Optical Anisotropy in InP String-like Aligned Quantum Dots

Title
Optical Anisotropy in InP String-like Aligned Quantum Dots
Authors
Y Kim송진동한일기
Keywords
InP; Quantum Dots; Anisotropy; ZnMgO; Atomic layer deposition; Photoluminescence
Issue Date
2014-06
Publisher
Journal of the Korean Physical Society
Citation
VOL 64, NO 11, 1697-1700
Abstract
InP quantum dots were grown by using the molecular beam epitaxy technique. The quantum dots were connected and composed a string-like one-dimensional structure in the [1-10] crystal direction due to the strain field along the [110] direction. Two prominent photoluminescence transitions from normal quantum dots and string-like one-dimensional structures were observed and showed strong optical emission anisotropy. Both peaks also showed blue-shifts while rotating the emission polarization from the [1-10] to the [110] direction. Such optical transition behaviors are the consequence of valence band mixing caused by the strain field along the [110] crystal direction.
URI
http://pubs.kist.re.kr/handle/201004/48512
ISSN
03744884
Appears in Collections:
KIST Publication > Article
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