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<p>Developing plasmonic nanomaterials with different compositions beyond noble metals is crucial to enabling the broad applications of plasmonic materials in diverse areas. In particular, transition metal nitrides such as titanium nitride (TiN) have been reported to exhibit excellent plasmonic optical properties and photothermal conversion efficiency, demonstrating promising applications in catalysis, photothermal therapy, and seawater desalination. While studies on the controllable synthesis of TiN and its optical properties have been reported, the structure-property relationship that controls its plasmonic optical properties remains to be further clarified. Herein, we constructed Au@TiN core-shell nanostructures and investigated the tunability of their structures, composition, and optical properties. This work demonstrates the feasibility of multi-factor control over the plasmonic effects in TiN, providing important insights for the structural design and application of TiN-based plasmonic nanomaterials in catalysis and sensing.</p>

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Au@TiN hybrid nanostructures with geometric, compositional, and optical tunability

  • 期刊论文

  • 发表日期：

    2026年3月17日

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  • Yujian Zeng,
  • Guizeng Yang,
  • Yahui Yang,
  • Yunlong Tao,
  • Binbin Zhang,
  • Qingqing Cheng,
  • Xuehao Sun,
  • Zixu Wang,
  • Lichao Sun,
  • Qingfeng Zhang

摘要

Developing plasmonic nanomaterials with different compositions beyond noble metals is crucial to enabling the broad applications of plasmonic materials in diverse areas. In particular, transition metal nitrides such as titanium nitride (TiN) have been reported to exhibit excellent plasmonic optical properties and photothermal conversion efficiency, demonstrating promising applications in catalysis, photothermal therapy, and seawater desalination. While studies on the controllable synthesis of TiN and its optical properties have been reported, the structure-property relationship that controls its plasmonic optical properties remains to be further clarified. Herein, we constructed Au@TiN core-shell nanostructures and investigated the tunability of their structures, composition, and optical properties. This work demonstrates the feasibility of multi-factor control over the plasmonic effects in TiN, providing important insights for the structural design and application of TiN-based plasmonic nanomaterials in catalysis and sensing.