- Tytuł:
- Strong Photoluminescence Fluctuations in Laser-Thinned Few-Layer WS₂
- Autorzy:
-
Bala, Ł.
Łacińska, E.
Nogajewski, K.
Molas, M.
Wysmołek, A.
Potemski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1398573.pdf
- Data publikacji:
- 2016-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.22.-f
71.35.-y
78.55.-m
78.30.-j - Opis:
- We present results of μ-Raman and μ-photoluminescence study of few-layer WS₂ flakes that have been locally thinned down by a focused laser beam. The Raman spectroscopy measurements prove that the investigated flake was locally thinned down to a monolayer. Interestingly, μ-photoluminescence experiments allowed us to observe huge intensity fluctuations at the boundary of laser-thinned region. Similar effects were found at the edges of a WS₂ bilayer flake, which has not been subjected to laser-thinning. The origin of the observed time evolution of the photoluminescence response is discussed in terms of potential fluctuations resulting from light-induced changes of the charge state of defects.
- Źródło:
-
Acta Physica Polonica A; 2016, 130, 5; 1176-1178
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł