Optical Characterization of ZnO Nanorods Grown by the Ultra-Fast and Low Temperature Hydrothermal Process

• Authors: B. Witkowski , V. Ivanov , Ł. Wachnicki , S. Gierałtowska , M. Godlewski
• Languages of publication: EN

Abstracts

EN

The results of photoluminescence investigations of zinc oxide nanorods are reported. These nanorods grown on undoped silicon substrates were obtained by low temperature and ultra-fast version of a microwave-assisted hydrothermal method. The photoluminescence investigations show very high quality of the obtained material. From photoluminescence studies we conclude the lack of carrier localization effects. The photoluminescence is dominated by band gap edge emission of bound excitonic (donor bound excitons) origin. Thus, the photoluminescence quenching observed at increased temperatures is associated with thermal ionization of shallow donors. From photoluminescence analysis (changes of photoluminescence line width) a strength of exciton-acoustic phonon coupling is evaluated.

Keywords

EN

78.67.-n; 61.46.+w; 81.10.Dn; 77.84.Bw

Discipline

• 77.84.Bw: Elements, oxides, nitrides, borides, carbides, chalcogenides, etc.
• 81.10.Dn: Growth from solutions
• 78.67.-n: Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures(for magnetic properties of nanostructures, see 75.75.-c; for electronic transport in nanoscale structures, see 73.63.-b; for mechanical properties of nanoscale systems, see 62.25.-g)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 5
• Pages: 1199-1201

Dates

published

2016-11

Contributors

author

B. Witkowski

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

V. Ivanov

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

Ł. Wachnicki

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

S. Gierałtowska

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

M. Godlewski

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland
• Dept. of Mathematics and Natural Sciences College of Science, Cardinal S. Wyszynski University, Dewajtis 5, 01-815 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.130.1199