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The impact of nanoperforation on persistent photoconductivity and optical quenching effects in suspended GaN nanomembranes

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dc.contributor.author VOLCIUC, Olesea
dc.contributor.author BRANISTE, Tudor
dc.contributor.author TIGINYANU, Ion
dc.contributor.author STEVENS-KALCEFF, Marion A.
dc.contributor.author EBELING, Jakob
dc.contributor.author ASCHENBRENNER, Timo
dc.contributor.author HOMMEL, Detlef
dc.contributor.author URSAKI, Veaceslav
dc.contributor.author GUTOWSKI, Jürgen
dc.date.accessioned 2020-10-21T09:10:48Z
dc.date.available 2020-10-21T09:10:48Z
dc.date.issued 2013
dc.identifier.citation VOLCIUC, Olesea, BRANISTE, Tudor, TIGINYANU, Ion et al. The impact of nanoperforation on persistent photoconductivity and optical quenching effects in suspended GaN nanomembranes. In: Applied Physics Letters. 2013, V. 103, Iss. 23, pp. 243113. ISSN ‎‎0003-6951. en_US
dc.identifier.uri https://doi.org/10.1063/1.4847735
dc.identifier.uri http://repository.utm.md/handle/5014/10855
dc.description Access full text - https://doi.org/10.1063/1.4849836 en_US
dc.description.abstract We report on fabrication of suspended ~15 nm thick GaN membranes nanoperforated in an ordered fashion using direct writing of negative charges by focused ion beam and subsequent photoelectrochemical etching of GaN epilayers. Both continuous and nanoperforated membranes exhibit persistent photoconductivity (PPC), which can be optically quenched under excitation by 546 nm radiation. Optical quenching of PPC occurs also under relatively intense intrinsic excitation of nanoperforated membranes by 355 nm radiation at T < 100 K. The proposed explanation is based on strong surface localization of charge carriers in nanoperforated membranes and UV-induced reactions occurring at surface states under intense intrinsic excitation. en_US
dc.language.iso en en_US
dc.publisher AIP Publishing LLC en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject suspended membranes en_US
dc.subject epilayers en_US
dc.subject nanoperforated membranes en_US
dc.subject membranes en_US
dc.title The impact of nanoperforation on persistent photoconductivity and optical quenching effects in suspended GaN nanomembranes en_US
dc.type Article en_US


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