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Transfer-Imprinting-Assisted Growth of 2D/3D Perovskite Heterojunction for Efficient and Stable Flexible Inverted Perovskite Solar Cells
Nano Letters ( IF 9.6 ) Pub Date : 2023-06-30 , DOI: 10.1021/acs.nanolett.3c01614
Nairong Jiang 1 , Han-Wen Zhang 1 , Yue-Feng Liu 1 , Yi-Fan Wang 1 , Da Yin 1 , Jing Feng 1
Nano Letters ( IF 9.6 ) Pub Date : 2023-06-30 , DOI: 10.1021/acs.nanolett.3c01614
Nairong Jiang 1 , Han-Wen Zhang 1 , Yue-Feng Liu 1 , Yi-Fan Wang 1 , Da Yin 1 , Jing Feng 1
Affiliation
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2D/3D perovskite heterostructures show great potential to boost efficiency and stability of perovskite solar cells (PSCs). Here, a solvent-free transfer-imprinting-assisted growth (TIAG) method is employed to in situ grow 2D/3D perovskite heterojunctions. The solid-state transfer of spacer cation by the TIAG process enables a spatially confined growth of the 2D perovskite interlayer with uniform morphology between the 3D perovskites and charge transport layer. Meanwhile, the pressure associated with the TIAG process promotes the crystalline orientation, which is beneficial to carrier transport. As a result, the inverted PSC achieved a PCE of 23.09% (with certified 22.93%) and maintained 90% of their initial PCE after aging at 85 °C for 1200 h or operating for 1100 h under continuous AM 1.5 illumination. Flexible inverted PSCs achieved a PCE of 21.14% with mechanical robustness by maintaining above 80% of their initial PCE after 10000 bending cycles under a 3 mm bending radius.
中文翻译：
转移压印辅助生长 2D/3D 钙钛矿异质结，用于高效稳定的柔性倒置钙钛矿太阳能电池
2D/3D 钙钛矿异质结构显示出提高钙钛矿太阳能电池（PSC）效率和稳定性的巨大潜力。在这里，采用无溶剂转移压印辅助生长（TIAG）方法原位生长 2D/3D 钙钛矿异质结。通过 TIAG 工艺实现间隔阳离子的固态转移，使得 2D 钙钛矿中间层能够在空间上受限生长，并且在 3D 钙钛矿和电荷传输层之间具有均匀的形态。同时，与TIAG工艺相关的压力促进了晶体取向，这有利于载流子传输。结果，倒置 PSC 的 PCE 达到了 23.09%（经认证为 22.93%），并且在 85 °C 老化 1200 小时或在连续 AM 1.5 照明下运行 1100 小时后仍保持其初始 PCE 的 90%。柔性倒置 PSC 的 PCE 达到 21。
更新日期：2023-06-30
中文翻译：
转移压印辅助生长 2D/3D 钙钛矿异质结，用于高效稳定的柔性倒置钙钛矿太阳能电池
2D/3D 钙钛矿异质结构显示出提高钙钛矿太阳能电池（PSC）效率和稳定性的巨大潜力。在这里，采用无溶剂转移压印辅助生长（TIAG）方法原位生长 2D/3D 钙钛矿异质结。通过 TIAG 工艺实现间隔阳离子的固态转移，使得 2D 钙钛矿中间层能够在空间上受限生长，并且在 3D 钙钛矿和电荷传输层之间具有均匀的形态。同时，与TIAG工艺相关的压力促进了晶体取向，这有利于载流子传输。结果，倒置 PSC 的 PCE 达到了 23.09%（经认证为 22.93%），并且在 85 °C 老化 1200 小时或在连续 AM 1.5 照明下运行 1100 小时后仍保持其初始 PCE 的 90%。柔性倒置 PSC 的 PCE 达到 21。
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