Haoming Yan

1 month ago | mdpi.com | Daojun Gong |Haoming Yan |Ming Wu |Yimin Wang

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Oct 14, 2024 | nature.com | Rui Su |RUI ZHU |Deying Luo |Pengru Huang |Linjie Dai |Pietro Caprioglio | +16 more

AbstractObtaining micron-thick perovskite films of high quality is key to realizing efficient and stable positive (p)-intrinsic (i)-negative (n) perovskite solar cells1,2, but it remains a critical challenge. Here, we report an effective method for producing high-quality, micron-thick formamidinium-based perovskite films by forming coherent grain boundaries, where high-Miller-index-oriented grains grow on the low-Miller-index-oriented grains in a stabilized atmosphere.