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X-ray-Induced Pyroelectric Effect in a Perovskite Ferroelectric Drives Low Detection Limit Self-Powered Responses
ACS Central Science ( IF 12.7 ) Pub Date : 2023-12-11 , DOI: 10.1021/acscentsci.3c01274 Yu Ma 1, 2 , Wenjing Li 1, 2 , Yi Liu 1 , Wuqian Guo 1, 2 , Haojie Xu 1, 2 , Shiguo Han 1 , Liwei Tang 1 , Qingshun Fan 1, 2 , Junhua Luo 1, 2 , Zhihua Sun 1, 2
ACS Central Science ( IF 12.7 ) Pub Date : 2023-12-11 , DOI: 10.1021/acscentsci.3c01274 Yu Ma 1, 2 , Wenjing Li 1, 2 , Yi Liu 1 , Wuqian Guo 1, 2 , Haojie Xu 1, 2 , Shiguo Han 1 , Liwei Tang 1 , Qingshun Fan 1, 2 , Junhua Luo 1, 2 , Zhihua Sun 1, 2
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The light-induced pyroelectric effect (LPE) has shown a great promise in the application of optoelectronic devices, especially for self-powered detection and imaging. However, it is quite challenging and scarce to achieve LPE in the X-ray region. For the first time, we report X-ray LPE in a single-phase ferroelectric of (NPA)2(EA)2Pb3Br10 (1, NPA = neopentylamine, EA = ethylamine), adopting a two-dimensional trilayered perovskite motif, which has a large spontaneous polarization of ∼3.7 μC/cm2. Its ferroelectricity allows for significant LPE in the wavelength range of ordinary visible light. Strikingly, the X-ray LPE is observed in 1, which endows remarkable self-powered X-ray responses at 0 bias, including sensitivity up to 225 μC Gy–1 cm–2 and a low detection limit of ∼83.4 nGy s–1, being almost 66 times lower than the requirement for medical diagnostics (∼5.5 μGy s–1). This work not only develops a new mode for X-ray detection but also provides valuable insights for future photoelectric device application.
中文翻译：
钙钛矿铁电体中的 X 射线诱导热释电效应驱动低检测限自供电响应
光致热释电效应（LPE）在光电器件的应用中显示出了巨大的前景，特别是在自供电检测和成像方面。然而，在X射线区域实现LPE非常具有挑战性且稀缺。我们首次报道了 (NPA) 2 (EA) 2 Pb 3 Br 10 （ 1 ，NPA = 新戊胺，EA = 乙胺）单相铁电体中的 X 射线 LPE，采用二维三层钙钛矿图案，其具有~3.7 μC/cm 2的大自发极化。其铁电性允许在普通可见光的波长范围内产生显着的 LPE。引人注目的是，在1中观察到了 X 射线 LPE，它在 0 偏置下具有显着的自供电 X 射线响应，包括高达 225 μC Gy –1 cm –2的灵敏度和~83.4 nGy s –1的低检测限，比医疗诊断要求 (∼5.5 μGy s –1 ) 低近 66 倍。这项工作不仅开发了X射线检测的新模式，而且为未来光电器件的应用提供了宝贵的见解。
更新日期：2023-12-11
中文翻译：
钙钛矿铁电体中的 X 射线诱导热释电效应驱动低检测限自供电响应
光致热释电效应（LPE）在光电器件的应用中显示出了巨大的前景，特别是在自供电检测和成像方面。然而，在X射线区域实现LPE非常具有挑战性且稀缺。我们首次报道了 (NPA) 2 (EA) 2 Pb 3 Br 10 （ 1 ，NPA = 新戊胺，EA = 乙胺）单相铁电体中的 X 射线 LPE，采用二维三层钙钛矿图案，其具有~3.7 μC/cm 2的大自发极化。其铁电性允许在普通可见光的波长范围内产生显着的 LPE。引人注目的是，在1中观察到了 X 射线 LPE，它在 0 偏置下具有显着的自供电 X 射线响应，包括高达 225 μC Gy –1 cm –2的灵敏度和~83.4 nGy s –1的低检测限，比医疗诊断要求 (∼5.5 μGy s –1 ) 低近 66 倍。这项工作不仅开发了X射线检测的新模式，而且为未来光电器件的应用提供了宝贵的见解。
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