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<p>One promising method of converting solar power into chemical fuel and minimizing power shortages is photoelectrochemical water splitting, which can produce hydrogen and improve environmental health. Au functionalized In<sub>2</sub>S<sub>3</sub> nanoflowers were synthesized with an easy chemical vapor deposition (CVD) and chemical reduction technique, respectively. Surface characterization techniques such as Field effect scanning electron microscopy (FESEM) and Elemental mapping analysis (EDX) show the uniform functionalization and synthesis of Au functionalized In<sub>2</sub>S<sub>3</sub>. High optical absorption and higher electron–hole pair concentration are generated due to an in-built electric field, reducing the recombination rate at the interface and resulting in a high photocurrent density value of 5.5 mAcm<sup>−2</sup> and IPCE (incident photon to the current conversion efficiency) value of 80%. The synthesized Au functionalized In<sub>2</sub>S<sub>3</sub> nanoflowers demonstrated excellent durability and functionality for the oxidization process of water in sunlight.</p>

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Synthesis of Au nanoparticles and functionalization of In2S3 nanoflowers for enhanced photoelectrochemical performance

  • 期刊论文

  • 发表日期：

    2025年6月12日

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  • Narinder Kaur,
  • Abhishek Ghosh,
  • Barkha Rohtagi

摘要

One promising method of converting solar power into chemical fuel and minimizing power shortages is photoelectrochemical water splitting, which can produce hydrogen and improve environmental health. Au functionalized In2S3 nanoflowers were synthesized with an easy chemical vapor deposition (CVD) and chemical reduction technique, respectively. Surface characterization techniques such as Field effect scanning electron microscopy (FESEM) and Elemental mapping analysis (EDX) show the uniform functionalization and synthesis of Au functionalized In2S3. High optical absorption and higher electron–hole pair concentration are generated due to an in-built electric field, reducing the recombination rate at the interface and resulting in a high photocurrent density value of 5.5 mAcm−2 and IPCE (incident photon to the current conversion efficiency) value of 80%. The synthesized Au functionalized In2S3 nanoflowers demonstrated excellent durability and functionality for the oxidization process of water in sunlight.