Ultraviolet photoluminescence of ZnO quantum dots sputtered at room-temperature | Zendy

Gillian Kiliani | Zendy; Reinhard Schneider | Zendy; D. Litvinov | Zendy; Dagmar Gerthsen | Zendy; M. Fonin | Zendy; U. Rüdiger | Zendy; Alfred Leitenstorfer | Zendy; Rudolf Bratschitsch | Zendy

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Ultraviolet photoluminescence of ZnO quantum dots sputtered at room-temperature

Author(s) -

Gillian Kiliani,

Reinhard Schneider,

D. Litvinov,

Dagmar Gerthsen,

M. Fonin,

U. Rüdiger,

Alfred Leitenstorfer,

Rudolf Bratschitsch

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.001641

Subject(s) - photoluminescence , ultraviolet , materials science , transmittance , quantum dot , optoelectronics , amorphous solid , annealing (glass) , sputtering , nanocrystal , optics , sputter deposition , thin film , nanotechnology , chemistry , physics , composite material , organic chemistry

We observe ultraviolet photoluminescence from sputtered ZnO quantum dots which are fabricated with no annealing steps. The nanocrystals are embedded in amorphous SiO2 and exhibit a narrow size distribution of 3.5 ± 0.6 nm. Photoluminescence and transmittance measurements show a shift of ultraviolet emission and absorption of the dots compared to bulk ZnO material. This work paves the way for cheap nanooptical devices in the ultraviolet which are fabricated in a single sputtering run.

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