Eco-Friendly AgBiS<sub>2</sub> Nanocrystals Enable Visible-Light-Activated Photoelectrochemical Water Splitting
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초록
내용
Currently, The development of new energy sources is recognized as important to replace energy resources that are being depleted by increased use of fossil fuels. Photoelectrochemical (PEC) water splitting is in the spotlight as an infinite source of energy that can be responsible for the next generation of energy. To address these issues, this study presents a novel photoanode design strategy for visible light-driven PEC water splitting using an AgBiS2 nanocrystal (NC) photoanode. Compared to TiO2 and Bi2S3, the halogen-based thiol ligand capped AgBiS2 NC photoanode exhibits a higher photocurrent density (Jph) in both 1 sun and visible light due to its superior electron collection ability and lower interfacial charge transfer resistance. The AgBiS2 NC photoanode emitted 91% Jph in visible and near infrared light, proving the superiority of AgBiS2 NC material in visible light driven PEC devices.