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Organic Photovoltaic Catalyst with Extended Exciton Diffusion for High-Performance Solar Hydrogen Evolution by Yufan Zhu; Zhenzhen Zhang; Wenqin Si; Qianlu Sun; Guilong Cai; Yawen Li; Yixiao Jia; Xinhui Lu; Weigao Xu; Shiming Zhang; Yuze Lin is a Chemistry article available to read on EtoBox.
What is Organic Photovoltaic Catalyst with Extended Exciton Diffusion for High-Performance Solar Hydrogen Evolution about?
The short exciton diffusion length (L D ) associated with most classical organic photocatalysts (5-10 nm) imposes severe limits on photocatalytic hydrogen evolution efficiency. Here, a photovoltaic molecule (F1) without electron-deficient units at the central building block was designed and synthesized to improve the photoluminescence quantum yield (PLQY). With the enhanced PLQY of 9.3% and a large integral spectral overlap of 3.32 × 10 16 nm 4 M -1 cm -1 , the average L D of F1 film increases to 20 nm, nearly twice the length of the control photovoltaic molecule (Y6). Then, the single-component organic nanoparticles (SC-NPs) based on F1 show an optimized average hydrogen evolution rate (HER) of 152.60 mmol h -1 g -1 under AM 1.5G sunlight (100 mW cm -2 ) illumination for 10 h, which is among the best results for photocatalytic hydrogen evolution.
Who reads Organic Photovoltaic Catalyst with Extended Exciton Diffusion for High-Performance Solar Hydrogen Evolution?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Yufan Zhu; Zhenzhen Zhang; Wenqin Si; Qianlu Sun; Guilong Cai; Yawen Li; Yixiao Jia; Xinhui Lu; Weigao Xu; Shiming Zhang; Yuze Lin
- Publisher
- American Chemical Society (ACS)
- Published
- 2022
- Language
- EN
- Field
- Chemistry (Physical Sciences)