等离子体子
材料科学
纳米颗粒
光催化
等离子纳米粒子
X射线光电子能谱
载流子
光诱导电荷分离
纳米技术
光电子学
半导体
光谱学
光化学
化学工程
人工光合作用
化学
物理
工程类
催化作用
量子力学
生物化学
作者
Yannan Liu,Chenghao Liu,Tushar Debnath,Yong Wang,Darius Pohl,Lucas V. Besteiro,Débora Motta Meira,Shengyun Huang,Fan Yang,Bernd Rellinghaus,Mohamed Chaker,Dmitrii F. Perepichka,Dongling Ma
标识
DOI:10.1038/s41467-023-35981-8
摘要
Integrating plasmonic nanoparticles into the photoactive metal-organic matrix is highly desirable due to the plasmonic near field enhancement, complementary light absorption, and accelerated separation of photogenerated charge carriers at the junction interface. The construction of a well-defined, intimate interface is vital for efficient charge carrier separation, however, it remains a challenge in synthesis. Here we synthesize a junction bearing intimate interface, composed of plasmonic Ag nanoparticles and matrix with silver node via a facile one-step approach. The plasmonic effect of Ag nanoparticles on the matrix is visualized through electron energy loss mapping. Moreover, charge carrier transfer from the plasmonic nanoparticles to the matrix is verified through ultrafast transient absorption spectroscopy and in-situ photoelectron spectroscopy. The system delivers highly efficient visible-light photocatalytic H2 generation, surpassing most reported metal-organic framework-based photocatalytic systems. This work sheds light on effective electronic and energy bridging between plasmonic nanoparticles and organic semiconductors.
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