High Efficiency Multijunction Photovoltaic Development
High Efficiency Multijunction Photovoltaic Development
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DOI：
10.1021/ie3012616
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发表时间：
2012-09
影响因子：
4.2
通讯作者：
D. Wilt;M. Stan
中科院分区：
文献类型：
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作者：
D. Wilt;M. Stan
在过去的60年里，光伏能量转换在性能方面取得了显着的进步。在过去的20年里，随着研究人员从元素半导体转向越来越复杂的材料和设备，太阳能电池效率的变化率实际上有所增加。此外，材料质量和沉积技术的显著改进进一步推动了器件性能的显著改善。从硅到III-V族化合物半导体材料的多样化使得能够开发具有3、4甚至6个子电池的多结太阳能电池，以实现更高的转换效率。对于1个太阳的空间应用，这些III-V多结电池表现出超过35%的效率，而在陆地集中阳光条件下，效率> 42%。本文将讨论高效率III-V多结太阳能电池的发展，重点是最近开发的变形器件结构和新型晶格结构。
Photovoltaic energy conversion has demonstrated remarkable improvements in performance over the past 60 years. The rate of solar cell efficiency change has actually increased over the past 20 years as researchers have moved beyond elemental semiconductors to increasingly more sophisticated materials and devices. In addition, significant improvements in materials quality and deposition technology have further fueled this dramatic improvement in device performance. Diversifying from silicon to III–V compound semiconductor materials has enabled the development of multijunction solar cells with 3, 4, and even 6 subcells to achieve ever higher conversion efficiency. For 1-sun space application(s), these III–V multijunction cells are demonstrating ∼35% efficiency, while under terrestrial concentrated sunlight conditions efficiencies are >42%. This Article will discuss the development of high efficiency III–V multijunction solar cells, focusing on recently developed metamorphic device structures and novel lattic...