All-Back-Contact Perovskite Solar Cells Using Cracked Film Lithography
All-Back-Contact Perovskite Solar Cells Using Cracked Film Lithography
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DOI：
10.1021/acsaem.2c01298
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发表时间：
2022-07-25
影响因子：
6.4
通讯作者：
Wheeler, Lance M.
中科院分区：
文献类型：
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作者：
Prince, Kevin J.;Muzzillo, Christopher P.;Wheeler, Lance M.
与传统的平面器件架构相比，全背接触钙钛矿太阳能电池具有更高的功率转换效率。然而，迄今为止性能最好的设备使用光刻法来制造电极，这对于部署和研究设施来说是昂贵的。在这里，我们利用裂膜光刻，一种溶液处理的微图案化技术，形成一个互连的，缺陷容忍的背接触电极网络。我们引入了一种裂缝加宽技术来控制光学透明度和薄层电阻，同时解耦背接触网络中电子和空穴接触的相对面积。更宽的裂缝增加了空穴选择性接触的面积，这增加了光电流和功率转换效率。
All-back-contact perovskite solar cells promise greater power conversion efficiency compared to conventional planar device architectures. However, the best-performing devices to date use photolithography to fabricate electrodes, which is expensive for deployment and a barrier for research facilities. Herein, we utilize cracked film lithography, a solution-processed micropatterning technique, to form an interconnected, defect-tolerant back-contact electrode network. We introduce a crack widening technique to control the optical transparency and sheet resistance while decoupling the relative areas of the electron and hole contacts in the back-contact network. Wider cracks increase the area of the hole-selective contact, which increases photocurrent and power conversion efficiency.