{"created":"2023-05-15T10:01:19.898329+00:00","id":5869,"links":{},"metadata":{"_buckets":{"deposit":"b4895237-460f-4a43-b301-02e595858052"},"_deposit":{"created_by":5,"id":"5869","owner":"5","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"5869"},"status":"published"},"_oai":{"id":"oai:miyazaki-u.repo.nii.ac.jp:00005869","sets":["73","73:36","73:36:330","73:36:330:329"]},"author_link":["28145","31477","7289","7290","31478","31482"],"item_10002_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"エキテキ エピタキシーホウ ニ ヨリ サクセイ サレタGaAs QDs ノ サイズ ガ アタエル フォトルミネッセンス ノ オンド イゾン セイ ヘノ エイキョウ","subitem_alternative_title_language":"ja-Kana"}]},"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-07","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"54","bibliographicPageStart":"51","bibliographicVolumeNumber":"48","bibliographic_titles":[{"bibliographic_title":"宮崎大学工学部紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"Memoirs of Faculty of Engineering, University of Miyazaki","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We observed an additional blue-shift of photoluminescence (PL) peak energy in the temperature dependence above 150 K in addition to a well-known red-shift in the GaAs Quantum Dots (QDs) grown by a droplet epitaxy method. Although a red-shift has been explained by a steady state model with the QD size distribution, carrier capture, relaxation, and re-trapping, a blue-shift could not be explained. The frequencies of height and diameter of QDs from an atomic force microscopy observation were investigated and calculated transition energies for each QD size. A calculated maximum frequency for GaAs QDs showed a good agreement with the obtained PL spectrum. Therefore, we concluded that the PL spectrum was caused by the ensemble of several size of QDs. The PL spectrum at 4 K could be decomposed into three peaks with a Gaussian function, corresponding to the large-, middle-, and small-size QDs, respectively. Although the integrated PL intensity for middle-size QDs was the largest up to 200 K, it suddenly decreased and those for middle- and small-size QDs became comparable. As a result, the PL energy as the ensemble of QDs moved to the higher energy side. We concluded that this caused the observed additional blue-shift of PL peak.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宮崎大学工学部","subitem_publisher_language":"ja"},{"subitem_publisher":"Faculty of Engineering, University of 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