The Effect of Hole Transport Material Pore Filling on Photovoltaic Performance in Solid-State Dye-Sensitized Solar Cells

Handle URI:
http://hdl.handle.net/10754/599901
Title:
The Effect of Hole Transport Material Pore Filling on Photovoltaic Performance in Solid-State Dye-Sensitized Solar Cells
Authors:
Melas-Kyriazi, John; Ding, I-Kang; Marchioro, Arianna; Punzi, Angela; Hardin, Brian E.; Burkhard, George F.; Tétreault, Nicolas; Grätzel, Michael; Moser, Jacques-E.; McGehee, Michael D.
Abstract:
A detailed investigation of the effect of hole transport material (HTM) pore filling on the photovoltaic performance of solid-state dye-sensitized solar cells (ss-DSCs) and the specific mechanisms involved is reported. It is demonstrated that the efficiency and photovoltaic characteristics of ss-DSCs improve with the pore filling fraction (PFF) of the HTM, 2,2',7,7'-tetrakis-(N, N-di-p-methoxyphenylamine)9,9'-spirobifluorene(spiro-OMeTAD). The mechanisms through which the improvement of photovoltaic characteristics takes place were studied with transient absorption spectroscopy and transient photovoltage/photocurrent measurements. It is shown that as the spiro-OMeTAD PFF is increased from 26% to 65%, there is a higher hole injection efficiency from dye cations to spiro-OMeTAD because more dye molecules are covered with spiro-OMeTAD, an order-of-magnitude slower recombination rate because holes can diffuse further away from the dye/HTM interface, and a 50% higher ambipolar diffusion coefficient due to an improved percolation network. Device simulations predict that if 100% PFF could be achieved for thicker devices, the efficiency of ss-DSCs using a conventional rutheniumdye would increase by 25% beyond its current value. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation:
Melas-Kyriazi J, Ding I-K, Marchioro A, Punzi A, Hardin BE, et al. (2011) The Effect of Hole Transport Material Pore Filling on Photovoltaic Performance in Solid-State Dye-Sensitized Solar Cells. Adv Energy Mater 1: 407–414. Available: http://dx.doi.org/10.1002/aenm.201100046.
Publisher:
Wiley-Blackwell
Journal:
Advanced Energy Materials
KAUST Grant Number:
KUS-C1 - 015-21
Issue Date:
5-Apr-2011
DOI:
10.1002/aenm.201100046
Type:
Article
ISSN:
1614-6832
Sponsors:
J. M.-K. and I.-K. D. contributed equally to this work. This publication was partially based on work supported by the Center for Advanced Molecular Photovoltaics (Award No KUS-C1 - 015-21) made by King Abdullah University of Science and Technology (KAUST). A. M., A. P., N. T., M. G., and J.-E. M. are grateful to the Swiss National Science Foundation for financial support. We thank Dr. Robin Humphry-Baker for his experimental assistance with transient photovoltage/photocurrent measurements, Dr. Shaik M. Zakeeruddin for providing Z907 dye, Manuel Tschumi for fabricating TiO<INF>2</INF> films, and George Y. Margulis for providing absorption data used in Section 2.6.
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Full metadata record

DC FieldValue Language
dc.contributor.authorMelas-Kyriazi, Johnen
dc.contributor.authorDing, I-Kangen
dc.contributor.authorMarchioro, Ariannaen
dc.contributor.authorPunzi, Angelaen
dc.contributor.authorHardin, Brian E.en
dc.contributor.authorBurkhard, George F.en
dc.contributor.authorTétreault, Nicolasen
dc.contributor.authorGrätzel, Michaelen
dc.contributor.authorMoser, Jacques-E.en
dc.contributor.authorMcGehee, Michael D.en
dc.date.accessioned2016-02-28T06:32:02Zen
dc.date.available2016-02-28T06:32:02Zen
dc.date.issued2011-04-05en
dc.identifier.citationMelas-Kyriazi J, Ding I-K, Marchioro A, Punzi A, Hardin BE, et al. (2011) The Effect of Hole Transport Material Pore Filling on Photovoltaic Performance in Solid-State Dye-Sensitized Solar Cells. Adv Energy Mater 1: 407–414. Available: http://dx.doi.org/10.1002/aenm.201100046.en
dc.identifier.issn1614-6832en
dc.identifier.doi10.1002/aenm.201100046en
dc.identifier.urihttp://hdl.handle.net/10754/599901en
dc.description.abstractA detailed investigation of the effect of hole transport material (HTM) pore filling on the photovoltaic performance of solid-state dye-sensitized solar cells (ss-DSCs) and the specific mechanisms involved is reported. It is demonstrated that the efficiency and photovoltaic characteristics of ss-DSCs improve with the pore filling fraction (PFF) of the HTM, 2,2',7,7'-tetrakis-(N, N-di-p-methoxyphenylamine)9,9'-spirobifluorene(spiro-OMeTAD). The mechanisms through which the improvement of photovoltaic characteristics takes place were studied with transient absorption spectroscopy and transient photovoltage/photocurrent measurements. It is shown that as the spiro-OMeTAD PFF is increased from 26% to 65%, there is a higher hole injection efficiency from dye cations to spiro-OMeTAD because more dye molecules are covered with spiro-OMeTAD, an order-of-magnitude slower recombination rate because holes can diffuse further away from the dye/HTM interface, and a 50% higher ambipolar diffusion coefficient due to an improved percolation network. Device simulations predict that if 100% PFF could be achieved for thicker devices, the efficiency of ss-DSCs using a conventional rutheniumdye would increase by 25% beyond its current value. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipJ. M.-K. and I.-K. D. contributed equally to this work. This publication was partially based on work supported by the Center for Advanced Molecular Photovoltaics (Award No KUS-C1 - 015-21) made by King Abdullah University of Science and Technology (KAUST). A. M., A. P., N. T., M. G., and J.-E. M. are grateful to the Swiss National Science Foundation for financial support. We thank Dr. Robin Humphry-Baker for his experimental assistance with transient photovoltage/photocurrent measurements, Dr. Shaik M. Zakeeruddin for providing Z907 dye, Manuel Tschumi for fabricating TiO<INF>2</INF> films, and George Y. Margulis for providing absorption data used in Section 2.6.en
dc.publisherWiley-Blackwellen
dc.titleThe Effect of Hole Transport Material Pore Filling on Photovoltaic Performance in Solid-State Dye-Sensitized Solar Cellsen
dc.typeArticleen
dc.identifier.journalAdvanced Energy Materialsen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
dc.contributor.institutionEcole Polytechnique Federale de Lausanne, Lausanne, Switzerlanden
kaust.grant.numberKUS-C1 - 015-21en
kaust.grant.fundedcenterCenter for Advanced Molecular Photovoltaics (CAMP)en
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