Phosphonate self-assembled monolayers as organic linkers in solid-state quantum dot sensetized solar cells

Handle URI:
http://hdl.handle.net/10754/599181
Title:
Phosphonate self-assembled monolayers as organic linkers in solid-state quantum dot sensetized solar cells
Authors:
Ardalan, Pendar; Brennan, Thomas P.; Bakke, Jonathan R.; Bent, Stacey F.
Abstract:
We have employed X-ray photoelectron spectroscopy (XPS), ultraviolet-visible (UV-vis) spectroscopy, infrared (IR) spectroscopy, water contact angle (WCA) measurements, ellipsometry, and electrical measurements to study the effects of self-assembled monolayers (SAMs) with phosphonic acid headgroups on the bonding and performance of cadmium sulfide (CdS) solid-state quantum dot sensitized solar cells (QDSSCs). ∼2 to ∼6 nm size CdS quantum dots (QDs) were grown on the SAM-passivated TiO2 surfaces by successive ionic layer adsorption and reaction (SILAR). Our results show differences in the bonding of the CdS QDs at the TiO2 surfaces with a SAM linker. Moreover, our data indicate that presence of a SAM increases the CdS uptake on TiO2 as well as the performance of the resulting devices. Importantly, we observe ∼2 times higher power conversion efficiencies in the devices with a SAM compared to those that lack a SAM. © 2010 IEEE.
Citation:
Ardalan P, Brennan TP, Bakke JR, Bent SF (2010) Phosphonate self-assembled monolayers as organic linkers in solid-state quantum dot sensetized solar cells. 2010 35th IEEE Photovoltaic Specialists Conference. Available: http://dx.doi.org/10.1109/PVSC.2010.5614620.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2010 35th IEEE Photovoltaic Specialists Conference
KAUST Grant Number:
KUS-C1-015-21
Issue Date:
Jun-2010
DOI:
10.1109/PVSC.2010.5614620
Type:
Conference Paper
Sponsors:
The authors would like to acknowledge I-KangDing for help with the device fabrication and the solarsimulator measurements. We also thank the StanfordNanocharacterization Laboratory (SNL) staff and the staffof the Center for Polymer Interfaces and MacromolecularAssemblies (CPIMA) for their support. This publicationwas based on work supported by the Center for AdvancedMolecular Photovoltaics (Award No. KUS-C1-015-21),made by King Abdullah University of Science andTechnology (KAUST).
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorArdalan, Pendaren
dc.contributor.authorBrennan, Thomas P.en
dc.contributor.authorBakke, Jonathan R.en
dc.contributor.authorBent, Stacey F.en
dc.date.accessioned2016-02-25T13:54:25Zen
dc.date.available2016-02-25T13:54:25Zen
dc.date.issued2010-06en
dc.identifier.citationArdalan P, Brennan TP, Bakke JR, Bent SF (2010) Phosphonate self-assembled monolayers as organic linkers in solid-state quantum dot sensetized solar cells. 2010 35th IEEE Photovoltaic Specialists Conference. Available: http://dx.doi.org/10.1109/PVSC.2010.5614620.en
dc.identifier.doi10.1109/PVSC.2010.5614620en
dc.identifier.urihttp://hdl.handle.net/10754/599181en
dc.description.abstractWe have employed X-ray photoelectron spectroscopy (XPS), ultraviolet-visible (UV-vis) spectroscopy, infrared (IR) spectroscopy, water contact angle (WCA) measurements, ellipsometry, and electrical measurements to study the effects of self-assembled monolayers (SAMs) with phosphonic acid headgroups on the bonding and performance of cadmium sulfide (CdS) solid-state quantum dot sensitized solar cells (QDSSCs). ∼2 to ∼6 nm size CdS quantum dots (QDs) were grown on the SAM-passivated TiO2 surfaces by successive ionic layer adsorption and reaction (SILAR). Our results show differences in the bonding of the CdS QDs at the TiO2 surfaces with a SAM linker. Moreover, our data indicate that presence of a SAM increases the CdS uptake on TiO2 as well as the performance of the resulting devices. Importantly, we observe ∼2 times higher power conversion efficiencies in the devices with a SAM compared to those that lack a SAM. © 2010 IEEE.en
dc.description.sponsorshipThe authors would like to acknowledge I-KangDing for help with the device fabrication and the solarsimulator measurements. We also thank the StanfordNanocharacterization Laboratory (SNL) staff and the staffof the Center for Polymer Interfaces and MacromolecularAssemblies (CPIMA) for their support. This publicationwas based on work supported by the Center for AdvancedMolecular Photovoltaics (Award No. KUS-C1-015-21),made by King Abdullah University of Science andTechnology (KAUST).en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titlePhosphonate self-assembled monolayers as organic linkers in solid-state quantum dot sensetized solar cellsen
dc.typeConference Paperen
dc.identifier.journal2010 35th IEEE Photovoltaic Specialists Conferenceen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
kaust.grant.numberKUS-C1-015-21en
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