Scholarlink

<p>In this work, temperature dependent downconversion photoluminescence (PL) of green synthesized carbon dots (CDs) are investigated. Size and structure analysis were done by XRD, dynamic light scattering (DLS), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). Absorption studies reveals the formation of CDs with peaks at 304&#xa0;nm and 295&#xa0;nm. Downconversion PL emission of samples was observed from 20 <sup>o</sup>C to 80 <sup>o</sup>C with 433&#xa0;nm excitation. Temperature dependency of position of peaks, band width and intensity of downconversion PL emission are examined here, which throw lights on to the electron-phonon interaction and electron-hole recombination in CDs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Temperature dependent downconversion photoluminescence of naturally synthesized carbon dots

  • 期刊论文

  • 发表日期：

    2025年3月13日

查看全文
  • K Nayana,
  • A. P. Sunitha

摘要

In this work, temperature dependent downconversion photoluminescence (PL) of green synthesized carbon dots (CDs) are investigated. Size and structure analysis were done by XRD, dynamic light scattering (DLS), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). Absorption studies reveals the formation of CDs with peaks at 304 nm and 295 nm. Downconversion PL emission of samples was observed from 20 oC to 80 oC with 433 nm excitation. Temperature dependency of position of peaks, band width and intensity of downconversion PL emission are examined here, which throw lights on to the electron-phonon interaction and electron-hole recombination in CDs.