文献类型：期刊文献

英文题名：Layered polymer-perovskite composite membranes for ultraflexible fatigue-tolerant optoelectronics

作者：Li, Yalu[1];Zou, Can[1];Liu, Da[1];Li, Qing[1];Zhu, Yan[1];Lin, Miaoyu[1];Zeng, Sihan[1];Wei, Zhanpeng[1];Liu, Xinyi[1];Zheng, Yichu[2];Peng, Yu[1];Hou, Yu[1];Yang, Hua Gui[1];Yang, Shuang[1]

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

年份：2025

卷号：16

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001523450400003)】；

基金：This work was financially supported by National Natural Science Foundation of China (22379044, 12304109, 52203330), Shanghai Pilot Program for Basic Research (22TQ1400100-5), Science and Technology Commission of Shanghai Municipality (23520710700), Key Program of the National Natural Science Foundation of China (22239001), the Fundamental Research Funds for the Central Universities (JKD01251505, JKVD1251041), Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400) and Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism (Shanghai Municipal Education Commission).

语种：英文

摘要：Flexible integration of perovskite materials has driven diverse applications, from wearable detectors, portable energy systems to foldable displays. However, due to the intrinsic brittleness of perovskite, mechanical strain inevitably causes the degradation and variation of electronic performance of the devices. Here, we establish a periodic multilayered polymer-perovskite membrane that showcases plastic-like mechanical behaviors of small Young's modulus (5.41 GPa) and bending tolerance (radius of 0.5 mm), yet retains the perovskite's carrier transport capacity (mu tau product of 1.04 x 10-4 cm2 V-1). The mechanistic study shows that the formation of bicontinuous perovskite-polyimide structure in the membrane accounts for the carrier transport and load transfer functions, respectively, thus unifies paradoxical mechanical and electronic properties. Using a lateral device configuration, X-ray detector based on the membrane delivers a high X-ray sensitivity of 8380.80 mu C Gyair-1 cm-2, and withstands 30,000 repeated bending cycles under a bending radius of 1.5 mm without notable performance degradation.