Herein, a device modeling of graphene–perovskite Schottky junction solar cells is conducted by AFORS‐HET package. It is found that the back and front contact work function (WF) and the absorber doping concentration have important effects on cell performance. The front contact with a high WF of 5.4 eV is suggested to form the desired Schottky junction, which contributes to better efficiency. Back contact WF lower than 4.2 eV is desired to form ohmic contact. Appropriate doping concentration (10¹⁶ cm⁻³) of perovskite favors the efficiency improvement. Under the optimal conditions, the graphene–perovskite Schottky solar cells can obtain a conversion efficiency up to 21.13%, but at a lower cost and much simpler structure comparable with the planar heterojunction perovskite solar cells. These results can provide guidance for further performance improvement of perovskite‐based Schottky solar cells.

中文翻译：

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一种增强石墨烯-钙钛矿肖特基太阳能电池性能的计算方法

本文中，通过AFORS-HET封装进行了石墨烯-钙钛矿肖特基结太阳能电池的器件建模。发现背面和正面接触功函数（WF）和吸收剂掺杂浓度对电池性能具有重要影响。建议使用具有5.4 eV的高WF的前触点来形成所需的肖特基结，这有助于提高效率。需要低于4.2eV的背接触WF以形成欧姆接触。适当的掺杂浓度（10 ¹⁶  cm ^-3钙钛矿有助于提高效率。在最佳条件下，石墨烯-钙钛矿型肖特基太阳能电池可获得高达21.13％的转换效率，但与平面异质结钙钛矿型太阳能电池相比，其成本更低，结构更简单。这些结果可为进一步改进基于钙钛矿的肖特基太阳能电池的性能提供指导。