A new hybrid system mainly composed of a dye-sensitized solar cell (DSSC), a solar selective absorber (SSA) and an absorption heat transformer (AHT) is theoretically put forward to harness the long wavelength sunlight transmitted through the DSSC. The models of both DSSC and AHT are adopted from the current literature and the condition enables the AHT to involve in heat upgrading is obtained. The model validations of DSSC and AHT are conducted using experimental data. Mathematical expressions of power output and efficiency for the hybrid system are formulated by taking a variety of irreversible losses into account. The effectiveness of the hybrid system is justified and evaluated. Maximum power density (MPD) and maximum energy efficiency (MEE) of the integrated system are, respectively, 158.2 W m⁻² and 16.3 %, having evidently improvement compared to that of a single DSSC. A variety of operating conditions and design parameters affecting the hybrid system performance are studied. Numerical calculation results show that the working temperature, photoelectron absorption coefficient of DSSC and total heat-transfer area of the AHT have positive effects on the hybrid system performance. There exists an optimum TiO₂ thin film thickness to optimize the hybrid system performance. However, a greater Schottky barrier has negative influence on the hybrid system performance. The results obtained here may provide some guidance for designing such a practical hybrid system.

理论上提出了一种新的混合系统，主要由染料敏化太阳能电池（DSSC），太阳能选择性吸收剂（SSA）和吸收热转换器（AHT）组成，以利用通过DSSC传输的长波长太阳光。从现有文献中采用了DSSC和AHT的模型，并获得了使AHT参与热量提升的条件。DSSC和AHT的模型验证是使用实验数据进行的。混合动力系统的功率输出和效率的数学表达式是通过考虑各种不可逆的损失来表述的。混合系统的有效性是合理的和评估的。集成系统的最大功率密度（MPD）和最大能效（MEE）分别为158.2 W m ^-2和16.3％，与单个DSSC相比有明显改善。研究了影响混合动力系统性能的各种运行条件和设计参数。数值计算结果表明，工作温度，DSSC的光电子吸收系数和AHT的总传热面积对混合动力系统性能有积极影响。存在最佳的TiO ₂薄膜厚度以优化混合系统的性能。但是，更大的肖特基势垒对混合动力系统的性能有负面影响。此处获得的结果可为设计这种实用的混合动力系统提供一些指导。