Results 41 to 50 of about 18,480 (221)
Improved photoelectrochemical performance of GaN nanopillar photoanodes [PDF]
Nanotechnology, 2017 In this work, we report on the photoelectrochemical (PEC) investigation of n-GaN nanopillar (NP) photoanodes fabricated using metal organic chemical vapour deposition and the top-down approach. Substantial improvement in photocurrents is observed for GaN NP photoanodes compared to their planar counterparts.
Narangari, Parvathala Reddy +4 more
openaire +3 more sources
Polarons in Heterogeneous Photo(electro)Catalysts
Angewandte Chemie, EarlyView.Polarons are defined as quasiparticles consisting of electrons/holes covered by a cloud of virtual phonons, which are beneficial/detrimental to the electronic properties of materials. This minireview provides a conceptual overview of how small polaron formation influences the photon absorption, charge transport and separation, and surface reactivity in
Hao Wu, Fatwa F. Abdi, Yun Hau Ng
wiley +2 more sources
Composition-Dependent Functionality of Copper Vanadate Photoanodes [PDF]
ACS Applied Materials & Interfaces, 2018 To understand functional roles of constituent elements in ternary metal oxide photoanodes, essential photoelectrochemical (PEC) properties are systematically analyzed on a series of copper vanadate compounds with different Cu:V elemental ratios. Homogeneous and highly continuous thin films of β-Cu2V2O7, γ-Cu3V2O8, Cu11V6O26, and Cu5V2O10 are grown via ...
Chang-Ming Jiang +7 more
openaire +4 more sources
Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
ChemSusChem, 2023 AbstractMolecular catalysts are promising oxygen evolution promoters in conjunction with photoanodes for solar water splitting. Maintaining the stability of both photoabsorber and cocatalyst is still a prime challenge, with many efforts tackling this issue through sophisticated material designs.
Ken J. Jenewein +9 more
openaire +5 more sources
An n-Si/n-Fe2O3 Heterojunction Tandem Photoanode for Solar Water Splitting
CHIMIA, 2013 Few metal oxide photoanodes are able to reduce protons to hydrogen because their conduction band minimum is located at too positive potentials. This can be remedied by biasing the photoanode with a photovoltaic cell placed behind the photoanode.
Roel van de Krol, Yongqi Liang
doaj +1 more source
Long-term durability of metastable β-Fe2O3 photoanodes in highly corrosive seawater
Nature Communications, 2023 Durability is one prerequisite for material application. Photoelectrochemical decomposition of seawater is a promising approach to produce clean hydrogen by using solar energy, but it always faces the problem of serious Cl− corrosion.
Changhao Liu +10 more
doaj +1 more source
Chemical Engineering Journal Advances, 2021 A method is devised to integrate a photocatalytic and photoelectrochemical (PEC) systems to achieve enhanced water oxidation performance of a BiVO4 photoanode.
Aditya Singh +3 more
doaj +1 more source
Test of different sensitizing dyes in dye-sensitized solar cells based on Nb2O5 photoanodes [PDF]
, 2018 High-performance dyes routinely employed in TiO2-based dye-sensitized solar cells (DSSCs) were tested in cells assembled using Nb2O5 nanostructure-based photoanodes. The sensitizers were chosen among both metal-complex (two Ru-based, N749 and C106, and
Latini, Alessandro, Panetta, Riccardo
core +1 more source
Impact of ionizing radiation doses on nanocrystalline TiO2 layer in DSSC’s photoanode film
Results in Physics, 2018 In dye-sensitized solar cell (DSSC) properties of nanocrystalline oxide layer of photoanode may changes when exposed to ionization radiation environment which may leads to change the cell performance.
M. Khalid Hossain +4 more
doaj +1 more source
ElectrochemistryThis study used an AC impedance method to quantitatively analyze the internal resistance in a tandem cell with a gallium-nitride (GaN) based photoanode for the water splitting reaction.
Yuya UZUMAKI +5 more
doaj +1 more source