Ukrainian Journal of Physical Optics· 2026Q2· Review
OSCILLATORY REGULARITY IN THE ENERGY SPECTRUM OF TRAPS IN ORDERED MEDIA. I. EXPERIMENTAL METHODS AND RESULTS (REVIEW)
- 1citations
- Q2SCImago
- 2026year
Short summary
An improved fractional thermoluminescence method reveals oscillatory regularities in trap energies (E=ħωTL(n+1/2)) across over 30 ordered materials, with ωTL often matching Raman spectrum frequencies.
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Key points
- Improved fractional thermoluminescence method used on over 30 ordered materials.
- Trap energies exhibit oscillatory regularities described by E=ħωTL(n+1/2).
- Oscillatory frequency ωTL often coincides with Raman spectrum line frequencies.
- One to five oscillatory series observed, dependent on crystal structure.
- Polaron nature of charge carriers is proposed as the cause of these regularities.
AI-generated from the title and abstract; the full text is not read.
Abstract
The article presents the results of the author's research into the energy spectra of traps in over 30 ordered materials -including metal oxide crystals, halide perovskites, alkali halide crystals, and specific types of polymers -using an improved fractional thermoluminescence (FTL) method.The trap energies exhibit oscillatory regularities described by E=ћωTL(n+1/2), where, in most cases, ωTL coincides with the frequencies of the Raman spectrum lines.Depending on the crystal structure, we observed one to five oscillatory series.The oscillator regularities in trap energies are attributed to the polaron nature of the charge carriers.We propose a polaron model of traps in inorganic crystals and a one-dimensional (1D) trap model for organic linear conjugated polymers.Part I describes thermoluminescence methods for investigating trap energy spectra, presents the experimental results, and formulates the polaron trap model.
The authors' abstract, as published at the source. Ukrainian Journal of Physical Optics, 2026 · DOI ↗
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Field: Materials Chemistry
Materials ChemistryMaterials Science