Application of a SiGe Multi-Quantum Well Grown by UHV-CVDfor Thermophotovoltaic Cells
UHV-CVD生长的SiGe多量子阱在热光电池领域的应用

To verify the direct-gap transition of a SiGe multi-quantum well and grope for its application in thermophotovoltaic cells,a high quality SiGe multi-quantum well is grown by our UHV-CVDII system.The absorption measurement of the SiGe multi-quantum well by multiple internal reflection indicates that the extension of the absorption is up to 1450nm and transition probability caused by the quantum effect in the quantum well of strained SiGe thin layer is higher.Consequently,the absorption efficiency of thermophotovoltaic cells will be increased significantly.