Wasted photons: Photogeneration yield and charge carrier collection efficiency of hematite photoanodes for photoelectrochemical water splitting

2021 ◽  
Author(s):  
Yifat Piekner ◽  
David Shay Ellis ◽  
Daniel A. Grave ◽  
Anton Tsyganok ◽  
Avner Rothschild
Keyword(s):  
Charge Carrier ◽  
Water Splitting ◽  
Collection Efficiency ◽  
Photoelectrochemical Water Splitting ◽  
Carrier Collection

Hematite (α-Fe2O3) is a leading photoanode candidate for photoelectrochemical water splitting. Despite extensive research efforts, the champion hematite photoanodes reported to date have achieved less than half of the maximal...

Time-Resolved Observations of Photo-Generated Charge-Carrier Dynamics in Sb2Se3 Photocathodes for Photoelectrochemical Water Splitting

ACS Nano ◽  
2018 ◽  
Vol 12 (11) ◽  
pp. 11088-11097 ◽  
Author(s):  
Wooseok Yang ◽  
Seungmin Lee ◽  
Hyeok-Chan Kwon ◽  
Jeiwan Tan ◽  
Hyungsoo Lee ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Splitting ◽  
Carrier Dynamics ◽  
Photoelectrochemical Water Splitting ◽  
Time Resolved ◽  
Charge Carrier Dynamics

Improved charge carrier dynamics of WS2 nanostructures by the way of CdS@WS2 heterostructures for use in water splitting and water purification

2020 ◽  
Vol 4 (8) ◽  
pp. 4096-4107
Author(s):  
Muthuraja Velpandian ◽  
Supriya Pulipaka ◽  
Akshay Tikoo ◽  
Praveen Meduri
Keyword(s):  
Charge Carrier ◽  
Cadmium Sulfide ◽  
Water Splitting ◽  
Water Purification ◽  
Fluorescence Emission ◽  
Life Time ◽  
Carrier Dynamics ◽  
Photoelectrochemical Water Splitting ◽  
Charge Carrier Dynamics ◽  
Emission Decay

Long emission decay life time and significantly quenched fluorescence emission of tungsten disulfide (WS2)/cadmium sulfide (CdS) heterostructures aid in enhancing photoelectrochemical water splitting and water purification properties.

Impact of oxygen vacancies on TiO2 charge carrier transfer for photoelectrochemical water splitting

2020 ◽  
Vol 49 (7) ◽  
pp. 2184-2189 ◽  
Author(s):  
Xiaoqian Huang ◽  
Xiaoru Gao ◽  
Qihui Xue ◽  
Can Wang ◽  
Ruikang Zhang ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Photoelectrochemical Water Splitting ◽  
Carrier Transfer ◽  
The Impact

The impact of oxygen vacancies on charge carrier transfer on TiO2 photoanodes is rationally discussed in this work.

Interface Engineering for Modulation of Charge Carrier Behavior in ZnO Photoelectrochemical Water Splitting

2019 ◽  
Vol 29 (15) ◽  
pp. 1808032 ◽  
Author(s):  
Zhuo Kang ◽  
Haonan Si ◽  
Suicai Zhang ◽  
Jing Wu ◽  
Yu Sun ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Interface Engineering

Uniform carbon-coated CdS core–shell nanostructures: synthesis, ultrafast charge carrier dynamics, and photoelectrochemical water splitting

2016 ◽  
Vol 4 (3) ◽  
pp. 1078-1086 ◽  
Author(s):  
Sancan Han ◽  
Ying-Chih Pu ◽  
Lingxia Zheng ◽  
Linfeng Hu ◽  
Jin Zhong Zhang ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Splitting ◽  
Carrier Dynamics ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Facile Synthesis ◽  
Shell Nanostructures ◽  
Charge Carrier Dynamics ◽  
Carbon Coated ◽  
Carrier Analysis

The improved PEC performance and in-depth charge carrier analysis were studied in CdS/C composites obtained by a facile synthesis.

In situ textured carbon nitride photoanodes with enhanced photoelectrochemical activity by band-gap state modulation

2020 ◽  
Vol 8 (45) ◽  
pp. 24005-24012
Author(s):  
Miaoyan Huang ◽  
Haipeng Wang ◽  
Wan Li ◽  
Yan-Ling Zhao ◽  
Rui-Qin Zhang
Keyword(s):  
Charge Carrier ◽  
Band Gap ◽  
Water Splitting ◽  
Carbon Nitride ◽  
Photoelectrochemical Water Splitting ◽  
Photoelectrochemical Activity ◽  
Carrier Separation ◽  
Gap State

As promising photoelectrodes in photoelectrochemical water splitting cells, the photoelectrochemical activity of oxygen-doped CN films can be enhanced by a band-gap state modulation strategy to effectively improve the charge carrier separation.

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