学会。
An efficiency of 40.7% was measured and independently confirmed for a metamorphic three-junction GaInP/GaInAs/Ge cell under the standard spectrum for terrestrial concentrator solar cells at 240 suns (24.0 W/cm(2), AM1.5D, low aerosol optical depth, 25 degrees C). This is the initial demonstration of a solar cell with over 40% efficiency, and is the highest solar conversion efficiency yet achieved for any type of photovoltaic device. Lattice-matched concentrator cells have now reached 40.1% efficiency. Electron-hole recombination mechanisms are analyzed in metamorphic GaxIn1-xAs and GaxIn1-xP materials, and fundamental power losses are quantified to identify paths to still higher efficiencies. (c) 2007 American Institute of Physics.