000057847 001__ 57847
000057847 005__ 20190529115206.0
000057847 0247_ $$2doi$$a10.1103/PhysRevB.90.075307
000057847 0248_ $$2sideral$$a89984
000057847 037__ $$aART-2014-89984
000057847 041__ $$aeng
000057847 100__ $$aFontana, Y.
000057847 245__ $$aExciton Footprint of Self-assembled AlGaAs Quantum Dots in Core-Shell Nanowires
000057847 260__ $$c2014
000057847 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057847 5203_ $$aQuantum-dot-in-nanowire systems constitute building blocks for advanced photonics and sensing applications. The electronic symmetry of the emitters impacts their function capabilities. Here we study the fine structure of gallium-rich quantum dots nested in the shell of GaAs-Al0.51 Ga0.49 As core-shell nanowires. We used optical spectroscopy to resolve the splitting resulting from the exchange terms and extract the main parameters of the emitters. Our results indicate that the quantum dots can host neutral as well as charged excitonic complexes and that the excitons exhibit a slightly elongated footprint, with the main axis tilted with respect to the long axis of the host nanowire. GaAs-AlxGa1-xAs emitters in a nanowire are particularly promising for overcoming the limitations set by strain in other systems, with the benefit of being integrated in a versatile photonic structure.
000057847 536__ $$9info:eu-repo/grantAgreement/EC/FP7/312483/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM 2
000057847 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000057847 590__ $$a3.736$$b2014
000057847 591__ $$aPHYSICS, CONDENSED MATTER$$b14 / 67 = 0.209$$c2014$$dQ1$$eT1
000057847 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000057847 700__ $$aCorfdir, P.
000057847 700__ $$aVan Hattem, B.
000057847 700__ $$aRusso-Averchi, E.
000057847 700__ $$aHeiss, M.
000057847 700__ $$aSonderegger, S.
000057847 700__ $$0(orcid)0000-0002-6761-6171$$aMagen, C.$$uUniversidad de Zaragoza
000057847 700__ $$aArbiol, J.
000057847 700__ $$aPhillips, R.T.
000057847 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000057847 773__ $$g90 (2014), 075307 [9 pp]$$pPhys. Rev. B, Condens. matter mater. phys.$$tPhysical Review B. Condensed Matter and Materials Physics$$x1098-0121
000057847 8564_ $$s987802$$uhttps://zaguan.unizar.es/record/57847/files/texto_completo.pdf$$yVersión publicada
000057847 8564_ $$s130690$$uhttps://zaguan.unizar.es/record/57847/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000057847 909CO $$ooai:zaguan.unizar.es:57847$$particulos$$pdriver
000057847 951__ $$a2019-05-29-11:38:22
000057847 980__ $$aARTICLE