Electrochemical Characterization of TiO2 Blocking Layers for Dye-Sensitized Solar Cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00430103" target="_blank" >RIV/61388955:_____/14:00430103 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/jp4103614" target="_blank" >http://dx.doi.org/10.1021/jp4103614</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp4103614" target="_blank" >10.1021/jp4103614</a>

Result language

angličtina

Original language name

Electrochemical Characterization of TiO2 Blocking Layers for Dye-Sensitized Solar Cells

Original language description

Thin compact layers of TiO2 are grown by thermal oxidation of Ti, by spray pyrolysis, by electrochemical deposition, and by atomic layer deposition. These layers are used in dye-sensitized solar cells to prevent recombination of electrons from the substrate (FTO or Ti) with the hole-conducting medium at this interface. The quality of blocking is evaluated electrochemically by methylviologen, ferro/ferricyanide, and spiro-OMeTAD as the model redox probes. Two types of pinholes in the blocking layers areclassified, and their effective area is quantified. Frequency-independent Mott?Schottky plots are fitted from electrochemical impedance spectroscopy. Certain films of the thicknesses of several nanometers allow distinguishing the depletion layer formation both in the TiO2 film and in the FTO substrate underneath the titania film. The excellent blocking function of thermally oxidized Ti, electrodeposited film (60 nm), and atomic-layer-deposited films (>6 nm) is documented by the relative

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

<a href="/en/project/GA13-07724S" target="_blank" >GA13-07724S: Materials engineering towards Innovative Graetzel solar cells</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

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Volume of the periodical

118

Issue of the periodical within the volume

30

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

16408-16718

UT code for WoS article

000339930900014

EID of the result in the Scopus database

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