文献类型：期刊文献

英文题名：Ultrafast Dual-Band Imaging Using Solution-Processed Stacked Perovskite Diodes

作者：Zou, Can[1];Yu, Dongfang[2];Lin, Miaoyu[1];Shen, Benben[1];Peng, Yu[1];Zheng, Yichu[2];Yang, Hua Gui[1];Hou, Yu[1];Yang, Shuang[1]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn,Minist Educ, Shanghai 200237, Peoples R China;[2]Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai 200444, Peoples R China

年份：2024

卷号：34

期号：29

外文期刊名：ADVANCED FUNCTIONAL MATERIALS

收录：;EI(收录号：20241215786300);WOS:【SCI-EXPANDED(收录号:WOS:001187184000001)】；

基金：This work was financially supported by National Natural Science Fund for Excellent Young Scholars (52022030), National Ten Thousand Talent Program for Young Top-notch Talent, National Natural Science Foundation of China (22379044, 51972111, 12304109, 52203330), Shanghai Pilot Program for Basic Research (22TQ1400100-5), the Science and Technology Commission of Shanghai Municipality (21DZ1207101), the Key Program of the National Natural Science Foundation of China (22239001), "Dawn" Program of Shanghai Education Commission (22SG28), Shanghai Municipal Natural Science Foundation (22ZR1418000), Innovation Program of Shanghai Municipal Education Commission (E00014), the Science and Technology Innovation Plan Of Shanghai Science and Technology Commission (22YF1410000), Postdoctoral Research Foundation of China (2021M701190), the Fundamental Research Funds for the Central Universities (JKD01231632, JKVD1231041) and Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400).

语种：英文

外文关键词：dual-band imaging; perovskite; photodetection; solution processing; spectral selective

摘要：Multispectral imaging that captures multiple band information for effective environmental or object identification is of great interest in medical, vision, military, and space applications. Monolithic stacked detectors based on epitaxial electronics have been the principal option for infrared dual-band imagers. However, the integration of these single-band units would inevitably lead to performance reduction, high fabrication cost, and low reproducibility yield, which limits the widespread application of such technology. Here, a high-throughput blade coating process is demonstrated to fabricate monolithic double-perovskite-layer photodiodes with preferential crystallographic morphology and high reproductivity. The device delivers electrically switchable dual-band response with a dark current below 10(-9 )mA cm(-2), a selective spectral response of 300-1100 nm, and bandwidths of 16.5/>20 MHz for two distinct bands. Furthermore, such device configuration can concurrently capture dual-color spectral information under an AC-driven mode, enabling the complementary dual-spectral imaging for bioimaging and environmental monitoring.