한국진공학회:학술대회논문집 (Proceedings of the Korean Vacuum Society Conference)
- 한국진공학회 2014년도 제46회 동계 정기학술대회 초록집
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- Pages.288.2-288.2
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- 2014
Optical Emission Anisotropy in InP Aligned Quantum Dots
- Shin, Y.H. (Department of Applied Physics and Institute of Nanoscience and Biotechnology, Dankook University) ;
- Kim, Yongmin (Department of Applied Physics and Institute of Nanoscience and Biotechnology, Dankook University) ;
- Song, J.D. (Korea Institute of Science and Technology) ;
- Choi, Subong (Department of Physics, Incheon University)
- 발행 : 2014.02.10
초록
InP quantum dots were grown by using the molecular beam epitaxy technique. Quantum dots are connected and composed string-like one-dimensional structure due to the strain field along [110] crystal direction. Two prominent photoluminescence transitions from normal quantum dots and string-like one-dimensional structure were observed which show strong optical anisotropy along [1-10] and [110] crystal directions. Both peaks also showed blue-shift while rotating emission polarization from [1-10] to [110] direction. Such optical transition behaviors are the consequence of the valence band mixing caused by strain field along the [110] crystal direction.