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In the present work, we report on a two-step vapor deposition (TVD) process of depositing graphitic carbon nitride (g-CN) films for photoelectrochemical (PEC) application. The method is versatile for various monomers including cyanamide, dicyanamide and melamine as well as different substrates. The role of deposition temperature and amount of monomers has been investigated in detail. Structural and...
This work reports on single-crystal WO3 nanoflakes decorated with carbon quantum dots (CQDs) for efficient photoelectrochemical energy conversion system. The promising photoanodes can be fabricated via seed-mediated solvothermal method in combination with subsequent impregnation-assembling. A photocurrent density of 1.46 mA cm−2 at 1.0 V vs. Ag/AgCl can be achieved for the CQDs/WO3 electrode when...
The photocatalytic water splitting into hydrogen and oxygen using solar light is a promising method to provide clean energy carriers in the future. Herein we report on an experimental investigation of TiO2 nanotubes (NTs) modified with electrochemically reduced graphene oxide (ERGO) for photoelectrochemical water splitting. A photocurrent density of 1.44mAcm−2 at 1.23V vs. RHE has been achieved for...
The dependence of the absorbance of few-layer graphene oxide on reduction level is shown to originate from different inter- and intra-band transitions using infrared–visible spectroscopy. In addition, the band-gap of reduced graphene oxide is tunable from 2 to 0.02eV depending on its reduction level. These results indicate that reduced graphene oxide possesses great potential as a candidate for photodetection...
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