Photovoltaic performance of nanostructured zinc oxide sensitised with xanthene dyes

Guillén, Elena; Casanueva, F.; Anta, Juan A.; Vega-Poot, Alberto; Oskam, Gerko; Alcántara, Rodrigo; Fernández‐Lorenzo, Concha; Martín‐Calleja, Joaquin

doi:10.1016/j.jphotochem.2008.08.015

Cited by 82 publications

(56 citation statements)

References 28 publications

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“…In general, xanthene dyes such as Rose or EY have a better performance when used to sensitize ZnO rather than TiO 2 cells. 43 From I-V measurements, it has been found that EY dye is the most photosensitive dye for TZO and ZnO-based solar cells. Rose dye is the next most photosensitive dye that provides good photocurrent value.…”

Section: Resultsmentioning

confidence: 99%

A Comparative Study of Nanostructured TiO2, ZnO and Bilayer TiO2/ZnO Dye-Sensitized Solar Cells

Rani

Tripathi

2015

Journal of Elec Materi

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Titanium dioxide (TiO 2 ), Zinc oxide (ZnO) and bilayer TiO 2 /ZnO (TZO) based cells have been developed and sensitized with five organic dyes and one cocktail dye composed of five dyes. Photovoltaic performance of TiO 2 and ZnO solar cell sensitized with six dyes is compared to that of bilayer TZO cells. The forward current is found to increase with applied voltage in the range V £ 0.4 V, which is dominated by thermionic emission, whereas in 0.4 £ V £ 0.7 V, the current transport is due to space charge-limited current controlled by exponential trap distribution in all devices. The combined properties of the materials enhance the efficiency of composite TZO cells. TiO 2 permits the formation of an energy barrier at the ZnO electrode/electrolyte interface, which reduces the back electron transfer from the conduction band of ZnO to I 3 À in the electrolyte. Also, due to the TiO 2 layer on the ZnO, the latter forms a compact layer between flourine-doped tin oxide (FTO)/TiO 2 which benefits the fast electron transfer from TiO 2 to ZnO to FTO glass. This reduces the charge recombination occurring at the ZnO/FTO interface leading to higher open circuit voltage (V oc ), higher short circuit current (J sc ), lower series resistance (R s ), and in turn higher efficiency in TZO solar cells as compared to ZnO cells. Among the six dyes, Eosin-Y and Rose Bengal dye gave the best performance as sensitizers with TZO.

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Section: Resultsmentioning

confidence: 99%

A Comparative Study of Nanostructured TiO2, ZnO and Bilayer TiO2/ZnO Dye-Sensitized Solar Cells

Rani

Tripathi

2015

Journal of Elec Materi

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“…), yield efficiencies comparable to those achieved with ruthenium complexes, especially when used to sensitize ZnO films (Guillén et al, 2008;Plank et al, 2009;Pradhan et al, 2007). Organic dyes such as these are inexpensive (Kroon et al, 2007), can be easily recycled (Lee et al, 2006) and do not rely on the availability of precious metals such as ruthenium.…”

Section: Dye-sensitized Solar Cells (Dsscs)mentioning

confidence: 98%

Potential Applications for Solar Photocatalysis: From Environmental Remediation to Energy Conversion

Machado¹,

Santos²,

Borges³

et al. 2012

Solar Radiation

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“…For their outstanding photophysical properties, xanthene dyes are very efficient laser dyes 10 and as pH sensitive fluorescent materials for bioimaging 11 . Since xanthene dyes have a sensitizing effect, their applications for dye sensitized solar cells (DSSC) have been reported [12][13][14][15] and as hole-transporting materials in organic light-emitting devices (OLEDs) 16 . Due to the applicability of the xanthenes and benzoxanthenes, several synthetic protocols have been reported, including the reaction of alkylphenoxymagnesium halides with triethyl orthoformate 17 , the palladiumcatalysed cyclization of polycyclic aryltriflate esters 18 , the cyclocondensation reaction between 2-tetralone and 2-hydroxyarylaldehydes under acidic conditions 19 , and the reaction of the condensation of cyclic 1,3-diketones with aryl aldehydes catalysed by molybdate sulphonic acid 20 .…”

Section: Introductionmentioning

confidence: 99%

Solvent Free, One Pot Synthesis of Symmetric Xanthene Dyes and Their Electrochemical Study

Shabir

Saeed

2016

J. Chil. Chem. Soc.

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The present paper reports the synthesis of xanthene dyes derivatives from 4, 4'-oxydiphthalic anhydride and 1, 4, 5, 8-naphthalenetetracarboxylic dianhydride (3a-e and 6a-e) with different substituted phenols via Friedel-Crafts acylation reaction in the presence of an ammonium chloride catalyst. The structures of all newly synthesized derivatives were confirmed by the chromatographic, spectral and microelemental data. Dianhydride derivatives with 3-N', N'-dimethylaminophenol (3d and 6d) and resorcinol (3e and 6e) have been found to be highly fluorescent. Electrochemical study was done to determine band gap energy, LUMO and HOMO level energy. Band gap and LUMO energy levels were found to be lowest in xanthene derivatives 3c and 6c. Dyes 3d, 3e, 6d and 6e were found useful for differential staining of plant cells.

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Photovoltaic performance of nanostructured zinc oxide sensitised with xanthene dyes

Cited by 82 publications

References 28 publications

A Comparative Study of Nanostructured TiO2, ZnO and Bilayer TiO2/ZnO Dye-Sensitized Solar Cells

A Comparative Study of Nanostructured TiO2, ZnO and Bilayer TiO2/ZnO Dye-Sensitized Solar Cells

Potential Applications for Solar Photocatalysis: From Environmental Remediation to Energy Conversion

Solvent Free, One Pot Synthesis of Symmetric Xanthene Dyes and Their Electrochemical Study

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