| Conţinutul numărului revistei |
| Articolul precedent |
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 SM ISO690:2012ZALAMAI, Victor, STAMOV, Ivan, SYRBU, Nicolae. Interference of exciton-polariton waves in GaSe nanocrystals. In: Materials Today Communications, 2021, nr. 27, p. 0. ISSN 2352-4928. DOI: https://doi.org/10.1016/j.mtcomm.2021.102355 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
 Materials Today Communications |
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| Numărul 27 / 2021 / ISSN 2352-4928 | ||||||
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| DOI:https://doi.org/10.1016/j.mtcomm.2021.102355 | ||||||
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Absorption, reflection, photoluminescence and wavelength modulation transmission spectra of GaSe single crystals were investigated in temperature rage 300 – 10 K. From fitting of contours of excitonic reflection spectra parameters of excitons as energy of transversal exciton ω0 = 2.1212 eV, longitudinal transversal splitting ωLT = 2.3 meV, effective mass M = 2.5m0, background permittivity εb= 5.2 and damping constant γ = 1.4 were determined. Effective masses of electrons (mC1 = 0.37m0) and holes (mV1 = 2.13m0) in the Brillouin zone center were estimated. An interference of waves of upper and lower branches of exciton-polaritons was found out in wavelength modulation transmission spectra of GaSe nanocrystals. |
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| Cuvinte-cheie Exciton polaritons, Gallium selenide, Interference of additional waves, Optical spectra, Polaritonic branches |
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Dublin Core Export
<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Zalamai, V.V.</dc:creator> <dc:creator>Stamov, I.G.</dc:creator> <dc:creator>Sîrbu, N.N.</dc:creator> <dc:date>2021-06-01</dc:date> <dc:description xml:lang='en'><p>Absorption, reflection, photoluminescence and wavelength modulation transmission spectra of GaSe single crystals were investigated in temperature rage 300 – 10 K. From fitting of contours of excitonic reflection spectra parameters of excitons as energy of transversal exciton ω<sub>0</sub> = 2.1212 eV, longitudinal transversal splitting ω<sub>LT</sub> = 2.3 meV, effective mass M = 2.5m<sub>0</sub>, background permittivity ε<sub>b</sub><sup>=</sup> 5.2 and damping constant γ = 1.4 were determined. Effective masses of electrons (m<sub>C1</sub> = 0.37m<sub>0</sub>) and holes (m<sub>V1</sub> = 2.13m<sub>0</sub>) in the Brillouin zone center were estimated. An interference of waves of upper and lower branches of exciton-polaritons was found out in wavelength modulation transmission spectra of GaSe nanocrystals.</p></dc:description> <dc:identifier>10.1016/j.mtcomm.2021.102355</dc:identifier> <dc:source>Materials Today Communications (27) 0-0</dc:source> <dc:subject>Exciton polaritons</dc:subject> <dc:subject>Gallium selenide</dc:subject> <dc:subject>Interference of additional waves</dc:subject> <dc:subject>Optical spectra</dc:subject> <dc:subject>Polaritonic branches</dc:subject> <dc:title>Interference of exciton-polariton waves in GaSe nanocrystals</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>
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