Ukrainian Journal of Physical Optics


2027 Volume 28, Issue 1


ISSN 1816-2002 (Online), ISSN 1609-1833 (Print)

OSCILLATORY REGULARITY IN THE ENERGY SPECTRUM OF TRAPS IN ORDERED MEDIA. II. DISCUSSION OF THE MODEL (CRITICAL REVIEW AND THEORETICAL PERSPECTIVE)

A. Gumenyuk and S. Kutovyy

Author Information
1,2Gumenyuk, A. SCOPUS logo, 1Kutovyy, S. ORCID logo SCOPUS logo,
1Taras Shevchenko National University of Kyiv, Faculty of Physics, 64/13 Volodymyrska Street, 01601 Kyiv, Ukraine;
2Institute of Physics of the National Academy of Sciences of Ukraine, 46 Nauky Avenue, 03028, Kiev, Ukraine

ABSTRACT

This review describes the study of several materials of different types using the improved fractional thermoluminescence method. It is shown that the activation energies of traps exhibit oscillatory regularities, E = ћωTL(n+1/2), in which most values of ωTL coincide with the frequencies of the Raman spectrum lines. Part I of the review describes the applied thermoluminescence (TL) methods and presents experimental results. We formulated the polaron trap model. Part II describes the TL mechanisms corresponding to the proposed model in different material types studied. The reasons for activation energies that are integer or half-integer multiples of ћωTL are discussed. The concept of the frequency factor was clarified, and its influence on TL processes was described

Keywords: thermoluminescence, Raman scattering, polaron, oscillatory regularity

UDC: 535.377; 535.375

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    В огляді описано дослідження ряду матеріалів різних типів удосконаленим методом фракційної термолюмінесценції. Показано, що енергії активації пасток утворюють коливальні закономірності E=ћωTL(n+1/2), в яких більшість значень ωTL збігаються з частотами ліній спектру комбінаційного розсіювання. У частині I огляду описано застосовані методи термолюмінесценції (TЛ), представлено експери¬ментальні результати. Було сформульовано поляронну модель пасток. У частині II огляду описано механізми TЛ, що відповідають запропонованій моделі в досліджуваних матеріалах різних типів. Обговорюються причини існування енергій активації, кратних цілим та напівцілим значенням ћωTL. Описано вплив частотного фактора на процеси TЛ.

    Ключові слова: термолюмінесценція, комбінаційне розсіювання світла, полярон, коливальна регулярність

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