A novel model of the solar-driven intermediate band thermoradiative device consisting of a solar concentrator, an absorber, an intermediate band thermoradiative cell and an optical filter is proposed. The formulas of the power output density and efficiency are derived analytically. The device performances are optimized and the parametric selection criteria are provided. The maximum efficiency of the device operating in the optimal state reaches 23.1% and increases of 25.5% if compared with that of a thermoradiative solar cell without the intermediate band. It means that the intermediate band has a great effect on the systemic performance improvement. It is very significant to find that the proposed device can attain a large efficiency under a low concentration factor and the performance of the device is much better than that of the normal thermoradiative solar cell without the intermediate band and optical filter. Solar-driven intermediate band thermoradiative devices are worthy of research and development.

提出了一种新型的太阳能驱动中频热辐射装置，该装置由太阳能集中器，吸收器，中频热辐射电池和滤光器组成。通过分析得出功率输出密度和效率的公式。优化了设备性能，并提供了参数选择标准。与没有中间带的热辐射太阳能电池相比，在最佳状态下运行的设备的最大效率达到23.1％，并且提高了25.5％。这意味着中间带对系统性能的改善有很大的影响。非常重要的是，发现所提出的装置可以在低集中系数下获得高效率，并且该装置的性能比没有中间带和滤光片的普通热辐射太阳能电池要好得多。太阳能驱动的中频带热辐射装置值得研究和开发。