Anomalous temperature-dependent bimodal size evolution of InAs quantum dots on vicinal GaAs(100) substrates
| Data(s) |
2006
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| Resumo |
Temperature-dependent bimodal size evolution of InAs quantum dots on vicinal GaAs(100) substrates grown by metalorganic chemical vapor deposition (MOCVD) is studied. An abnormal trend of the evolution on temperature is observed. With the increase of the growth temperature, while the density of the large dots decreases continually, that of the small dots first grows larger when temperature was below 520 degrees C, and then there is a sudden decrease at 535 degrees C. Photoluminescence (PL) studies show that QDs on vicinal substrates have a narrower PL line width, a longer emission wavelength and a larger PL intensity. Temperature-dependent bimodal size evolution of InAs quantum dots on vicinal GaAs(100) substrates grown by metalorganic chemical vapor deposition (MOCVD) is studied. An abnormal trend of the evolution on temperature is observed. With the increase of the growth temperature, while the density of the large dots decreases continually, that of the small dots first grows larger when temperature was below 520 degrees C, and then there is a sudden decrease at 535 degrees C. Photoluminescence (PL) studies show that QDs on vicinal substrates have a narrower PL line width, a longer emission wavelength and a larger PL intensity. zhangdi于2010-03-29批量导入 zhangdi于2010-03-29批量导入 Zhejiang Univ.; Royal Inst Technol.; Chinese Univ Hong Kong.; SUNY Buffalo.; IEEE LEOS. Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China Zhejiang Univ.; Royal Inst Technol.; Chinese Univ Hong Kong.; SUNY Buffalo.; IEEE LEOS. |
| Identificador | |
| Idioma(s) |
英语 |
| Publicador |
IEEE 345 E 47TH ST, NEW YORK, NY 10017 USA |
| Fonte |
Liang, S (Liang, S.); Zhu, HL (Zhu, H. L.); Zhou, JT (Zhou, J. T.); Cheng, YB (Cheng, Y. B.); Pan, JQ (Pan, J. Q.); Zhao, LJ (Zhao, L. J.); Wang, W (Wang, W.) .Anomalous temperature-dependent bimodal size evolution of InAs quantum dots on vicinal GaAs(100) substrates .见：IEEE .Proceedings of International Symposium on Biophotonics Nanophotonics and Metamaterials,345 E 47TH ST, NEW YORK, NY 10017 USA ,2006,302-305 |
| Palavras-Chave | #光电子学 #CHEMICAL-VAPOR-DEPOSITION |
| Tipo |
会议论文 |
