scholarly journals Enhanced Photocatalytic Hydrogen Generation by Optimized Plasmonic Hot Electron Injection in Structure-Adjustable Au-ZnO Hybrids

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 376
Author(s):  
Youlong Chen ◽  
Liang Ma ◽  
Sijing Ding
Keyword(s):  
Photocatalytic Activity ◽  
Transient Absorption ◽  
Hydrogen Generation ◽  
Electron Injection ◽  
Resonance Excitation ◽  
Core Shell ◽  
Hot Electron ◽  
Photocatalytic Hydrogen Generation ◽  
Hot Electron Injection ◽  
Apparent Quantum Efficiency

Plasmonic Au-ZnO hybrids with adjustable structures (including Au-decorated ZnO and core–shell Au@ZnO with dense and porous ZnO shells) and the optimized hot electron-driven photocatalytic activity were successfully prepared. It was found that the Au@ZnO core–shell hybrids with porous morphology had the highest plasmon-enhanced photocatalytic hydrogen generation activity under visible light irradiation. The wavelength-dependent photocatalytic tests verified that Au@ZnO with porous ZnO shells had the highest apparent quantum efficiency upon resonance excitation. The ultrafast transient absorption measurements revealed that Au@ZnO with porous ZnO shells had the fastest plasmon-induced hot electron injection, which was thought to be the reason for the improved photocatalytic activity. This work might provide a promising route to designing photocatalytic and photoelectric materials.

Shell Thickness Dependence of the Plasmon-Induced Hot-Electron Injection Process in Au@CdS Core–Shell Nanocrystals

2021 ◽  
Vol 125 (36) ◽  
pp. 19906-19913
Author(s):  
Huifang Dong ◽  
Jingwen Feng ◽  
Jia Liu ◽  
Xiaodong Wan ◽  
Jiatao Zhang ◽  
...  
Keyword(s):  
Shell Thickness ◽  
Electron Injection ◽  
Thickness Dependence ◽  
Core Shell ◽  
Hot Electron ◽  
Injection Process ◽  
Hot Electron Injection

scholarly journals TiN@TiO 2 Core–Shell Nanoparticles as Plasmon‐Enhanced Photosensitizers: The Role of Hot Electron Injection

2020 ◽  
Vol 14 (5) ◽  
pp. 1900376 ◽  
Author(s):  
Xiaohui Xu ◽  
Aveek Dutta ◽  
Jacob Khurgin ◽  
Alexander Wei ◽  
Vladimir M. Shalaev ◽  
...  
Keyword(s):  
Electron Injection ◽  
Core Shell ◽  
Hot Electron ◽  
Shell Nanoparticles ◽  
Hot Electron Injection ◽  
Core Shell Nanoparticles

Plasmon-mediated photocatalytic activity of wet-chemically prepared ZnO nanowire arrays

2015 ◽  
Vol 17 (11) ◽  
pp. 7395-7403 ◽  
Author(s):  
Thang Duy Dao ◽  
Gui Han ◽  
Nono Arai ◽  
Toshihide Nabatame ◽  
Yoshiki Wada ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Photocatalytic Activity ◽  
Field Distribution ◽  
Electron Injection ◽  
Nanowire Arrays ◽  
Hot Electron ◽  
Zno Nanowire ◽  
Electromagnetic Field Distribution ◽  
Nano Scale ◽  
Hot Electron Injection

Relation among (1) photocatalytic activity (2) nano-scale electromagnetic field distribution and (3) hot electron injection of metal loaded ZnO wires was elucidated.

Novel Zn0.8Cd0.2S@g-C3N4 core–shell heterojunctions with a twin structure for enhanced visible-light-driven photocatalytic hydrogen generation

2018 ◽  
Vol 6 (35) ◽  
pp. 17086-17094 ◽  
Author(s):  
Feng-Yu Tian ◽  
Dongfang Hou ◽  
Fan Tang ◽  
Min Deng ◽  
Xiu-qing Qiao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Generation ◽  
Shell Structures ◽  
Core Shell ◽  
Twin Structure ◽  
Synergetic Effects ◽  
Photocatalytic Hydrogen Generation ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven

The excellent photocatalytic activity of Zn0.8Cd0.2S@g-C3N4 heterojunctions is ascribed to the synergetic effects of twinned homojunctions and core–shell structures.

Rectification in Chiral Carbon Nanotubes with Hot Electron Injection

2020 ◽  
Vol 131 (3) ◽  
pp. 456-459
Author(s):  
S. S. Abukari ◽  
R. Musah ◽  
M. Amekpewu ◽  
S. Y. Mensah ◽  
N. G. Mensah ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Injection ◽  
Hot Electron ◽  
Hot Electron Injection ◽  
Chiral Carbon

scholarly journals Simulation of GaAs submicron FET with hot-electron injection structure

1983 ◽  
Vol 19 (17) ◽  
pp. 697 ◽  
Author(s):  
K. Tomizawa ◽  
Y. Awano ◽  
N. Hashizume ◽  
M. Kawashima
Keyword(s):  
Electron Injection ◽  
Hot Electron ◽  
Hot Electron Injection

Interface State Generation Mechanism in MOSFET's during Substrate Hot-Electron Injection

1988 ◽  
Vol 27 (Part 2, No. 12) ◽  
pp. L2395-L2397 ◽  
Author(s):  
Naoki Yasuda ◽  
Hiroshi Nakamura ◽  
Kenji Taniguchi ◽  
Chihiro Hamaguchi ◽  
Masakazu Kakumu
Keyword(s):  
Electron Injection ◽  
Interface State ◽  
Generation Mechanism ◽  
Hot Electron ◽  
Hot Electron Injection ◽  
State Generation

Size Effects on Photocatalytic H2 Generation with CdSe/CdS Core-Shell Nanocrystals

2015 ◽  
Vol 229 (1-2) ◽  
Author(s):  
Florian Ehrat ◽  
Thomas Simon ◽  
Jacek K. Stolarczyk ◽  
Jochen Feldmann
Keyword(s):  
Hydrogen Generation ◽  
Aqueous Dispersion ◽  
Core Shell ◽  
Ni Nanoparticles ◽  
Cdse Core ◽  
Photocatalytic Hydrogen Generation ◽  
Generation Capacity ◽  
Photocatalytic H2 Generation ◽  
Two Parameters

AbstractCdSe/CdS core-shell nanocrystals with controlled CdS shell thickness and CdSe core size were synthesized for several different values of these two parameters. The particles in aqueous dispersion were in situ decorated with Ni nanoparticles and evaluated for photocatalytic hydrogen generation capacity. The highest H

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