光探测
材料科学
纳米技术
钙钛矿(结构)
光电子学
纳米片
可扩展性
制作
半导体
薄脆饼
异质结
计算机科学
光电探测器
化学
病理
数据库
医学
结晶学
替代医学
作者
Ming Deng,Ziqing Li,Shiyuan Liu,Xiaosheng Fang,Limin Wu
标识
DOI:10.1038/s41467-024-52840-2
摘要
Abstract Two-dimensional semiconductors have shown great potential for the development of advanced intelligent optoelectronic systems. Among them, two-dimensional perovskite oxides with compelling optoelectronic performance have been thriving in high-performance photodetection. However, harsh synthesis and defect chemistry severely limit their overall performance and further large-scale heterogeneous integration. Here, we report the wafer-scale integration of highly oriented nanosheets by introducing a charge-assisted oriented assembly film-formation process and confirm its universality and scalability. The shallow-trap dominance induced by structural optimization endows the device with a distinguished performance balance, including high photosensitivity close to that of single nanosheet units and fast response speed. An integrated ultra-flexible 256-pixel device demonstrates the versatility of material-to-substrate integration and conformal imaging functionality. Moreover, the device achieves efficient recognition of multidirectional motion trajectories with an accuracy of over 99.8%. Our work provides prescient insights into the large-area fabrication and utilization of 2D perovskite oxides in advanced optoelectronics.
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