Electric Field Changes on Au Nanoparticles on Semiconductor Supports – The Molecular Voltmeter and Other Methods to Observe Adsorbate-Induced Charge-Transfer Effects in Au/TiO2Nanocatalysts

2015 ◽  
Vol 137 (5) ◽  
pp. 1972-1982 ◽  
Author(s):  
Monica McEntee ◽  
Ana Stevanovic ◽  
Wenjie Tang ◽  
Matthew Neurock ◽  
John T. Yates
2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chunzheng Lv ◽  
Lirong He ◽  
Jiahong Tang ◽  
Feng Yang ◽  
Chuhong Zhang

AbstractAs an important photoconductive hybrid material, perylene/ZnO has attracted tremendous attention for photovoltaic-related applications, but generally faces a great challenge to design molecular level dispersed perylenes/ZnO nanohybrids due to easy phase separation between perylenes and ZnO nanocrystals. In this work, we reported an in-situ reaction method to prepare molecular level dispersed H-aggregates of perylene bisimide/ZnO nanorod hybrids. Surface photovoltage and electric field-induced surface photovoltage spectrum show that the photovoltage intensities of nanorod hybrids increased dramatically for 100 times compared with that of pristine perylene bisimide. The enhancement of photovoltage intensities resulting from two aspects: (1) the photo-generated electrons transfer from perylene bisimide to ZnO nanorod due to the electric field formed on the interface of perylene bisimide/ZnO; (2) the H-aggregates of perylene bisimide in ZnO nanorod composites, which is beneficial for photo-generated charge separation and transportation. The introduction of ordered self-assembly thiol-functionalized perylene-3,4,9,10-tetracarboxylic diimide (T-PTCDI)/ ZnO nanorod composites induces a significant improvement in incident photo-to-electron conversion efficiency. This work provides a novel mentality to boost photo-induced charge transfer efficiency, which brings new inspiration for the preparation of the highly efficient solar cell.


1994 ◽  
Vol 50 (20) ◽  
pp. 15120-15125 ◽  
Author(s):  
H. Öfner ◽  
R. Hofmann ◽  
J. Kraft ◽  
F. P. Netzer ◽  
J. J. Paggel ◽  
...  

ACS Nano ◽  
2012 ◽  
Vol 6 (11) ◽  
pp. 9466-9474 ◽  
Author(s):  
Byoungnam Park ◽  
Kevin Whitham ◽  
Jiung Cho ◽  
Elsa Reichmanis

2009 ◽  
Vol 131 (41) ◽  
pp. 15049-15054 ◽  
Author(s):  
Tarik Mahfoud ◽  
Gábor Molnár ◽  
Sébastien Bonhommeau ◽  
Saioa Cobo ◽  
Lionel Salmon ◽  
...  

2014 ◽  
Vol 2 (11) ◽  
pp. 2010-2018 ◽  
Author(s):  
Jing Wang ◽  
Weiqing Xu ◽  
Jinxia Wu ◽  
Guangtao Yu ◽  
Xianghua Zhou ◽  
...  

The transformation from Ag-TCNQF4 to Ag2-TCNQF4via photo-induced charge transfer under Au nanoparticles catalysis was monitored by Raman spectroscopy.


2015 ◽  
Vol 3 (3) ◽  
pp. 664-673 ◽  
Author(s):  
Cheng Wang ◽  
Gang Liu ◽  
Yu Chen ◽  
Run-Wei Li ◽  
Wenbin Zhang ◽  
...  

Self-rectified memristive behavior and nonlinear transmission characteristics were for the first time observed in a highly soluble all-conjugated oligomer. The novel electrical response of the device is arising from electric field-induced charge transfer interaction in the donor–acceptor structured oligomer.


2018 ◽  
Vol 819 ◽  
pp. 163-170 ◽  
Author(s):  
Colleen Jackson ◽  
Graham T. Smith ◽  
Matthew Markiewicz ◽  
David W. Inwood ◽  
Andrew S. Leach ◽  
...  

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