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Toward All-Vacuum-Processable Perovskite Solar Cells with High Efficiency, Stability, and Scalability Enabled by Fluorinated Spiro-OMeTAD through Thermal Evaporation
Solar RRL ( IF 6.0 ) Pub Date : 2021-07-27 , DOI: 10.1002/solr.202100415 Yunseong Choi 1 , Donghwan Koo 1 , Mingyu Jeong 2 , Gyujeong Jeong 1 , Junghyun Lee 1 , Byongkyu Lee 2 , Kyoung Jin Choi 3 , Changduk Yang 2 , Hyesung Park 1
Solar RRL ( IF 6.0 ) Pub Date : 2021-07-27 , DOI: 10.1002/solr.202100415 Yunseong Choi 1 , Donghwan Koo 1 , Mingyu Jeong 2 , Gyujeong Jeong 1 , Junghyun Lee 1 , Byongkyu Lee 2 , Kyoung Jin Choi 3 , Changduk Yang 2 , Hyesung Park 1
Affiliation
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Developing scalable technologies in perovskite solar cells (PSCs), including the deposition of uniform perovskite photoactive layers and charge transport layers, is critical for successfully migrating the recently developed advances in the PSC community toward industrialization. Herein, efficient and stable large-area PSCs using vacuum-deposited fluorinated analogue Spiro-OMeTAD (Spiro-mF) and methylammonium lead iodide (MAPbI3) as hole transport and absorber layers, respectively, are demonstrated. The vacuum-deposited Spiro-mF exhibits improved crystallinity compared with the solution-processed counterpart through the enhanced molecular orientation along the π–π stacking direction, promoting the charge transport characteristics. Also, its uniform surface morphology contributes to the better quality crystallinity of the overlying perovskite film, which altogether leads to improved device performance and operational stability. Moreover, the all-vacuum deposition process allows the fabrication of large-area (250 mm2) and scalable (75 × 75 mm2) PSCs with excellent reliability in device performance.
中文翻译：
氟化 Spiro-OMeTAD 通过热蒸发实现具有高效率、稳定性和可扩展性的全真空可加工钙钛矿太阳能电池
在钙钛矿太阳能电池 (PSC) 中开发可扩展的技术，包括均匀钙钛矿光敏层和电荷传输层的沉积，对于成功将 PSC 社区最近开发的进展向工业化迁移至关重要。在此，展示了分别使用真空沉积的氟化类似物 Spiro-OMeTAD (Spiro- m F) 和甲基碘化铅 (MAPbI 3 ) 作为空穴传输层和吸收层的高效和稳定的大面积 PSC 。与溶液处理的对应物相比，真空沉积的 Spiro- m F 通过增强沿π-π 的分子取向表现出更高的结晶度堆叠方向，促进电荷传输特性。此外，其均匀的表面形态有助于上覆钙钛矿薄膜的更好结晶度，从而提高器件性能和操作稳定性。此外，全真空沉积工艺允许制造大面积（250 mm 2）和可扩展（75 × 75 mm 2）PSC，具有出色的器件性能可靠性。
更新日期：2021-09-09
中文翻译：
氟化 Spiro-OMeTAD 通过热蒸发实现具有高效率、稳定性和可扩展性的全真空可加工钙钛矿太阳能电池
在钙钛矿太阳能电池 (PSC) 中开发可扩展的技术，包括均匀钙钛矿光敏层和电荷传输层的沉积，对于成功将 PSC 社区最近开发的进展向工业化迁移至关重要。在此，展示了分别使用真空沉积的氟化类似物 Spiro-OMeTAD (Spiro- m F) 和甲基碘化铅 (MAPbI 3 ) 作为空穴传输层和吸收层的高效和稳定的大面积 PSC 。与溶液处理的对应物相比，真空沉积的 Spiro- m F 通过增强沿π-π 的分子取向表现出更高的结晶度堆叠方向，促进电荷传输特性。此外，其均匀的表面形态有助于上覆钙钛矿薄膜的更好结晶度，从而提高器件性能和操作稳定性。此外，全真空沉积工艺允许制造大面积（250 mm 2）和可扩展（75 × 75 mm 2）PSC，具有出色的器件性能可靠性。
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