Enhancing interfacial charge transfer in WO3/BiVO4 photoanode heterojunction through gallium and tungsten co-doping and sulfur modified Bi2O3 interfacial layer

2021 ◽  
Author(s):  
Umesh Prasad ◽  
James Luke Young ◽  
Justin C. Johnson ◽  
Deborah McGott ◽  
Hengfei Gu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Transport ◽  
Water Splitting ◽  
Interfacial Layer ◽  
Photoelectrochemical Water Splitting ◽  
Interfacial Charge Transfer ◽  
Co Doping ◽  
Interfacial Charge ◽  
And Tungsten

Photoanodes containing a WO3/BiVO4 heterojunction have demonstrated promising photoelectrochemical water splitting performance, but the ability to effectively passivate the WO3/BiVO4 interface has limited charge transport and collection. Here, the WO3/BiVO4...

Interaction-Dependent Interfacial Charge-Transfer Behavior in Solar Water-Splitting Systems

Nano Letters ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 1234-1241 ◽  
Author(s):  
Guancai Xie ◽  
Liming Guan ◽  
Linjuan Zhang ◽  
Beidou Guo ◽  
Aisha Batool ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Interfacial Charge Transfer ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Transfer Behavior ◽  
Interfacial Charge

Effects of yttrium, ytterbium with tungsten co-doping on the light absorption and charge transport properties of bismuth vanadate photoanodes to achieve superior photoelectrochemical water splitting

2020 ◽  
Vol 4 (3) ◽  
pp. 1496-1506 ◽  
Author(s):  
Umesh Prasad ◽  
Jyoti Prakash ◽  
Arunachala M. Kannan
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Water Splitting ◽  
Light Absorption ◽  
Bismuth Vanadate ◽  
Photoelectrochemical Water Splitting ◽  
Photoelectrochemical Cell ◽  
Co Doping ◽  
Effective Water

Effective water splitting by a photoelectrochemical cell using a BiVO4 photoanode is limited by the light absorption and charge transport properties.

scholarly journals Plasmon-promoted electrocatalytic water splitting on metal–semiconductor nanocomposites: the interfacial charge transfer and the real catalytic sites

2019 ◽  
Vol 10 (41) ◽  
pp. 9605-9612 ◽  
Author(s):  
Lili Du ◽  
Guodong Shi ◽  
Yaran Zhao ◽  
Xiang Chen ◽  
Hongming Sun ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Interfacial Charge Transfer ◽  
The Real ◽  
Hybrid Catalysts ◽  
Catalytic Sites ◽  
Semiconductor Nanocomposites ◽  
Interfacial Charge

The interfacial charge transfer and real catalytic sites on metal–semiconductor hybrid catalysts for photoelectrocatalytic water splitting are studied.

Charge Carrier Transfer in Ta3N5 Photoanodes Prepared by Different Methods for Solar Water Splitting

2016 ◽  
Vol 69 (6) ◽  
pp. 631 ◽  
Author(s):  
Mingxue Li ◽  
Wenjun Luo ◽  
Liheng Yang ◽  
Xin Zhao ◽  
Zhigang Zou
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Water Splitting ◽  
Charge Separation ◽  
Preparation Method ◽  
Separation Efficiency ◽  
Interfacial Charge Transfer ◽  
Splitting Property ◽  
Charge Separation Efficiency ◽  
Interfacial Charge

The preparation method of a photoanode can affect its water splitting property. Here, as examples, we prepared Ta3N5 photoanodes by an electrophoresis deposition (EPD) method and an oxidation and nitridation of Ta foil (ONTF) method. The light harvest, interfacial charge transfer, and charge separation of the two Ta3N5 photoanodes were analysed to gain insight into the role of the preparation method on the water splitting property. The results suggested that the ONTF-prepared Ta3N5 showed a higher solar energy conversion efficiency, arising from its better interfacial charge transfer efficiency and higher charge separation efficiency. The higher charge separation efficiency was mainly attributed to good electron transfer, and the inter-particle connectivity was key for the electron transfer in the photoanodes. Especially, the dense, small particle structure of ONTF-prepared Ta3N5 was beneficial for increasing the connectivity between inter-particles. This comparison of preparation methods can be used as a reference for future photoanode preparation to improve the water splitting property of photoelectrochemical cells.

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