C. Robert, C. Cornet, K. Pereira da Silva, P. Turban, S. Mauger, T. Nguyen Thanh, J. Even, J. Jancu, M. Perrin, H. Folliot, T. Rohel, S. Tricot, A. Balocchi, P. Barate, X. Marie, P. Koenraad, M. Alonso, A. Goi, N. Bertru, O. Durand, A. Le Corre
{"title":"Nature of the optical transition in (In,Ga)As(N)/GaP quantum dots (QDs): Effect of QD size, indium composition and nitrogen incorporation","authors":"C. Robert, C. Cornet, K. Pereira da Silva, P. Turban, S. Mauger, T. Nguyen Thanh, J. Even, J. Jancu, M. Perrin, H. Folliot, T. Rohel, S. Tricot, A. Balocchi, P. Barate, X. Marie, P. Koenraad, M. Alonso, A. Goi, N. Bertru, O. Durand, A. Le Corre","doi":"10.1109/ICIPRM.2013.6562587","DOIUrl":null,"url":null,"abstract":"The structural properties of (In,Ga)As/GaP quantum dots (QDs) are studied by plane view and cross scanning tunneling microscopy. Time-resolved and pressure dependent photoluminescence experiments show a ground optical transition of indirect type. Mixed k.p/tight-binding simulations indicate a possible indirect to direct crossover depending on indium content and QD size. The incorporation of nitrogen in QDs is finally shown.","PeriodicalId":120297,"journal":{"name":"2013 International Conference on Indium Phosphide and Related Materials (IPRM)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2013-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 International Conference on Indium Phosphide and Related Materials (IPRM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIPRM.2013.6562587","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The structural properties of (In,Ga)As/GaP quantum dots (QDs) are studied by plane view and cross scanning tunneling microscopy. Time-resolved and pressure dependent photoluminescence experiments show a ground optical transition of indirect type. Mixed k.p/tight-binding simulations indicate a possible indirect to direct crossover depending on indium content and QD size. The incorporation of nitrogen in QDs is finally shown.
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