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<p>This work evaluates the temperature stability and photonics application performance of elastomeric colloidal quantum dot (CQD) color converters by analyzing their spectral irradiance characteristics under different thermal settings. We present an extensive assessment of the effects of high temperatures on the optical characteristics of CQDs by examining shifts in peak wavelength, intensity fluctuations, as well as modifications in the full-width at half-maximum (FWHM) at various temperature settings. Our results show considerable variations in emission intensities and peak wavelengths, together with a&#xa0;notable broadening and narrowing of the spectral lines, indicating temperature impacts on the quantum dot size distribution and energy band gap. These observations are critical to the optimization of CQD applications in high-temperature devices, like modern display technologies and Aser-based lighting and projection systems. These findings are particularly relevant for laser-driven color conversion systems, where high optical flux and localized thermal loading significantly influence emission stability and spectral purity.</p>

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Thermal effects on the emission characteristics of colloidal quantum dots for laser-driven color conversion applications

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • Kaliprasanna Swain,
  • Rasmita Kumari Mohanty,
  • Gopinath Palai,
  • Sudipta Dash,
  • Bibhu Kalyan Mishra

摘要

This work evaluates the temperature stability and photonics application performance of elastomeric colloidal quantum dot (CQD) color converters by analyzing their spectral irradiance characteristics under different thermal settings. We present an extensive assessment of the effects of high temperatures on the optical characteristics of CQDs by examining shifts in peak wavelength, intensity fluctuations, as well as modifications in the full-width at half-maximum (FWHM) at various temperature settings. Our results show considerable variations in emission intensities and peak wavelengths, together with a notable broadening and narrowing of the spectral lines, indicating temperature impacts on the quantum dot size distribution and energy band gap. These observations are critical to the optimization of CQD applications in high-temperature devices, like modern display technologies and Aser-based lighting and projection systems. These findings are particularly relevant for laser-driven color conversion systems, where high optical flux and localized thermal loading significantly influence emission stability and spectral purity.