Optical, electronic, and photoelectrochemical properties of the p-type Cu3−xVO4 semiconductor

2015 ◽  
Vol 3 (8) ◽  
pp. 4501-4509 ◽  
Author(s):  
Prangya P. Sahoo ◽  
Brandon Zoellner ◽  
Paul A. Maggard
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Critical Role ◽  
Solar Energy Conversion ◽  
Photoelectrochemical Properties ◽  
P Type

Formation of surface nanoparticles on p-type Cu3VO4 (shown) and their critical role in enhancing its photocurrents for solar energy conversion.

scholarly journals TiO2/graphene/CuSbS2 mixed-dimensional array with high-performance photoelectrochemical properties

RSC Advances ◽  
2019 ◽  
Vol 9 (58) ◽  
pp. 33747-33754
Author(s):  
Qianyuan Chen ◽  
Zhongchi Wang ◽  
Keqiang Chen ◽  
Qiang Fu ◽  
Yueli Liu ◽  
...  
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
High Performance ◽  
Solar Energy Conversion ◽  
Photoelectrochemical Properties ◽  
Dimensional Array ◽  
Novel Materials

The growing demands for reproducible and clean sources of power has prompted the exploitation of novel materials for solar-energy conversion; in any case, the improvement of their conversion efficiency remains a big challenge.

Porphyrin-modified electrodes for solar energy conversion

2009 ◽  
Vol 13 (10) ◽  
pp. 1063-1068 ◽  
Author(s):  
Hiroshi Imahori ◽  
Tomokazu Umeyama
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Modified Electrodes ◽  
Solar Energy Conversion ◽  
Molecular Structures ◽  
Photoelectrochemical Properties ◽  
Photocurrent Generation

This mini review presents our recent developments in porphyrin-modified electrodes for solar energy conversion. Various porphyrins have been assembled on nanostructured semiconducting electrodes to achieve efficient photocurrent generation. First, porphyrins have been organized with fullerenes onto semiconducting electrodes to elucidate the relationship between the molecular structures, film structures, and photoelectrochemical properties of the modified electrodes. Formation of hole and electron-transporting highways in the porphyrin/fullerene composite film led to the remarkable enhancement of photocurrent generation. Second, porphyrin-modified single-walled carbon nanotubes have also been assembled onto semiconducting electrodes. The degree of chemical functionalization by the bulky porphyrins was found to have a large impact on the photoelectrochemical properties. Third, asymmetrically π-elongated porphyrins have been successfully employed in dye-sensitized solar cells to improve the cell performance as well as the light-harvesting properties. The power conversion efficiency of the fused porphyrin cell was improved by 50% compared to the reference cell using the corresponding unfused porphyrin. Finally, carboxyquinoxalino derivatives of zinc porphyrin have been further developed to extend the concept of asymmetrically π-elongated porphyrins. The maximum power conversion efficiency of 5.2% was obtained by using 5,10,15,20-tetrakis(2,4,6-trimethylphenyl)-6′-carboxyquinoxalino[2,3-b]porphyrinatozinc(II).

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