Redshifted and blueshifted photoluminescence emission of InAs/InP quantum dots upon amorphization of phase change material

Nurrul Syafawati Binti Humam, Yu Sato, Motoki Takahashi, Shohei Kanazawa, Nobuhiro Tsumori, Philippe Regreny, Michel Gendry, Toshiharu Saiki

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We present the mechanisms underlying the redshifted and blueshifted photoluminescence (PL) of quantum dots (QDs) upon amorphization of phase change material (PCM). We calculated the stress and energy shift distribution induced by volume expansion using finite element method. Simulation result reveals that redshift is obtained beneath the flat part of amorphous mark, while blueshift is obtained beneath the edge region of amorphous mark. Simulation result is accompanied by two experimental studies; two-dimensional PL intensity mapping of InAs/InP QD sample deposited by a layer of PCM, and an analysis on the relationship between PL intensity ratio and energy shift were performed.

本文言語English
ページ(範囲)14830-14839
ページ数10
ジャーナルOptics Express
22
12
DOI
出版ステータスPublished - 2014 6 16

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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