DOI: https://doi.org/10.29363/nanoge.interect.2022.002
Publication date: 11th October 2022
Converting solar energy into chemical commodities (such as, hydrogen, hydrocarbons) via photoelectrochemical devices has become the topic of vital importance, since such a technique provides an efficient strategy for addressing solar energy intermittency problem and supplying feedstocks to the commodity chemicals industry on a global scale. Employing organic conjugated semiconductors in photoelectrochemical devices, including small molecules, linear polymers and covalent organic frameworks (COFs), is attracting an increasing interest in recent years, due to their tunable optoelectronic properties at the atomic level.[1] So far, developing molecular designs and photoelectrode architectures toward achieving comparable performance and stability with inorganic counterparts remains as the major task of organic photoelectrodes. In this presentation, strategies for advancing the performance and operational stability of organic photoelectrodes will be discussed.[2, 3] The deactivation pathway of organic semiconductors for photoelectrochemical application is studied by in-situ spectroelectrochemical characterizations. Furthermore, a novel approach for fabricating high quality COF thin films and constructing donor polymer/COF heterojunction based photocathode for solar-to-hydrogen conversion will also be presented.[4]
L.Y. acknowledges the Alexander von Humboldt Foundation for the fellowship support.
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