An effect of Ag(i)-substitution at Cu sites in CuGaS2 on photocatalytic and photoelectrochemical properties for solar hydrogen evolution

2015 ◽  
Vol 3 (43) ◽  
pp. 21815-21823 ◽  
Author(s):  
Hiroshi Kaga ◽  
Yuko Tsutsui ◽  
Akira Nagane ◽  
Akihide Iwase ◽  
Akihiko Kudo
Keyword(s):  
Hydrogen Evolution ◽  
Photoelectrochemical Properties ◽  
Solar Hydrogen ◽  
Type Character ◽  
P Type

Ag(i)-substitution at the Cu sites in a CuGaS2 photocatalyst with a p-type character was a useful strategy to improve its photocatalytic and photoelectrochemical performances.

scholarly journals Effect of particle size of La5Ti2CuS5O7on photoelectrochemical properties in solar hydrogen evolution

2016 ◽  
Vol 4 (13) ◽  
pp. 4848-4854 ◽  
Author(s):  
Jingyuan Liu ◽  
Takashi Hisatomi ◽  
Masao Katayama ◽  
Tsutomu Minegishi ◽  
Jun Kubota ◽  
...  
Keyword(s):  
Particle Size ◽  
Grain Boundaries ◽  
Hydrogen Evolution ◽  
Carrier Transport ◽  
Photoelectrochemical Properties ◽  
Solar Hydrogen ◽  
Effect Of Particle Size

Rod-like La5Ti2CuS5O7(LTC) particles with larger sizes generate a higher photocurrent owing to lower densities of defects and grain boundaries interrupting the spatially separated carrier transport.

scholarly journals Author Correction: Highly (001)-textured p-type WSe2 Thin Films as Efficient Large-Area Photocathodes for Solar Hydrogen Evolution

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Farabi Bozheyev ◽  
Karsten Harbauer ◽  
Clark Zahn ◽  
Dennis Friedrich ◽  
Klaus Ellmer
Keyword(s):  
Thin Films ◽  
Hydrogen Evolution ◽  
Large Area ◽  
Solar Hydrogen ◽  
P Type

scholarly journals Highly (001)-textured p-type WSe2 Thin Films as Efficient Large-Area Photocathodes for Solar Hydrogen Evolution

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Farabi Bozheyev ◽  
Karsten Harbauer ◽  
Clark Zahn ◽  
Dennis Friedrich ◽  
Klaus Ellmer
Keyword(s):  
Thin Films ◽  
Hydrogen Evolution ◽  
Large Area ◽  
Solar Hydrogen ◽  
P Type

scholarly journals Nickel Oxide Particles Catalyze Photochemical Hydrogen Evolution from Water—Nanoscaling Promotes P-Type Character and Minority Carrier Extraction

ACS Nano ◽  
2015 ◽  
Vol 9 (5) ◽  
pp. 5135-5142 ◽  
Author(s):  
Benjamin A. Nail ◽  
Jorie M. Fields ◽  
Jing Zhao ◽  
Jiarui Wang ◽  
Matthew J. Greaney ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Hydrogen Evolution ◽  
Minority Carrier ◽  
Oxide Particles ◽  
Type Character ◽  
P Type ◽  
Carrier Extraction

scholarly journals Wittichenite semiconductor of Cu3BiS3 films for efficient hydrogen evolution from solar driven photoelectrochemical water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dingwang Huang ◽  
Lintao Li ◽  
Kang Wang ◽  
Yan Li ◽  
Kuang Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Low Cost ◽  
Solar Hydrogen ◽  
Onset Potential ◽  
Term Stability ◽  
Long Term Stability ◽  
Solar Water Splitting ◽  
Current Densities

AbstractA highly efficient, low-cost and environmentally friendly photocathode with long-term stability is the goal of practical solar hydrogen evolution applications. Here, we found that the Cu3BiS3 film-based photocathode meets the abovementioned requirements. The Cu3BiS3-based photocathode presents a remarkable onset potential over 0.9 VRHE with excellent photoelectrochemical current densities (~7 mA/cm2 under 0 VRHE) and appreciable 10-hour long-term stability in neutral water solutions. This high onset potential of the Cu3BiS3-based photocathode directly results in a good unbiased operating photocurrent of ~1.6 mA/cm2 assisted by the BiVO4 photoanode. A tandem device of Cu3BiS3-BiVO4 with an unbiased solar-to-hydrogen conversion efficiency of 2.04% is presented. This tandem device also presents high stability over 20 hours. Ultimately, a 5 × 5 cm2 large Cu3BiS3-BiVO4 tandem device module is fabricated for standalone overall solar water splitting with a long-term stability of 60 hours.

Annealing effect on the optical and photoelectrochemical properties of lead oxide

2018 ◽  
Vol 84 (3) ◽  
pp. 30301 ◽  
Author(s):  
Wided Zerguine ◽  
Djamila Abdi ◽  
Farid Habelhames ◽  
Meriem Lakhdari ◽  
Hassina Derbal-Habak ◽  
...  
Keyword(s):  
Lead Oxide ◽  
Orthorhombic Phase ◽  
Heat Treatments ◽  
Photoelectrochemical Properties ◽  
X Ray Diffraction ◽  
Vis Spectroscopy ◽  
Size And Morphology ◽  
Two Phases ◽  
P Type ◽  
The Relationship

Effect of the annealing oxidation time of electrodeposited lead (Pb) on the phase formation of lead oxide (PbO) films is reported. The phase structure, optical properties, size and morphology of the films were investigated by scanning electron microscopy, X-ray diffraction and UV-vis spectroscopy. The relationship between structur and photoelectrochemical properties was investigated. Thin films of PbO produced via air annealing of electrodeposited lead consist of a mixture of two phases, orthorhombic (o-PbO) and tetragonal (t-PbO), that determine the material properties and effectiveness as absorber layer in a photoelectrochemical device. The proportion of tetragonal t-PbO increases for longer heat treatments. After 40 h, the sample consists mainly of tetragonal t-PbO. The p-type semiconducting behavior of lead oxide was studied by photocurrent measurements. Different heat treatments yield variations in the ratio of tetragonal to orthorhombic lead oxide that effect on device performances, where devices with a higher content of tetragonal t-PbO show higher photocurrent than with the orthorhombic phase.

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