Tytuł pozycji:
Emission of Self-Assembled CdTe/ZnTe Quantum Dot Samples with Different Cap Thickness
- Tytuł:
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Emission of Self-Assembled CdTe/ZnTe Quantum Dot Samples with Different Cap Thickness
- Autorzy:
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Nowak, S.
- Powiązania:
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https://bibliotekanauki.pl/articles/1791338.pdf
- Data publikacji:
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2009-11
- Wydawca:
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Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
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78.55.Et
78.67.Hc
- Źródło:
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Acta Physica Polonica A; 2009, 116, 5; 890-892
0587-4246
1898-794X
- Język:
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angielski
- Prawa:
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Wszystkie prawa zastrzeżone. Swoboda użytkownika ograniczona do ustawowego zakresu dozwolonego użytku
- Dostawca treści:
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Biblioteka Nauki
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Przejdź do źródła  Link otwiera się w nowym oknie
Photoluminescence measurements on CdTe/ZeTe self-assembled quantum dot samples with different cap thickness values (18-110nm) were performed at 1.8 K at varying excitation levels. The shape of macrophotoluminescence spectra did not altered notably with the excitation power. The spectra exhibited interference fringes related to the total barrier thickness. Simulation of the fringes confirmed the barrier thickness determined during the growth. The minimal amplitude of the fringes was observed for the cap thickness corresponding approximately to a quarter of the emission wavelength in the barrier material. Maximum emission intensity occurred for the largest thickness of the cap, i.e., 110 nm. We attribute this result to the influence of the surface recombination centers.