{"title":"具有结晶和氧化调制锡铅钙钛矿的单片集成近红外成像仪","authors":"Zhichun Yang, Jingjing Liu, Haotian Bao, Zonghao Liu, Zaiwei Wang, Xiangdong Li, Zhihao Chen, Guofeng Zhang, Ruiyun Chen, Jianyong Hu, Shuangping Han, Wei Chen, Chengbing Qin, Liantuan Xiao, Suotang Jia","doi":"10.1038/s41377-025-01987-8","DOIUrl":null,"url":null,"abstract":"<p>The fast crystallization and facile oxidation of Sn<sup>2+</sup> of tin-lead (Sn-Pb) perovskites are the biggest challenges for their applications in high-performance near-infrared (NIR) photodetectors and imagers. Here, we introduce a multifunctional diphenyl sulfoxide (DPSO) molecule into perovskite precursor ink to response these issues by revealing its strong binding interactions with the precursor species. The regulated perovskite film exhibits a dense morphology, reduced defect density and prolonged carrier diffusion length. The manufactured self-powered photodetector realizes a spectral response of 300-1100 nm, dark current density of 4.7 × 10<sup>−8</sup> mA cm<sup>−2</sup>, peak responsivity of 0.49 A W<sup>−1</sup> and specific detectivity of 1.20 × 10<sup>12</sup> Jones in NIR region (780–1100 nm), –3 dB bandwidth of 11.4 MHz, linear dynamic range of 174 dB, and ultrafast rise/fall time of 14.2/17.1 ns, respectively. We demonstrate a 64 × 64 NIR imager with an impressive spatial resolution of 1.32 lp mm<sup>−1</sup> by monolithically integrating the photodetector with a commercial thin-film transistor readout circuit.</p>","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"38 1","pages":""},"PeriodicalIF":23.4000,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A monolithically integrated near-infrared imager with crystallization- and oxidation-modulated tin-lead perovskites\",\"authors\":\"Zhichun Yang, Jingjing Liu, Haotian Bao, Zonghao Liu, Zaiwei Wang, Xiangdong Li, Zhihao Chen, Guofeng Zhang, Ruiyun Chen, Jianyong Hu, Shuangping Han, Wei Chen, Chengbing Qin, Liantuan Xiao, Suotang Jia\",\"doi\":\"10.1038/s41377-025-01987-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The fast crystallization and facile oxidation of Sn<sup>2+</sup> of tin-lead (Sn-Pb) perovskites are the biggest challenges for their applications in high-performance near-infrared (NIR) photodetectors and imagers. Here, we introduce a multifunctional diphenyl sulfoxide (DPSO) molecule into perovskite precursor ink to response these issues by revealing its strong binding interactions with the precursor species. The regulated perovskite film exhibits a dense morphology, reduced defect density and prolonged carrier diffusion length. The manufactured self-powered photodetector realizes a spectral response of 300-1100 nm, dark current density of 4.7 × 10<sup>−8</sup> mA cm<sup>−2</sup>, peak responsivity of 0.49 A W<sup>−1</sup> and specific detectivity of 1.20 × 10<sup>12</sup> Jones in NIR region (780–1100 nm), –3 dB bandwidth of 11.4 MHz, linear dynamic range of 174 dB, and ultrafast rise/fall time of 14.2/17.1 ns, respectively. We demonstrate a 64 × 64 NIR imager with an impressive spatial resolution of 1.32 lp mm<sup>−1</sup> by monolithically integrating the photodetector with a commercial thin-film transistor readout circuit.</p>\",\"PeriodicalId\":18069,\"journal\":{\"name\":\"Light-Science & Applications\",\"volume\":\"38 1\",\"pages\":\"\"},\"PeriodicalIF\":23.4000,\"publicationDate\":\"2025-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Light-Science & Applications\",\"FirstCategoryId\":\"1089\",\"ListUrlMain\":\"https://doi.org/10.1038/s41377-025-01987-8\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Light-Science & Applications","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.1038/s41377-025-01987-8","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
摘要
锡铅（Sn-Pb）钙钛矿的快速结晶和易氧化Sn2+是其应用于高性能近红外（NIR）光电探测器和成像仪的最大挑战。在这里，我们将多功能二苯基亚砜（DPSO）分子引入到钙钛矿前驱体墨水中，通过揭示其与前驱体物种的强结合相互作用来应对这些问题。调控后的钙钛矿膜形貌致密，缺陷密度降低，载流子扩散长度延长。该自驱动光电探测器的光谱响应范围为300 ~ 1100 nm，暗电流密度为4.7 × 10 ~ 8 mA cm ~ 2，近红外区（780 ~ 1100 nm）的峰值响应率为0.49 a W ~ 1，比检出率为1.20 × 1012 Jones， -3 dB带宽为11.4 MHz，线性动态范围为174 dB，超快上升/下降时间为14.2/17.1 ns。我们通过将光电探测器与商用薄膜晶体管读出电路单片集成，展示了具有令人印象深刻的1.32 lp mm−1空间分辨率的64 × 64近红外成像仪。
A monolithically integrated near-infrared imager with crystallization- and oxidation-modulated tin-lead perovskites
The fast crystallization and facile oxidation of Sn2+ of tin-lead (Sn-Pb) perovskites are the biggest challenges for their applications in high-performance near-infrared (NIR) photodetectors and imagers. Here, we introduce a multifunctional diphenyl sulfoxide (DPSO) molecule into perovskite precursor ink to response these issues by revealing its strong binding interactions with the precursor species. The regulated perovskite film exhibits a dense morphology, reduced defect density and prolonged carrier diffusion length. The manufactured self-powered photodetector realizes a spectral response of 300-1100 nm, dark current density of 4.7 × 10−8 mA cm−2, peak responsivity of 0.49 A W−1 and specific detectivity of 1.20 × 1012 Jones in NIR region (780–1100 nm), –3 dB bandwidth of 11.4 MHz, linear dynamic range of 174 dB, and ultrafast rise/fall time of 14.2/17.1 ns, respectively. We demonstrate a 64 × 64 NIR imager with an impressive spatial resolution of 1.32 lp mm−1 by monolithically integrating the photodetector with a commercial thin-film transistor readout circuit.
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