Enhanced photoelectrochemical performance of Si nanowires by etching a single-crystal Si(100) wafer

2018 ◽  
Vol 448 ◽  
pp. 126-132 ◽  
Author(s):  
Linmeng Wang ◽  
Xiuquan Gu ◽  
Yulong Zhao ◽  
Meng Wei ◽  
Chunlai Huang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Si Nanowires ◽  
Photoelectrochemical Performance

scholarly journals Photoelectrochemical performance of facet-controlled TiO2 nanosheets grown hydrothermally on FTO

2021 ◽  
Author(s):  
Fahimeh Shahvardanfard ◽  
Gihoon Cha ◽  
Nikita Denisov ◽  
Benedict Osuagwu ◽  
Patrik Schmuki
Keyword(s):  
Single Crystal ◽  
Tin Oxide ◽  
Photoelectrochemical Performance ◽  
Tio2 Nanosheets

Single crystal anatase TiO2 nanosheets (TiO2-NSs) are grown hydrothermally on fluorine-doped tin oxide (FTO).

Orientation modulated charge transport in hematite for photoelectrochemical water splitting

2016 ◽  
Vol 09 (03) ◽  
pp. 1650047 ◽  
Author(s):  
Jiajia Cai ◽  
Yinglei Liu ◽  
Song Li ◽  
Meiqi Gao ◽  
Dunwei Wang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Charge Transport ◽  
Water Splitting ◽  
High Magnetic Field ◽  
Current Method ◽  
Photoelectrochemical Water Splitting ◽  
Photoelectrochemical Performance

Hematite is currently considered one of the most promising photoanode materials for light-driven water splitting. The photoelectrochemical performance of hematite is limited by its low conductivity. In this work, we demonstrate that the conductivity of hematite films can be tuned by controlling the orientation of hematite crystals. By applying a high magnetic field (up to 10 T) during the drop-casting preparation, hematite films composed of single crystal particles show featured texture by promoting those particles alignment with (001) normal to the substrate. By enhancing the photocurrent densities with tuned hematite orientation, the current method provides an effective way for increasing the number of carriers that can reach the surface.

Doping of Al-catalyzed Vapor-liquid-solid Grown Si Nnanowires

2007 ◽  
Vol 1018 ◽  
Author(s):  
Sung Jin Whang ◽  
Sung Joo Lee ◽  
Wei Feng Yang ◽  
Hai Chen Zhu ◽  
Han Lu Gu ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Single Crystal ◽  
Photoelectron Spectroscopy ◽  
Chemical Properties ◽  
Si Nanowires ◽  
Vapor Liquid Solid ◽  
Transmission Electron ◽  
Plasma Doping ◽  
Physical And Chemical ◽  
Vapor Liquid

AbstractWe successfully synthesized high quality single crystal Si nanowires using Al catalyst via vapor-liquid-solid (VLS) mechanism, having diameters ranging from 10 to 200 nm with 10∽20 §­ of length. Characterization of physical and chemical properties of Al-catalyzed Si nanowires using transmission electron microscope (TEM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) analysis showed that single crystal Si nanowires can be grown with Al-catalyst at 540 ¡C and selective etching of Al existing at the tip of nanowire can provide metal-free Si nanowires that are compatible with conventional Si-based IC process. By using plasma doping method, it was confirmed that the doping level can be controlled and the boron was successfully introduced on Si substrate with 3×1022/cm3 of peak doping concentration.

Decoration of Si-nanowires-grafted Si micropillar array with Ag nanoparticles for photoelectrocatalytic dechlorination of 4-chlorophenol

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78564-78569 ◽  
Author(s):  
H. Yu ◽  
F. Fan ◽  
S. Wu ◽  
H. Zhang ◽  
N. Lu ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Ag Nanoparticle ◽  
Si Nanowires ◽  
Photoelectrochemical Performance ◽  
Si Nanowire ◽  
Halogenated Pollutants ◽  
Micropillar Array

The energetic photoelectrochemical performance of an Ag nanoparticle-decorated Si-nanowire-grafted Si micropillar array and its capability in the control of halogenated pollutants are reported.

Single-crystal TiO2/SrTiO3 core–shell heterostructured nanowire arrays for enhanced photoelectrochemical performance

Rare Metals ◽  
2019 ◽  
Vol 38 (5) ◽  
pp. 369-378 ◽  
Author(s):  
Ying Chen ◽  
Shi Li ◽  
Ruo-Yu Zhao ◽  
Wei Li ◽  
Zhao-Hui Ren ◽  
...  
Keyword(s):  
Single Crystal ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Photoelectrochemical Performance

Photoelectrochemical hydrogen evolution of tapered silicon nanowires

2015 ◽  
Vol 17 (2) ◽  
pp. 800-804 ◽  
Author(s):  
Xiaopeng Li ◽  
Yanjun Xiao ◽  
Keya Zhou ◽  
Junna Wang ◽  
Stefan L. Schweizer ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Silicon Nanowires ◽  
Si Nanowires ◽  
Photoelectrochemical Performance

The photoelectrochemical performance of Si nanowires can be greatly improved both in photocurrent and photovoltage through a tapering process.

Single-crystal Al-catalyzed Si nanowires grown via hedgehog-shaped Al–Si aggregates

2010 ◽  
Vol 256 (6) ◽  
pp. 1744-1748 ◽  
Author(s):  
Jin-Young Jung ◽  
Sang-Won Jee ◽  
Jung-Ho Lee
Keyword(s):  
Single Crystal ◽  
Si Nanowires

Nano-surface Monocrystalline BiVO4 Nanoplate Photoanode for Enhanced Photoelectrochemical Performance

2021 ◽  
Author(s):  
Bin Gao ◽  
Tao Wang ◽  
Hairong Xue ◽  
Cheng Jiang ◽  
Lei Sheng ◽  
...  
Keyword(s):  
Single Crystal ◽  
Low Cost ◽  
Photocurrent Density ◽  
Etching Process ◽  
Photoelectrochemical Performance ◽  
Surface Nanostructure

The single-crystal BiVO4 photoanode with surface nanostructure is prepared by a low-cost and simple etching process. As a result, the modified photoanode shows a higher photocurrent density and a lower...

Interface nature of oxidized single-crystal arrays of etched Si nanowires on (100)Si

2012 ◽  
Vol 100 (8) ◽  
pp. 082110 ◽  
Author(s):  
M. Jivanescu ◽  
A. Stesmans ◽  
R. Kurstjens ◽  
F. Dross
Keyword(s):  
Single Crystal ◽  
Si Nanowires
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