# Effect of reaction temperature and reaction time on the sizes and defects of Sn doped ZnO quantum dots synthesized under ultrasonic irradiation

Effect of reaction temperature and reaction time on the sizes and defects of Sn doped ZnO quantum... Sn doped Zn0.95Sn0.05O quantum dots were synthesized via an ultrasonic method under different reaction time and reaction temperature. Optical defects of these Zn0.95Sn0.05O quantum dots were controlled by tuning the valence states of the dopants (Sn2+ or Sn4+). For Sn2+ doped Zn0.95Sn0.05O quantum dots, main optical defects were $${V}_{{O}}^{ \cdot }$$ V O · defects. While for Sn4+ doped Zn0.95Sn0.05O quantum dots, main optical defects were $${{O}_{Zn}}$$ O Z n and $${{O}_i}$$ O i defects. UV–Vis spectra were employed to investigate the energy gap of these quantum dots. Photoluminescence properties were measured to discuss the optical defect types and concentrations in these quantum dots. It was found that the reaction condition played an important role in controlling the particle sizes and optical defects of Zn0.95Sn0.05O quantum dots. Moreover, with reaction temperature or reaction time increasing, for both Sn2+ and Sn4+ doped Zn0.95Sn0.05O quantum dots, changing trends of their particle sizes were almost same. While changing trends of their optical defect types and concentrations were different. The results indicate that, oxygen in Sn doped Zn0.95Sn0.05O quantum dots died out much more completely under the ultrasonic reaction with higher reaction temperature and longer reaction time. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

# Effect of reaction temperature and reaction time on the sizes and defects of Sn doped ZnO quantum dots synthesized under ultrasonic irradiation

, Volume 28 (17) – May 15, 2017
13 pages

/lp/springer_journal/effect-of-reaction-temperature-and-reaction-time-on-the-sizes-and-JcEBdxVocO
Publisher
Springer US
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-7108-y
Publisher site
See Article on Publisher Site

### Abstract

Sn doped Zn0.95Sn0.05O quantum dots were synthesized via an ultrasonic method under different reaction time and reaction temperature. Optical defects of these Zn0.95Sn0.05O quantum dots were controlled by tuning the valence states of the dopants (Sn2+ or Sn4+). For Sn2+ doped Zn0.95Sn0.05O quantum dots, main optical defects were $${V}_{{O}}^{ \cdot }$$ V O · defects. While for Sn4+ doped Zn0.95Sn0.05O quantum dots, main optical defects were $${{O}_{Zn}}$$ O Z n and $${{O}_i}$$ O i defects. UV–Vis spectra were employed to investigate the energy gap of these quantum dots. Photoluminescence properties were measured to discuss the optical defect types and concentrations in these quantum dots. It was found that the reaction condition played an important role in controlling the particle sizes and optical defects of Zn0.95Sn0.05O quantum dots. Moreover, with reaction temperature or reaction time increasing, for both Sn2+ and Sn4+ doped Zn0.95Sn0.05O quantum dots, changing trends of their particle sizes were almost same. While changing trends of their optical defect types and concentrations were different. The results indicate that, oxygen in Sn doped Zn0.95Sn0.05O quantum dots died out much more completely under the ultrasonic reaction with higher reaction temperature and longer reaction time.

### Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: May 15, 2017

## You’re reading a free preview. Subscribe to read the entire article.

### DeepDyve is your personal research library

It’s your single place to instantly
that matters to you.

over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month ### Explore the DeepDyve Library ### Search Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly ### Organize Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place. ### Access Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals. ### Your journals are on DeepDyve Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more. All the latest content is available, no embargo periods. DeepDyve ### Freelancer DeepDyve ### Pro Price FREE$49/month
\$360/year

Save searches from
PubMed

Create lists to

Export lists, citations