Kim, Inhong Kiba, Takayuki Murayama, Akihiro Song, Jin Dong Kyhm, Kwangseuk 2024-01-20T07:01:37Z 2024-01-20T07:01:37Z 2021-09-05 2015-06 1567-1739 https://pubs.kist.re.kr/handle/201004/125383 Optical anisotropy of self-assembled elliptical InP quantum dots has been investigated in terms of the polarization dependence of excitons. Although large size inhomogeneity is present, two kinds of characteristic quantum dots, which are classified into large and small quantum dots, were found in terms of the polarization anisotropy. We have confirmed that the large quantum dots are more pronounced in the polarization anisotropy, where the degree of linear polarization for the large quantum dots is significantly larger (similar to 60%) than that for the small ones (similar to 36%). The effective shape of quantum dots is also estimated by using the size dependence of oscillator strength, which is in agreement with the AFM image. We also suggest that the anisotropy of exciton oscillator strength can be modified via the dipole edipole interaction between nearest exciton dipoles. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV OPTICAL ANISOTROPY PHOTOLUMINESCENCE Polarization anisotropy of exciton in self-assembled elliptical InP/InGaP quantum dots Article 10.1016/j.cap.2015.03.002 1 CURRENT APPLIED PHYSICS, v.15, no.6, pp.733 - 738 CURRENT APPLIED PHYSICS 15 6 733 738 scie scopus kci ART002000830 000353391400013 2-s2.0-84938521958 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article OPTICAL ANISOTROPY PHOTOLUMINESCENCE Exciton Oscillator strength InP quantum dots Time-resolved PL Polarization dependence