The organic solar cell has attracted much interest due to its high power conversion efficiency and low cost. This paper studies the interlaminar stresses between the working layer and the substrate of the organic solar cell. The effects of solar irradiation and wind speed have been considered as well. The multilayered film model and the thin film–substrate model are employed separately in reaction to the different magnitude of the film and substrate thickness. Both models straightforwardly show the dangerous stress areas at the two ends of the working layer. Numerical examples reveal that the interlaminar stress increases as the solar irradiation increases while decreases with the wind speed increasing. A thicker working layer of the organic solar cell results in larger interlaminar stresses. The critical value of sunlight irradiation for varying external environment is predicted. The critical value of sunlight irradiation at the wind speed of V_f = 15 m/s increases by nearly 20%, compared with that of the wind speed V_f = 5 m/s. In addition, the effect of the equivalent thermal expansion coefficient of the working layer on the interlaminar stress is also explored.

有机太阳能电池由于其高功率转换效率和低成本而引起了很多兴趣。本文研究了有机太阳能电池工作层与基板之间的层间应力。还考虑了太阳辐射和风速的影响。多层膜模型和薄膜-基底模型分别用于对不同大小的膜和基底厚度进行反应。两种模型都直接显示了工作层两端的危险应力区域。数值算例表明，层间应力随着太阳辐射的增加而增加，而随着风速的增加而减小。有机太阳能电池的较厚的工作层导致较大的层间应力。预测了在变化的外部环境下阳光照射的临界值。风速下太阳光照射的临界值 与风速V _f  = 5 m / s相比，V _f = 15 m / s增加了近20％。另外，还研究了工作层的等效热膨胀系数对层间应力的影响。