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2 results on '"M, Goryca"'

1. Temperature dependence of photoluminescence lifetime of atomically-thin WSe

Author

A, Łopion, M, Goryca, T, Smoleński, K, Oreszczuk, K, Nogajewski, M R, Molas, M, Potemski, and P, Kossacki

Subjects
Luminescent Measurements, Temperature, Chalcogens, Tungsten Compounds
Abstract

At cryogenic temperatures, the photoluminescence (PL) spectrum of monolayer WSe

Published
2019

2. Temperature dependence of photoluminescence lifetime of atomically-thin WSe2 layer.

Author

A Łopion, M Goryca, T Smoleński, K Oreszczuk, K Nogajewski, M R Molas, M Potemski, and P Kossacki

Subjects
*PHOTOLUMINESCENCE, *TEMPERATURE, *EXCITON theory, *MONOMOLECULAR films, *RELAXATION for health
Abstract

At cryogenic temperatures, the photoluminescence (PL) spectrum of monolayer WSe2 features a number of lines related to the recombination of so-called localized excitons (LEs). The intensity of these lines strongly decreases with increasing temperature. In order to understand the mechanism behind this phenomenon we carried out a time-resolved experiment, which revealed a similar trend in the PL decay time. Our results identify the opening of additional non-radiative relaxation channels as a primary cause of the observed temperature quenching of the LEs’ PL. [ABSTRACT FROM AUTHOR]

Published
2020
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