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- W4382930255 abstract "P-type metal oxide semiconductor CuBi2O4 exhibits excellent energy band structures and photoelectric response characteristics, which are critical for photoelectrocatalytic water splitting. However, the photocurrent densities are still well below the theoretical limit due to poor charge carrier separation and transport properties. In this work, we report a synthetic method for the preparation of phase-pure CuBi2O4 photocathode films via spray pyrolysis by adjusting the evaporation rate of the atomized droplets. An increase in the evaporation rate of the solvent may fix the structure of the deposited film faster and decrease the time available for the establishment of the segregation gradient, thus producing phase-pure semiconductor films. This method reduces process complexity and cost, and the applicability of spray pyrolysis for the preparation of phase-pure CuBi2O4 films is also confirmed. In addition, the photoelectrochemical evaluation of the samples prepared under different treatment conditions reveals that hole transport critically affects the photoelectrocatalytic performance of CuBi2O4 photocathodes. CuO can be used as a hole transport layer to promote the collection and transfer of holes and reduce the recombination of photogenerated carriers." @default.
- W4382930255 created "2023-07-04" @default.
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- W4382930255 date "2023-09-01" @default.
- W4382930255 modified "2023-10-16" @default.
- W4382930255 title "Fast solvent evaporation of phase pure CuBi2O4 photocathodes for photoelectrocatalytic water splitting" @default.
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- W4382930255 doi "https://doi.org/10.1016/j.jelechem.2023.117639" @default.
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