Blue emission stimulation in mixture of ZnO and carbon nanocrystals at mechanical processing

T. Torchynska, B. Perez Millan, E. Velazquez Lozada, M. Kakazey, M. Vlasova

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The photoluminescence and X ray diffraction of the mixture of ZnO + 1.0% C nanocrystals (NCs) have been studied before and after intensive mechanical processing (MP) with the aim to identify the nature of emission bands and radiative defects. The study reflects the diversity of physical processes occurring during MP: the destruction of primary ZnO NC aggregates, crushing individual ZnO NCs from the size of 250 nm down to 14 nm, the interaction of carbon atoms with oxygen in a treatment chamber and with the surface of ZnO nanoparticles etc. The new PL band peaked at 2.84-2.95 eV has been revealed in PL spectra after 9 min of MP. The origin of this emission in ZnO has not been conclusively established. The new PL band peaked at 2.84-2.95 eV has been studded and its nature is discussed.

Translated title of the contributionEstimulación de emisión azul en mezcla de ZnO y nanocristales de carbono en procesamiento mecánico
Original languageEnglish
Title of host publicationWide Bandgap Semiconductor Materials and Devices 16
EditorsS. Jang, K. Shenai, G. W. Hunter, F. Ren, C. O'Dwyer, K. C. Mishra
PublisherElectrochemical Society Inc.
Pages297-303
Number of pages7
Edition1
ISBN (Electronic)9781607685913
DOIs
StatePublished - 2015
EventSymposium on Wide Bandgap Semiconductor Materials and Devices 16 - 227th ECS Meeting - Chicago, United States
Duration: 24 May 201528 May 2015

Publication series

NameECS Transactions
Number1
Volume66
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Wide Bandgap Semiconductor Materials and Devices 16 - 227th ECS Meeting
Country/TerritoryUnited States
CityChicago
Period24/05/1528/05/15

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