ZnO hierarchial structure prepared via direct precipitation for dye-sensitized solar cells

ZnO hierarchial structure prepared via direct precipitation for dye-sensitized solar cells A ZnO hierarchical structure was prepared via simple aqueous method at room temperature using zinc nitrate solution as precursor. Time-dependent trails demonstrated the formation of the hierarchical structure results from the Ostwald ripening effect. The ZnO hierarchical structure was further applied as photoanode in dye-sensitized solar cells (DSSCs), and a conversion efficiency of 2.36 % was demonstrated, which is higher than that of commercial ZnO-based DSSCs of 1.39 %. Based on the optical and electrochemical investigations, the high conversion efficiency was mainly ascribed to the unique structure of ZnO. The hierarchical structure can enhance the dye-loading capacity, and the hierarchical structure with micrometer-sized diameter could improve the scattering effect. Moreover, the good crystallinity can reduce the grain boundaries, suppress the recombination loss, and provide a fast electron transport, which therefore enhanced the conversion efficiency of cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

ZnO hierarchial structure prepared via direct precipitation for dye-sensitized solar cells

Loading next page...
 
/lp/springer_journal/zno-hierarchial-structure-prepared-via-direct-precipitation-for-dye-N59bmuVPWy
Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1472-x
Publisher site
See Article on Publisher Site

Abstract

A ZnO hierarchical structure was prepared via simple aqueous method at room temperature using zinc nitrate solution as precursor. Time-dependent trails demonstrated the formation of the hierarchical structure results from the Ostwald ripening effect. The ZnO hierarchical structure was further applied as photoanode in dye-sensitized solar cells (DSSCs), and a conversion efficiency of 2.36 % was demonstrated, which is higher than that of commercial ZnO-based DSSCs of 1.39 %. Based on the optical and electrochemical investigations, the high conversion efficiency was mainly ascribed to the unique structure of ZnO. The hierarchical structure can enhance the dye-loading capacity, and the hierarchical structure with micrometer-sized diameter could improve the scattering effect. Moreover, the good crystallinity can reduce the grain boundaries, suppress the recombination loss, and provide a fast electron transport, which therefore enhanced the conversion efficiency of cells.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Nov 13, 2013

References

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
discover and read the research
that matters to you.

Enjoy affordable access to
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.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off