Temperature dependence of the optical absorption spectra of InP/ZnS quantum dots / Savchenko S.S., Vokhmintsev A.S., Weinstein I.A. // Technical Physics Letters. - 2017. - V. 43, l. 3. - P. 297-300.

ISSN:

10637850

Type:

Article

Abstract:

The optical-absorption spectra of InP/ZnS (core/shell) quantum dots have been studied in a broad temperature range of T = 6.5–296 K. Using the second-order derivative spectrophotometry technique, the energies of optical transitions at room temperature were found to be E1 = 2.60 ± 0.02 eV (for the first peak of excitonic absorption in the InP core) and E2 = 4.70 ± 0.02 eV (for processes in the ZnS shell). The experimental curve of E1(T) has been approximated for the first time in the framework of a linear model and in terms of the Fan’s formula. It is established that the temperature dependence of E1 is determined by the interaction of excitons and longitudinal acoustic phonons with hω = 15 meV. © 2017, Pleiades Publishing, Ltd.

Author keywords:

Index keywords:

нет данных

DOI:

10.1134/S1063785017030221

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-85017525227&doi=10.1134%2fS1063785017030221&partnerID=40&md5=0f2b36d43f9831102bc9aa79a9a5ab22

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85017525227&doi=10.1134%2fS1063785017030221&partnerID=40&md5=0f2b36d43f9831102bc9aa79a9a5ab22
Affiliations	NANOTECH Centre, Ural Federal University, Yekaterinburg, Russian Federation
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Correspondence Address	Weinstein, I.A.; NANOTECH Centre, Ural Federal UniversityRussian Federation; email: i.a.weinstein@urfu.ru
Publisher	Maik Nauka-Interperiodica Publishing
Language of Original Document	English
Abbreviated Source Title	Tech. Phys. Lett.
Source	Scopus