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Abstrct <p>—The paper presents experimental results on the preparation of samples with colloidal CdSe quantum dots (QDs) of various sizes by thermal synthesis from organic solvents and the fabrication of CdSe/PEPC (PEPC—poly-N-epoxypropylcarbazole) polymer nanocomposites (NCs) based on them. The QDs are characterized indicating their size calibration and are characterized by absorption in the infrared and visible ranges of the exciton energies of the absorption maxima. The same exciton maxima as QDs in CdSe are clearly visible in the NC QDs. The obtained results are also explained by the energy transfer from the PEPC polymer matrix to the QDs. The transparency properties of QDs in the NC systems in the visible and infrared ranges suggest their application in optoelectronics, biochemistry, etc. The use of such materials will expand the spectral range of luminescence and increase its intensity based on the processes of energy and electron transfer in atomic-type QDs.</p>

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Synthesis and Optical Properties of CdSe with Quantum Dots and CdSe/PEPC Polymer Nanocomposites

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • O. T. Bordian,
  • V. I. Verlan

摘要

Abstrct

—The paper presents experimental results on the preparation of samples with colloidal CdSe quantum dots (QDs) of various sizes by thermal synthesis from organic solvents and the fabrication of CdSe/PEPC (PEPC—poly-N-epoxypropylcarbazole) polymer nanocomposites (NCs) based on them. The QDs are characterized indicating their size calibration and are characterized by absorption in the infrared and visible ranges of the exciton energies of the absorption maxima. The same exciton maxima as QDs in CdSe are clearly visible in the NC QDs. The obtained results are also explained by the energy transfer from the PEPC polymer matrix to the QDs. The transparency properties of QDs in the NC systems in the visible and infrared ranges suggest their application in optoelectronics, biochemistry, etc. The use of such materials will expand the spectral range of luminescence and increase its intensity based on the processes of energy and electron transfer in atomic-type QDs.