SPECTRA OF ZnO SUPERDISPERSED PARTICLES POLARIZED IN AN ELECTRIC FIELD
Abstract
This paper discusses the spectra of photo - and ion-luminescence (PL and IL) of ultrafine crystals (UDC) ZnO deposited on the substrate in an electric field. UDC ZnO was obtained by separation in a water emulsion industrial phosphor (K-56). The fluorescence spectra for initial sample have a relatively intense broad band in the visible region, which during the deposition of the initial sample in electric field becomes less intense. PL spectra for ZnO UDC have weak intensity bands in the visible region. And UDC PL spectra
for ZnO deposited in an electric field, and do not have this band. While this exciton band with λмах=401nm for all the samples remains almost unchanged. When exposed to samples of oxygen ions spectra were obtained ionoluminescence, which differ from the fluorescence spectra. The analysis of the spectral characteristics obtained under the influence of ions sour-kind of the ZnO crystals shows that the intensity of the broad band in the visible region responsible for the defects formed by oxygen ions.
Downloads
References
Burakov V.S., Tarasenko N.V., Nevar E.A., Nedelko M.I. Morphology and optical properties of zinc oxide nanostructures synthesized by thermal and electric-spraying //Technical Physics.-2011.- Vol.81. - Vyp.2. -P.89-97.
Chaliapina A.Y., Khokhlov E.M., Polyakova L.A. AY Solovyova A.Yu. Synthesis and study of the properties of nanoparticles of zinc oxide// Vestnik MITHT.-2011.-Vol.6. - No.6.-P.102-104 (in Russian).
Ostafiychuk B.K., Zhirovetsky V.M., Kotlyarchuk B.K., Moisa M.I., Popovych D.I., Serednitsky A.S. The study of processes the formation of nano ZnO and on its properties // Physics and Chemistry of Solid State.- 2008.-Vol.9. - No.4.-P.728-731(in Russian).
Michael Sushchikh, Vladislav Styrov, Vladimir Tyutyunnikov, Nick Cordella. Surface Luminescence of Polycrystallin Zinc oxide Excited by Hydrogen Atoms // Mater. Res. Symp. Proc. - 2007. - Vol.957. - P.0957-K07-02.
Vakalov D.S., Krandievsky S.O., Mihneev L.V. The study of recombination centers of ZnO nanoparticles in the methods of optical, photoelectric and luminescent spectroscopy // Vestnik NCSTU.-2011. - No.4(29).-P.6-11(in Russian).
Kuzmina I.P., Nikitenko V.A. Zinc oxide. Preparation and Optical Properties. - M.: Nauka, 1984.-166p (in Russian).
Nikitenko V.A. Optics and Spectroscopy of Point Defects in ZnO //Proceeding of interational NATO Workshop “Zinc oxide as a material for micro-and optoelectronic application.”-Shringer, 2005.-P.69-81.
Kaidashev V.E., Kaidashev E.M., Perez M., Monteiro T., Correia M.R., Sobolev N.A. Optical and structural properties of the nanorods ZnO, obtained by pulsed laser deposition without catalyst // Technical Physics.-2009.- Vol.79. - Vyp.11.- P.45-49.
Li L.E., Demianets L.N. Room-temperature excitonic lasing in Zno tetrapod-like crystallites // Opt.materials. - 2008. - Vol.30. No.7.-P.1074-1078.
Lyanguzov N.V., Kaidashev V.E., etc. The use of different catalysts for micro-laser deposition and ZnO nanorods // Technical Physics. - 2012. - Vol.82. -Vyp.4. - P.108-116.
Gusev A.I. Nanomaterials, nanostructures, nanotechnology.- M.: Fizmatlit, 2005. - 416 s. (in Russian).
Andrievsky R.A., Raguli A.V. Nanostructured materials.- M .: Izd.tsentr "Academy", 2005.-192p. (in Russian).
Malyshev K.V. The polarization of the nanoparticles in the tunneling microscope // Science and education. .- 2011.- No.10. - P.1-13(in Russian). http://technomag.edu.ru/pdf/out/228079.pdf
Shirokov V.P., Biryukov S.V., Mukhortov V.M., Yuzyuk Y.I. The polarization of thin films of barium strontium titanate under the influence of an external electric field // Technical Physics.- 2011.-Vol.81. - Vyp.8.-P.115-121.
Zonghai Hu, Michael D. Fischbein, Claudia Querner, and Marija Drndic. Electric-Field-Drivtn Accumulation and Alignment of CdSe and CdTe Nanorods in Nanoscale Devices //Nano letters. - 2006. - Vol.6. - No.11. - P.2585-2591.
Kevin M. Ryan, Alex Mastroianni, Kmani A. Stancil, Haitao Liu, A.P. Alivisatos. Electric-Field-Assisted Assembly of Perpendiculary oriented Nanorod Superlattices // Nano letters. - 2006. - Vol.6. - No.7. - P.1479-1482.
Alimov YA.I, Chukichev M.V., Nikitenko V.A. The green luminescence band film of zinc oxide doped with copper in the process of thermal diffusion // Semiconductors. - 2004. - Vol.38. - Vyp.1. - P.34-38.
Troshin A.V., Kovalenko A.A., Dorofeev S.G., Baranov A.N. Sensitization Zno nanorods CdSe quantum dots // Inorganic materials. - 2012. - Vol.48. – No.7. - P.1-8. (in Russian).
Khomchenko V.S., Roshchina N.N., Zavyalov L.V., Strelchuk V.V., Svechnikov G.S., Tatyanenko N.P., Gromashevskiy V.L., Lytvyn O.S., Avramenko E.A., Snopok B.A. Investigation of the structure, and the emission properties of piezoelectric films ZnS, ZnS-ZnO and ZnO, obtained by chemical method // Technical Physics. - 2014. - Vol.84. - Vyp.1. - P.94-103.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
