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Precisely Tailoring a FAPbI3-Derived Ferroelectric for Sensitive Self-Driven Broad-Spectrum Polarized Photodetection
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-01-11 , DOI: 10.1021/jacs.2c12300 Zhijin Xu 1 , Xin Dong 1 , Lei Wang 1 , Huajie Wu 1 , Yi Liu 1, 2 , Junhua Luo 1, 2, 3 , Maochun Hong 1, 2, 3 , Lina Li 1, 2, 3
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-01-11 , DOI: 10.1021/jacs.2c12300 Zhijin Xu 1 , Xin Dong 1 , Lei Wang 1 , Huajie Wu 1 , Yi Liu 1, 2 , Junhua Luo 1, 2, 3 , Maochun Hong 1, 2, 3 , Lina Li 1, 2, 3
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Benefiting from superior semiconducting properties and the angle-dependence of the bulk photovoltaic effect (BPVE) on polarized light, the two-dimensional (2D) hybrid perovskite ferroelectrics are developed for sensitive self-powered polarized photodetection. Most of the currently reported ferroelectric-driven polarized photodetection is restricted to the shortwave optical response, and expanding the response range is urgently needed. Here we report the first instance of a FAPbI3-derived (2D) perovskite ferroelectric, (BA)2(FA)Pb2I7 (1, BA is n-butylammonium, FA is formamidinium). It exhibited a notably high thermostability and broad-spectrum adsorption extending to around 650 nm. Significantly, 1 demonstrated ferroelectricity-driven self-powered polarized photodetection under 637 nm with an anisotropic photocurrent ratio of ∼1.96, ultrahigh detectivity of 3.34 × 1012 Jones, and long-term repetition. This research will shed light on the development of new ferroelectrics for potential application in broad-spectrum polarization-based optoelectronics.
中文翻译：
精确定制 FAPbI3 衍生的铁电体用于灵敏的自驱动广谱偏振光检测
得益于优异的半导体性能和体光伏效应 (BPVE) 对偏振光的角度依赖性，二维 (2D) 混合钙钛矿铁电体被开发用于灵敏的自供电偏振光检测。目前报道的铁电驱动偏振光电探测大多局限于短波光学响应，急需扩大响应范围。在这里，我们报告了 FAPbI 3衍生的 (2D) 钙钛矿铁电体 (BA) 2 (FA)Pb 2 I 7 ( 1 , BA 是n-丁基铵，FA 为甲脒）。它表现出非常高的热稳定性和延伸至约 650 nm 的广谱吸附。值得注意的是，1展示了 637 nm 下铁电驱动的自供电偏振光电探测，各向异性光电流比为 ∼1.96，超高探测率为 3.34 × 10 12琼斯，并且具有长期重复性。这项研究将揭示新型铁电体在广谱偏振光电子学中的潜在应用的发展。
更新日期：2023-01-11
中文翻译：
精确定制 FAPbI3 衍生的铁电体用于灵敏的自驱动广谱偏振光检测
得益于优异的半导体性能和体光伏效应 (BPVE) 对偏振光的角度依赖性，二维 (2D) 混合钙钛矿铁电体被开发用于灵敏的自供电偏振光检测。目前报道的铁电驱动偏振光电探测大多局限于短波光学响应，急需扩大响应范围。在这里，我们报告了 FAPbI 3衍生的 (2D) 钙钛矿铁电体 (BA) 2 (FA)Pb 2 I 7 ( 1 , BA 是n-丁基铵，FA 为甲脒）。它表现出非常高的热稳定性和延伸至约 650 nm 的广谱吸附。值得注意的是，1展示了 637 nm 下铁电驱动的自供电偏振光电探测，各向异性光电流比为 ∼1.96，超高探测率为 3.34 × 10 12琼斯，并且具有长期重复性。这项研究将揭示新型铁电体在广谱偏振光电子学中的潜在应用的发展。
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