Electrochemical surface charge-inversion from semi-insulating Sb2Se3 photoanodes and abrupt photocurrent generation for water splitting

2018 ◽  
Vol 11 (9) ◽  
pp. 2540-2549 ◽  
Author(s):  
Young Been Kim ◽  
Joo Sung Kim ◽  
Seung Ki Baek ◽  
Young Dae Yun ◽  
Sung Woon Cho ◽  
...  
Keyword(s):  
Surface Charge ◽  
Work Function ◽  
Water Splitting ◽  
Charge Inversion ◽  
Photocurrent Generation ◽  
Inversion Mechanism

Artificially synthesized n-type Sb2Se3 with a low work function produces abrupt photocurrent generation via a novel surface charge-inversion mechanism.

Synergistic Promotion of Photoelectrochemical Water Splitting Efficiency of TiO2 Nanorod Arrays by Doping and Surface Modification

2021 ◽  
Author(s):  
Liang Zhao ◽  
Ding Chen ◽  
Shang Xu ◽  
Zhi Fang ◽  
Lin Wang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Surface Charge ◽  
Water Splitting ◽  
Charge Recombination ◽  
Photoelectrochemical Water Splitting ◽  
Nanorod Arrays ◽  
Critical Factors ◽  
Tio2 Nanorod ◽  
Tio2 Nanorod Arrays ◽  
Light Capture

Fast surface charge recombination and poor light capture capability are regarded as the two critical factors that hamper the photoelectrochemical (PEC) performance of photoanodes. In the present work, we employed...

Surface charge inversion of self-assembled monolayers by visible light irradiation: cargo loading and release by photoreactions

2013 ◽  
Vol 49 (33) ◽  
pp. 3431 ◽  
Author(s):  
You Yu ◽  
Xiaomin Kang ◽  
Xinshi Yang ◽  
Lihua Yuan ◽  
Wen Feng ◽  
...  
Keyword(s):  
Visible Light ◽  
Surface Charge ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Self Assembled Monolayers ◽  
Charge Inversion ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Role of the Metal-Oxide Work Function on Photocurrent Generation in Hybrid Solar Cells

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Chawloon Thu ◽  
Philipp Ehrenreich ◽  
Ka Kan Wong ◽  
Eugen Zimmermann ◽  
James Dorman ◽  
...  
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Work Function ◽  
Hybrid Solar Cells ◽  
Photocurrent Generation

Charge Inversion, Water Splitting, and Vortex Suppression Due to DNA Sorption on Ion-Selective Membranes and Their Ion-Current Signatures

Langmuir ◽  
2013 ◽  
Vol 29 (26) ◽  
pp. 8275-8283 ◽  
Author(s):  
Zdenek Slouka ◽  
Satyajyoti Senapati ◽  
Yu Yan ◽  
Hsueh-Chia Chang
Keyword(s):  
Water Splitting ◽  
Ion Current ◽  
Charge Inversion ◽  
Current Signatures ◽  
Selective Membranes

scholarly journals Effect of Metal Work Function on Hydrogen Production from Photocatalytic Water Splitting with MTiO 2 Catalysts

2020 ◽  
Vol 5 (3) ◽  
pp. 1013-1019 ◽  
Author(s):  
Charles Beasley ◽  
Muthu Kumaran Gnanamani ◽  
Eduardo Santillan‐Jimenez ◽  
Michela Martinelli ◽  
Wilson D. Shafer ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Work Function ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Metal Work Function ◽  
Metal Work

Molecular Dynamics Simulation of Electroosmotic Flow in Nanotubes

2007 ◽  
Author(s):  
Yunfei Chen ◽  
Zhonghua Ni ◽  
Guiming Wang ◽  
Dongyan Xu ◽  
Deyu Li
Keyword(s):  
Molecular Dynamics ◽  
Surface Charge ◽  
Surface Charge Density ◽  
Electroosmotic Flow ◽  
Continuum Theory ◽  
Ion Distribution ◽  
Charge Inversion ◽  
Charge Densities ◽  
Simulation Results ◽  
The Continuum

The ion distribution and electroosmotic flow of sodium chloride solutions confined in cylindrical nanochannels with different surface charge densities are studied with molecular dynamics (MD). In order to obtain simulation results corresponding to more realistic situations, the MD simulation consists of two steps. The first step is used to equilibrate the system and obtain a more realistic ion distribution in the solution under different surface charge densities; and the second step is to apply an electrical field to drive the liquid and extract the electroosmotic flow information. Simulation results indicate that a higher surface-charge density corresponds to a higher peak of the counter ion concentration. Predictions based on the continuum theory were also calculated and compared with the molecular dynamics results. Even though the continuum theory cannot reflect the molecular nature of ions and water molecules, it is found that for low surface charge densities, the continuum theory can still give reasonable results if modified boundary conditions are applied. Charge inversion under high surface charge density has been predicted and observed recently, however, the simulation results do not indicate charge inversion even for a surface density as high as −0.34 C/m2. This might be due to the fact that we perform the MD simulations with monovalent ions, which have a tendency to suppress charge inversion, as demonstrated in the recent literature.

scholarly journals An ion-exchange nanomembrane sensor for detection of nucleic acids using a surface charge inversion phenomenon

2014 ◽  
Vol 60 ◽  
pp. 92-100 ◽  
Author(s):  
Satyajyoti Senapati ◽  
Zdenek Slouka ◽  
Sunny S. Shah ◽  
Susanta K. Behura ◽  
Zonggao Shi ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Nucleic Acids ◽  
Surface Charge ◽  
Charge Inversion ◽  
Inversion Phenomenon
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