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Progress in Chemistry 2022, Vol. 34 Issue (11): 2329-2330 DOI: 10.7536/PC221125   Next Articles

• Imprint of Chinese Chemistry •

Spatiotemporal Transfer Process of Photogenerated Charge in Single-Particle Photocatalyst

Chuncheng Chen, Jincai Zhao()   

  1. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • Online: Published:
  • Contact: Jincai Zhao
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A series of spatiotemporally resolved surface photovoltage techniques were used to investigate the pho-togenerated charge transfer process within sub-picosecond to second timescale and at sub-micrometer level on single-particle cuprous oxide photocatalyst. A spatiotemporal charge transfer image was pictured. It is found that the high efficiency in charge separation of the facet-specific cuprous oxide single-particle originates mainly from the ultrafast quasi-ballistic inter-facet hot electron transfer process. These findings give a fascinating and deep insight into the photoinduced charge transfer mechanism in semiconductor photocatalyst, and pave a refreshed way to developing photocatalyst.

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