GaSb 电池热控温度与辐射源温度的匹配性分析

The low-efficiency thermophotovoltaic conversion is an important reason restricting the further development and application of thermal photovoltaic power generation. To break through this barrier and improve energy conversion efficiency, this work takes the GaSb cell as the research object, utilizes semiconductor physics and Planck thermal radiation theory, and explores using blackbody as a radiation source, with the temperature set at 1000 K, 1500 K, 2000 K, 2500 K, 3000 K, and spectral ranges between 0.4͂2.0 µm. Obtaining changes in performance parameters and energy conversion efficiency of GaSb cell with a temperature range of 0͂200^◦C. Determine the optimal matching temperature between the cell and the radiation source under thermal control temperature within a specific spectral range based on changes in physical parameters. The results indicate that the thermoelectric conversion performance of batteries varies at different thermal control temperatures; When the battery thermal control temperature is 0͂110 ^◦C, the optimal black-body radiation source temperature is 2000 K. When the cell thermal control temperature is 110͂200^◦C, the radiation source temperature should be kept at 2500 K.