Temperature and density dependence of exciton lifetimes in GaAs/AlGaAs multiple quantum wells |
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| Authors: | Jang Hee Chu Jung-Chul Seo Eun-Joo Shin Sung-Kyu Yu Dongho Kim Young-Nam Hwang Seung-Han Park Ung Kim Pjotr S Kop'ev |
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| Institution: | (1) Spectroscopy Group, Korea Research Institute of Standards and Science, 305-600 Taejon, Korea;(2) Department of Physics, Yonsei University, 120-749 Seoul, Korea;(3) A. F. Ioffe Physico-Technical Institute, 194021 St Petersburg, Russia |
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| Abstract: | The photoluminescence linewidths and excition lifetimes of free excitons in GaAs/AlGaAs multiple quantum wells were systematically investigated as a function of temperature, quantum well width, and carrier density. The experimental results showed that the exciton decay processes were strongly related to the linewidth of the exciton and the exciton binding energy. |
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