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https://irlib.pccu.edu.tw/handle/987654321/20529
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| 題名: | Origin of the anomalous temperature evolution of photoluminescence peak energy in degenerate InN nanocolumns |
| 作者: | Shih, HC (Shih, Han-Chang)
Wei, PC (Wei, Pai-Chun)
Chattopadhyay, S (Chattopadhyay, Surojit)
Lin, FS (Lin, Fang-Sheng)
Hsu, CM (Hsu, Chih-Ming)
Jou, S (Jou, Shyankay)
Chen, JT (Chen, Jr-Tai)
Huang, PJ (Huang, Ping-Jung)
Hsu, HC (Hsu, Hsu-Cheng)
Chen, KH (Chen, Kuei-Hsien)
Chen, LC (Chen, Li-Chyong) |
| 貢獻者: | 化材所 |
| 日期: | 2009 |
| 上傳時間: | 2011-11-30 14:10:13 (UTC+8) |
| 摘要: | Photoluminescence (PL) behaviour in InN nanocolumns reveal decreasing, increasing and near invariant peak energies (E(PL)) as a function of temperature. Samples, having EPL similar to 0.730 eV at 20 K, showed temperature invariance of EPL. Samples possessing EPL on the lower and higher energy side of 0.730 eV demonstrate a normal redshift and anomalous blueshift, respectively, with increasing temperature. This temperature evolution can be effectively explained on the basis of a competition between a conventional red shift from lattice dilation, dominant for low carrier density sample, on one hand, and a blue shift of the electron and hole quasi Fermi-level separation, dominant for high carrier density samples, on the other. (c) 2009 Optical Society of America |
| 顯示於類別: | [化學工程與材料工程學系暨碩士班] 期刊論文
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