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).

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 Controlled Growth of CdS Nanostep Structured Arrays to Improve Photoelectrochemical Performance

2020 ◽  
Vol 8 ◽  
Author(s):  
Jiangang Jiang ◽  
He Wang ◽  
Hongchang An ◽  
Guangyuan Du
Keyword(s):  
Tin Oxide ◽  
Energy Conversion Efficiency ◽  
Photoelectrochemical Cells ◽  
X Ray Diffraction ◽  
Reaction Parameters ◽  
Photoelectrochemical Performance ◽  
New Approach ◽  
Phase Purity ◽  
X Ray ◽  
Straight Rod

CdS nanostep-structured arrays were grown on F-doped tin oxide-coated glasses using a two-step hydrothermal method. The CdS arrays consisted of a straight rod acting as backbone and a nanostep-structured morphology on the surface. The morphology of the samples can be tuned by varying the reaction parameters. The phase purity, morphology, and structure of the CdS nanostep-structured arrays were characterized by X-ray diffraction and field emission scanning electron microscopy. The light and photoelectrochemical properties of the samples were estimated by a UV-Vis absorption spectrum and photoelectrochemical cells. The experimental results confirmed that the special nanostep structure is crucial for the remarkable enhancement of the photoelectrochemical performance. Compared with CdS rod arrays, the CdS nanostep-structured arrays showed increased absorption ability and dramatically improved photocurrent and energy conversion efficiency. This work may provide a new approach for improving the properties of photoelectrodes in the future.

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.

Heterojunction Structure ZnO/TiO2 Nanorods with Enhanced Photoelectrochemical Properties

2017 ◽  
Vol 726 ◽  
pp. 333-337 ◽  
Author(s):  
Wen Jian Feng ◽  
Liang You Lin ◽  
Hai Jin Li ◽  
Ying Peng Gong ◽  
Bo Chi
Keyword(s):  
Hydrothermal Method ◽  
Absorption Spectra ◽  
Tin Oxide ◽  
Zno Nanoparticles ◽  
Photoelectrochemical Properties ◽  
Optical Performance ◽  
Photoelectrochemical Performance ◽  
Heterojunction Structure ◽  
Step Procedure ◽  
Xrd Patterns

This paper describes a simple two-step hydrothermal method for the design of heterojunction structure combined with TiO2 nanorods coated with ZnO nanoparticles. TiO2 nanorods on F-doped tin oxide (FTO) conducting glass are synthesized by hydrothermal method and ZnO coating is prepared through a two-step procedure. The XRD patterns confirm that the nanostructure consists of rutile TiO2 and wurtzite ZnO without any other impure phase. The FE-SEM results show that ZnO is uniformly distributing on the surface of TiO2 nanorods, forming a well-connecting heterojunction. PL studies and UV-vis absorption spectra present the enhanced optical performance of ZnO/TiO2 heterojunction. The heterojunction structure ZnO/TiO2 nanorods show excellent photoelectrochemical performance. The performance and the preparation parameters are also optimized accordingly.

scholarly journals Construction of carbon quantum dots/single crystal TiO2 nanosheets with exposed {001} and {101} facets and their visible light driven catalytic activity

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3532-3541 ◽  
Author(s):  
Hongqin Huang ◽  
Hao Ouyang ◽  
Tiehu Han ◽  
Huigang Wang ◽  
Xuming Zheng
Keyword(s):  
Quantum Dots ◽  
Catalytic Activity ◽  
Visible Light ◽  
Single Crystal ◽  
Carbon Quantum Dots ◽  
Solvothermal Process ◽  
Tio2 Nanosheets ◽  
Visible Light Driven

Carbon quantum dots were doped into anatase TiO2 single crystal nanosheets (TNS) with highly exposed {001} and {101} reactive facets by a facile solvothermal process.

Porous single-crystal NaTi2(PO4)3 via liquid transformation of TiO2 nanosheets for flexible aqueous Na-ion capacitor

Nano Energy ◽  
2018 ◽  
Vol 50 ◽  
pp. 623-631 ◽  
Author(s):  
Qi Yang ◽  
Sihan Cui ◽  
Yifei Ge ◽  
Zijie Tang ◽  
Zhuoxin Liu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Tio2 Nanosheets

Electrospun Ag/WO3 Composite Nanofiber Photoanodes Prepared by DС Electrophoretic Deposition for Photoelectrochemical Water Splitting

2019 ◽  
Vol 947 ◽  
pp. 61-65 ◽  
Author(s):  
Thawach Thammabut ◽  
Tienthong Yuangkaew ◽  
Chanchanok Chumpanya ◽  
Thitipong Tamsenanupap ◽  
Papot Jaroenapibal ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Water Splitting ◽  
Electrophoretic Deposition ◽  
Direct Current ◽  
Tin Oxide ◽  
Composite Nanofibers ◽  
Photoconversion Efficiency ◽  
Photoelectrochemical Performance ◽  
Electrospinning Technique ◽  
Composite Nanofiber

In this work, tungsten oxide (WO3) nanofibers were synthesized using electrospinning technique. Direct current electrophoretic deposition (DC-EPD) was conducted to deposit the nanofibers onto fluorine-doped tin oxide (FTO) electrodes. The photoelectrochemical performance of WO3 nanostructured electrodes was investigated and compared between the samples containing pristine WO3 and Ag/WO3 composite nanofibers. An up-to-6-fold enhancement in photoconversion efficiency (PCE) was obtained from Ag/WO3 composite nanofiber photoanode.

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