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Updated: Oct 6, 2025

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
Published on: August 23, 2012
Promoting charge separation by rational integration of a covalent organic framework on a BiVO4 photoanode
Abstract:
For the first time, covalent organic frameworks (COF-TpPa and COF-TpPaC) are selected to combine with the BiVO4 photoanode through a covalent bond. The heterojunction and covalent connection of COFs and BiVO4 can promote the separation of carriers, and the -CH3 on the benzene ring in COF-TpPaC as an electron donor group can increase the carrier concentration of the photoanode. As a result, the TpPaC/BiVO4 photoanode shows the best performance. This covalent hybridization strategy opens a new insight into the development of COF-modified photoanodes.
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