3D Branched Nanowire Photoelectrodes for High Efficiency Solar Water Splitting and Hydrogen Production

2011 ◽  
Vol 2011 (CICMT) ◽  
pp. 000084-000090
Author(s):  
Ke Sun ◽  
Alireza Kargar ◽  
Yuchun Zhou ◽  
Kristian Madsen ◽  
Yi Jing ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Cost Effective ◽  
Photoelectrochemical Cell ◽  
Synthesis Methods ◽  
Photocurrent Response ◽  
Solar Water Splitting ◽  
The Core ◽  
Temperature Solution ◽  
Recombination Current

We report a high efficiency water splitting photoelectrochemical cell based on 3D branched nanowire (NW) heterostructures photoelectrodes. The 3D NW heterostructure is composed of an n-Si NW core and ZnO NW branches and fabricated from cost-effective low temperature solution-based synthesis methods. Specifically, we report the studies of 3D n-n NW heterojunction photoelectrode efficiency (photocurrent) dependence on the core and branch NW length, where longer Si NW cores give a larger anodic photocurrent response as well as a recombination current, and longer ZnO NW branches increase the cathodic photocurrent response and the dark current.

scholarly journals Integrated Membrane-Electrode-Assembly Photoelectrochemical Cell under Various Feed Conditions for Solar Water Splitting

2018 ◽  
Vol 166 (5) ◽  
pp. H3020-H3028 ◽  
Author(s):  
Tobias A. Kistler ◽  
David Larson ◽  
Karl Walczak ◽  
Peter Agbo ◽  
Ian D. Sharp ◽  
...  
Keyword(s):  
Water Splitting ◽  
Membrane Electrode Assembly ◽  
Photoelectrochemical Cell ◽  
Membrane Electrode ◽  
Solar Water ◽  
Solar Water Splitting

Integrated MoSe2 with n+p-Si photocathodes for solar water splitting with high efficiency and stability

2018 ◽  
Vol 112 (1) ◽  
pp. 013902 ◽  
Author(s):  
Guanping Huang ◽  
Jie Mao ◽  
Ronglei Fan ◽  
Zhihao Yin ◽  
Xi Wu ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals A molecular tandem cell for efficient solar water splitting

2020 ◽  
Vol 117 (24) ◽  
pp. 13256-13260 ◽  
Author(s):  
Degao Wang ◽  
Jun Hu ◽  
Benjamin D. Sherman ◽  
Matthew V. Sheridan ◽  
Liang Yan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Photoelectrochemical Cell ◽  
Applied Bias ◽  
Tandem Cell ◽  
Solar Water Splitting ◽  
Dye Sensitized ◽  
Solar Conversion ◽  
Artificial Photosynthetic ◽  
Natural Photosynthesis

Artificial photosynthesis provides a way to store solar energy in chemical bonds. Achieving water splitting without an applied external potential bias provides the key to artificial photosynthetic devices. We describe here a tandem photoelectrochemical cell design that combines a dye-sensitized photoelectrosynthesis cell (DSPEC) and an organic solar cell (OSC) in a photoanode for water oxidation. When combined with a Pt electrode for H2evolution, the electrode becomes part of a combined electrochemical cell for water splitting, 2H2O → O2+ 2H2, by increasing the voltage of the photoanode sufficiently to drive bias-free reduction of H+to H2. The combined electrode gave a 1.5% solar conversion efficiency for water splitting with no external applied bias, providing a mimic for the tandem cell configuration of PSII in natural photosynthesis. The electrode provided sustained water splitting in the molecular photoelectrode with sustained photocurrent densities of 1.24 mA/cm2for 1 h under 1-sun illumination with no applied bias.

3D branched nanowire heterojunction photoelectrodes for high-efficiency solar water splitting and H2 generation

Nanoscale ◽  
2012 ◽  
Vol 4 (5) ◽  
pp. 1515 ◽  
Author(s):  
Ke Sun ◽  
Yi Jing ◽  
Chun Li ◽  
Xiaofeng Zhang ◽  
Ryan Aguinaldo ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Solar Water ◽  
Solar Water Splitting ◽  
H2 Generation

Ti-doped hematite nanostructures for solar water splitting with high efficiency

2012 ◽  
Vol 112 (8) ◽  
pp. 084312 ◽  
Author(s):  
Jiujun Deng ◽  
Jun Zhong ◽  
Aiwu Pu ◽  
Duo Zhang ◽  
Ming Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Solar Water ◽  
Solar Water Splitting

Fully solution-processable Cu2O–BiVO4 photoelectrochemical cells for bias-free solar water splitting

2018 ◽  
Vol 20 (16) ◽  
pp. 3732-3742 ◽  
Author(s):  
Hyunwoo Kim ◽  
Sanghyun Bae ◽  
Dasom Jeon ◽  
Jungki Ryu
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Simple Solution ◽  
Photoelectrochemical Cells ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Solution Processes ◽  
Solution Processable

An efficient and stable bias-free photoelectrochemical cell was readily fabricated using only simple solution processes.

scholarly journals Assessment of a W:BiVO4–CuBi2O4Tandem Photoelectrochemical Cell for Overall Solar Water Splitting

2020 ◽  
Vol 12 (12) ◽  
pp. 13959-13970 ◽  
Author(s):  
Angang Song ◽  
Peter Bogdanoff ◽  
Alexander Esau ◽  
Ibbi Y. Ahmet ◽  
Igal Levine ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals Protagonists and spectators during photocatalytic solar water splitting with SrTaOxNy oxynitride

2021 ◽  
Author(s):  
Craig Lawley ◽  
Zahra Pourmand Tehrani ◽  
Adam Hugh Clark ◽  
Olga V. Safonova ◽  
Max Döbeli ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Grazing Incidence ◽  
Operating Conditions ◽  
Photoelectrochemical Cell ◽  
Light Water ◽  
X Ray ◽  
Solar Water ◽  
Solar Water Splitting

Oxynitrides have been shown to be promising visible light water splitting photocatalysts, but rapidly degrade under operating conditions. With a custom designed photoelectrochemical cell, we perform operando grazing incidence X-ray...

Cobalt and nitrogen co-doped Ni3S2 nanoflowers on nickel foam as high-efficiency electrocatalysts for overall water splitting in alkaline media

2021 ◽  
Author(s):  
Xiaoqiang Du ◽  
Guangyu Ma ◽  
Xiaoshuang Zhang
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
High Efficiency ◽  
Nickel Foam ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Alkaline Media ◽  
Co Doping ◽  
Production Industry

The development of high-performance and cost-effective bifunctional water splitting catalysts are of enormous significance to the hydrogen production industry from water electrolysis. Herein, an in-situ Co and N co-doping method...

A Bottom-Up Approach toward All-Solution-Processed High-Efficiency Cu(In,Ga)S2 Photocathodes for Solar Water Splitting

2016 ◽  
Vol 6 (7) ◽  
pp. 1501949 ◽  
Author(s):  
Néstor Guijarro ◽  
Mathieu S. Prévot ◽  
Xiaoyun Yu ◽  
Xavier A. Jeanbourquin ◽  
Pauline Bornoz ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Solution Processed ◽  
Bottom Up ◽  
Solar Water ◽  
Solar Water Splitting
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