光电效应
Boosting(机器学习)
对偶(语法数字)
异质结
各向异性
光合作用
材料科学
化学
物理
光电子学
计算机科学
光学
生物化学
人工智能
文学类
艺术
作者
Mingsheng Lyu,Wenhong Yang,Runshi Xiao,Ying Qin,Rong Tan,Yuanxing Chen,Wenling Gu,Liuyong Hu,Yuehe Lin,Chengzhou Zhu
标识
DOI:10.1002/ange.202407481
摘要
Abstract The design of heterojunctions that mimic natural photosynthetic systems holds great promise for enhancing photoelectric response. However, the limited interfacial space charge layer (SCL) often fails to provide sufficient driving force for the directional migration of inner charge carriers. Drawing inspiration from the electron transport chain (ETC) in natural photosynthesis system, we developed a novel anisotropic dual S‐scheme heterojunction artificial photosynthetic system composed of Bi 2 O 3 −BiOBr−AgI for the first time, with Bi 2 O 3 and AgI selectively distributed along the bicrystal facets of BiOBr. Compared to traditional semiconductors, the anisotropic carrier migration in BiOBr overcomes the recombination resulting from thermodynamic diffusion, thereby establishing a potential ETC for the directional migration of inner charge carriers. Importantly, this pioneering bioinspired design overcomes the limitations imposed by the limited distribution of SCL in heterojunctions, resulting in a remarkable 55‐fold enhancement in photoelectric performance. Leveraging the etching of thiols on Ag‐based materials, this dual S‐scheme heterojunction is further employed in the construction of photoelectrochemical sensors for the detection of acetylcholinesterase and organophosphorus pesticides.
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