Synthesis of three-dimensional hyperbranched TiO2nanowire arrays with significantly enhanced photoelectrochemical hydrogen production

2015 ◽  
Vol 3 (7) ◽  
pp. 4004-4009 ◽  
Author(s):  
Zhenghui Pan ◽  
Yongcai Qiu ◽  
Jie Yang ◽  
Meinan Liu ◽  
Lisha Zhou ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
High Performance ◽  
Collection Efficiency ◽  
Three Dimensional ◽  
Absorption Efficiency ◽  
Charge Collection ◽  
Diffusion Distance ◽  
Charge Collection Efficiency ◽  
Photoelectrochemical Hydrogen Production ◽  
Pec Water Splitting

The three-dimensional (3D) hierarchical nanostructure is one of the promising candidates for high performance photoelectrochemical (PEC) water splitting electrodes due to the reduced carrier diffusion distance, improved light absorption efficiency and charge collection efficiency.

Three-dimensional diamond detectors: Charge collection efficiency of graphitic electrodes

2013 ◽  
Vol 103 (23) ◽  
pp. 233507 ◽  
Author(s):  
S. Lagomarsino ◽  
M. Bellini ◽  
C. Corsi ◽  
F. Gorelli ◽  
G. Parrini ◽  
...  
Keyword(s):  
Collection Efficiency ◽  
Three Dimensional ◽  
Charge Collection ◽  
Charge Collection Efficiency

3D imaging of radiation damage in silicon sensor and spatial mapping of charge collection efficiency

2013 ◽  
Vol 8 (03) ◽  
pp. C03023-C03023 ◽  
Author(s):  
M Jakubek ◽  
J Jakubek ◽  
J Zemlicka ◽  
M Platkevic ◽  
V Havranek ◽  
...  
Keyword(s):  
Radiation Damage ◽  
3D Imaging ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Spatial Mapping ◽  
Charge Collection Efficiency ◽  
Silicon Sensor

scholarly journals Perspective on Predominant Metal Oxide Charge Transporting Materials for High-Performance Perovskite Solar Cells

2021 ◽  
Vol 8 ◽  
Author(s):  
Mriganka Singh ◽  
Chih Wei Chu ◽  
Annie Ng
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Charge Transport ◽  
High Performance ◽  
Collection Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Future Research ◽  
Charge Collection Efficiency ◽  
Oxide Charge

Nowadays, the power conversion efficiency of organometallic mixed halide perovskite solar cells (PSCs) is beyond 25%. To fabricate highly efficient and stable PSCs, the performance of metal oxide charge transport layers (CTLs) is one of the key factors. The CTLs are employed in PSCs to separate the electrons and holes generated in the perovskite active layer, suppressing the charge recombination rate so that the charge collection efficiency can be increased at their respective electrodes. In general, engineering of metal oxide electron transport layers (ETLs) is found to be dominated in the research community to boost the performance of PSCs due to the resilient features of ETLs such as excellent electronic properties, high resistance to thermal temperature and moisture, ensuring good device stability as well as their high versatility in material preparation. The metal oxide hole transport layers in PSCs are recently intensively studied. The performance of PSCs is found to be very promising by using optimized hole transport materials. This review concisely discusses the evolution of some prevalent metal oxide charge transport materials (CTMs) including TiO2, SnO2, and NiOx, which are able to yield high-performance PSCs. The article begins with introducing the development trend of PSCs using different types of CTLs, pointing out the important criteria for metal oxides being effective CTLs, and then a variety of preparation methods for CTLs as employed by the community for high-performance PSCs are discussed. Finally, the challenges and prospects for future research direction toward scalable metal oxide CTM-based PSCs are delineated.

Comparative Studies of Ionizing Radiation Detectors Made on the Basis of Various Types of Diamond Plates

2021 ◽  
Vol 23 (2) ◽  
pp. 68-75
Author(s):  
Altukhov A.A. ◽  
Keyword(s):  
Ionizing Radiation ◽  
Single Crystal ◽  
Comparative Studies ◽  
Collection Efficiency ◽  
Radiation Detectors ◽  
Charge Collection ◽  
Alpha Radiation ◽  
Charge Collection Efficiency ◽  
Polarization Phenomena

The results of experiments on the study of polarization phenomena and the charge collection efficiency in test structures of diamond ionizing radiation detectors using diamond plates of various types, including single-crystal NRNT-type, single-crystal CVD-type, as well as polycrystalline type, when exposed to alpha-radiation with an energy of 5.5 MeV are presented. Studies have demonstrated the existence of a number of problems with the device quality of diamond plates that affect the performance of spec-trometric-type detectors.

A high-performance cupric oxide photocatalyst with palladium light trapping nanostructures and a hole transporting layer for photoelectrochemical hydrogen evolution

2019 ◽  
Vol 7 (39) ◽  
pp. 22332-22345 ◽  
Author(s):  
Saeid Masudy-Panah ◽  
Reza Katal ◽  
Negar Dasineh Khiavi ◽  
Ehsan Shekarian ◽  
Jiangyong Hu ◽  
...  
Keyword(s):  
High Performance ◽  
Collection Efficiency ◽  
Cupric Oxide ◽  
Light Trapping ◽  
Photogenerated Electron ◽  
Limiting Factors ◽  
Electron Hole ◽  
Absorption Length ◽  
Charge Collection Efficiency ◽  
Hole Transporting

The high recombination rate of photogenerated electron–hole pairs, poor photocorrosion stability, and the discrepancy between the optical absorption length and charge collection efficiency of cupric oxide (CuO) are the main limiting factors of CuO photocatalysts.

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