期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 5, 期 3, 页码 6225-6232出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee02843c
关键词
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资金
- ANR (THRI-PV)
- Global Climate and Energy Program (Hot Carrier Solar Cells project)
GaSb-based heterostructures are tested as candidates for a hot carrier solar cell absorber. Their thermalisation properties are investigated using continuous wave photoluminescence. Non-equilibrium carrier populations are detected at high excitation levels. An empirical expression of the power lost by thermalisation is deduced from the incident power dependent carrier temperature. The experimentally determined thermalisation rate is then used to simulate the potential efficiency of a hot carrier solar cell, showing a significant efficiency improvement compared to a fully thermalised single p-n junction of similar bandgap.
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