Two-dimensional electron gas related emissions in ZnMgO/ZnO heterostructures

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dc.contributor.authorChen, Hui
dc.contributor.authorGu, Shulin
dc.contributor.authorLiu, Jiagao
dc.contributor.authorYe, Jiandong
dc.contributor.authorTang, Kun
dc.contributor.authorZhu, Shunming
dc.contributor.authorZheng, Youdou
dc.date.accessioned2015-12-11T01:09:55Z
dc.date.available2015-12-11T01:09:55Z
dc.date.issued2011-11-22
dc.date.updated2016-02-24T11:26:31Z
dc.description.abstractRadiative recombination of two-dimensional electron gas(2DEG), induced by polarization and validated by Hall effect measurements, is investigated in ZnMgO/ZnO heterostructures grown by metal-organic chemical vapor deposition. The Mg composition, the depth profile distribution of Mg, the residual strain in ZnMgO caplayer, and the thickness of caplayer all significantly influence the 2DEG-related transitions in ZnMgO/ZnO heterostructures. Below or above ZnO donor bound exciton, three additional broad emissions persisting up to 100 K are assigned to the spatially indirect transitions from 2DEG electrons to the photoexcited holes towards the ZnO flat-band region or remaining at the heterointerface.
dc.description.sponsorshipResearch is supported by the State Key Program for Basic Research of China under Grant No. 2011CB302003 and National Natural Science Foundation of China (Nos. 61025020 and 60990312).en_AU
dc.identifier.issn0003-6951en_AU
dc.identifier.urihttp://hdl.handle.net/1885/70371
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 11/12/15). Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.3662964
dc.sourceApplied Physics Letters
dc.subjectKeywords: Depth profile distributions; Donor-bound exciton; Flat band; Hall effect measurement; Hetero interfaces; Indirect transition; Photoexcited holes; Radiative recombination; Residual strains; Two-dimensional electron gas (2DEG); ZnMgO; ZnO; Crystals; Gas emi
dc.titleTwo-dimensional electron gas related emissions in ZnMgO/ZnO heterostructures
dc.typeJournal article
local.bibliographicCitation.issue21en_AU
local.bibliographicCitation.lastpage3
local.bibliographicCitation.startpage211906en_AU
local.contributor.affiliationChen, Hui, Nanjing University, Chinaen_AU
local.contributor.affiliationGu, Shulin, Nanjing University, Chinaen_AU
local.contributor.affiliationLu, Jiagao, Nanjing University, Chinaen_AU
local.contributor.affiliationYe, Jiandong, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationTang, Kun, Nanjing University, Chinaen_AU
local.contributor.affiliationZhu, Shunming, Nanjing University, Chinaen_AU
local.contributor.affiliationZheng, Youdou, Nanjing University, Chinaen_AU
local.contributor.authoremailjiandong.ye@anu.edu.auen_AU
local.contributor.authoruidu4920827en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor091203en_AU
local.identifier.absseo970102en_AU
local.identifier.ariespublicationu4920827xPUB1en_AU
local.identifier.citationvolume99en_AU
local.identifier.doi10.1063/1.3662964en_AU
local.identifier.scopusID2-s2.0-81855167414
local.identifier.uidSubmittedByu3488905en_AU
local.publisher.urlhttps://www.aip.org/en_AU
local.type.statusPublished Versionen_AU

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