Atomistic mechanism of charge separation upon photoexcitation at the dye–semiconductor interface for photovoltaic applications

2011 ◽  
Vol 13 (29) ◽  
pp. 13196 ◽  
Author(s):  
Yang Jiao ◽  
Zijing Ding ◽  
Sheng Meng
Keyword(s):  
Charge Separation ◽  
Semiconductor Interface ◽  
Photovoltaic Applications

Enhanced Charge Separation in Nanostructured TiO2 Materials for Photocatalytic and Photovoltaic Applications

2012 ◽  
Vol 51 (37) ◽  
pp. 11841-11849 ◽  
Author(s):  
He He ◽  
Chao Liu ◽  
Kevin D. Dubois ◽  
Tong Jin ◽  
Michael E. Louis ◽  
...  
Keyword(s):  
Charge Separation ◽  
Nanostructured Tio2 ◽  
Photovoltaic Applications

Two-Atomic-Layered Optoelectronic Device Enabled by Charge Separation on Graphene/Semiconductor Interface

2022 ◽  
Author(s):  
Qirong Yang ◽  
Jianxin Guan ◽  
Jingwen Deng ◽  
Zihan Xu ◽  
Zhihao Yu ◽  
...  
Keyword(s):  
Charge Separation ◽  
Optoelectronic Device ◽  
Semiconductor Interface

scholarly journals Efficient Solid-State Photon Upconversion Enabled by Spin Inversion at Organic Semiconductor Interface

2021 ◽  
Author(s):  
Seiichiro Izawa ◽  
Masahiro Hiramoto
Keyword(s):  
Solid State ◽  
Organic Semiconductor ◽  
Charge Separation ◽  
Near Infrared ◽  
Semiconductor Interface ◽  
Problematic Issue ◽  
Light Excitation ◽  
Conventional Systems ◽  
Triplet Formation ◽  
Spin Inversion

We realized solid-state UC with 100 times higher efficiency than a conventional system by discovering a novel UC mechanism in bilayer organic semiconductor heterojunctions. The UC occurred through spin inversion during the charge separation and recombination at the interface. The key to the success was the triplet formation at the interface, as this could avoid the loss process during triplet diffusion, which is a problematic issue in conventional systems. As a result of this finding, efficient UC from near-infrared to visible light on flexible thin films under LED light excitation was made possible.

scholarly journals Coulomb Barrier for Charge Separation at an Organic Semiconductor Interface

2008 ◽  
Vol 101 (19) ◽  
Author(s):  
Matthias Muntwiler ◽  
Qingxin Yang ◽  
William A. Tisdale ◽  
X.-Y. Zhu
Keyword(s):  
Organic Semiconductor ◽  
Charge Separation ◽  
Coulomb Barrier ◽  
Semiconductor Interface

scholarly journals Metal/Semiconductor Nanocomposites for Photocatalysis: Fundamentals, Structures, Applications and Properties

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 359 ◽  
Author(s):  
Yong-sheng Fu ◽  
Jun Li ◽  
Jianguo Li
Keyword(s):  
Surface Plasmon Resonance ◽  
Future Development ◽  
Charge Separation ◽  
Environmental Remediation ◽  
High Performance ◽  
Green Technology ◽  
Human Society ◽  
Semiconductor Interface ◽  
Semiconductor Nanocomposites ◽  
Synthetic Approaches

Due to the capability of utilizing light energy to drive chemical reactions, photocatalysis has been widely accepted as a green technology to help us address the increasingly severe environment and energy issues facing human society. To date, a large amount of research has been devoted to enhancing the properties of photocatalysts. As reported, coupling semiconductors with metals is one of the most effective methods to achieve high-performance photocatalysts. The excellent properties of metal/semiconductor (M/S) nanocomposite photocatalysts originate in two aspects: (i) improved charge separation at the metal-semiconductor interface; and (ii) increased absorption of visible light due to the surface plasmon resonance of metals. So far, many M/S nanocomposite photocatalysts with different structures have been developed for the application in environmental remediation, selective organic transformation, hydrogen evolution, and disinfection. Herein, we will give a review on the M/S nanocomposite photocatalysts, regarding their fundamentals, structures (as well as their typical synthetic approaches), applications and properties. Finally, we will also present our perspective on the future development of M/S nanocomposite photocatalysts.

A composition-tunable ZnxCd1−xSe/ZnO core–shell nanowire array: mechanisms for the enhanced charge separation and its photovoltaic applications

RSC Advances ◽  
2015 ◽  
Vol 5 (15) ◽  
pp. 11084-11090 ◽  
Author(s):  
Ke Cheng ◽  
Xiao Han ◽  
Jian Meng ◽  
Shujie Wang ◽  
Zuliang Du
Keyword(s):  
Charge Transport ◽  
Charge Separation ◽  
Transport Model ◽  
Nanowire Array ◽  
Core Shell ◽  
Photovoltaic Applications

The mechanism for enhanced charge separation was discussed and the charge transport model was established.

scholarly journals Efficient Solid-State Photon Upconversion Enabled by Spin Inversion at Organic Semiconductor Interface

2021 ◽  
Author(s):  
Seiichiro Izawa ◽  
Masahiro Hiramoto
Keyword(s):  
Solid State ◽  
Organic Semiconductor ◽  
Charge Separation ◽  
Near Infrared ◽  
Semiconductor Interface ◽  
Problematic Issue ◽  
Light Excitation ◽  
Conventional Systems ◽  
Triplet Formation ◽  
Spin Inversion

We realized solid-state UC with 100 times higher efficiency than a conventional system by discovering a novel UC mechanism in bilayer organic semiconductor heterojunctions. The UC occurred through spin inversion during the charge separation and recombination at the interface. The key to the success was the triplet formation at the interface, as this could avoid the loss process during triplet diffusion, which is a problematic issue in conventional systems. As a result of this finding, efficient UC from near-infrared to visible light on flexible thin films under LED light excitation was made possible.

Examining the Effect of the Dipole Moment on Charge Separation in Donor–Acceptor Polymers for Organic Photovoltaic Applications

2011 ◽  
Vol 133 (50) ◽  
pp. 20468-20475 ◽  
Author(s):  
Bridget Carsten ◽  
Jodi M. Szarko ◽  
Hae Jung Son ◽  
Wei Wang ◽  
Luyao Lu ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Charge Separation ◽  
Organic Photovoltaic ◽  
Photovoltaic Applications ◽  
Donor Acceptor
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