Enhanced Open-Circuit Voltage in Visible Quantum Dot Photovoltaics by Engineering of Carrier-Collecting Electrodes

Handle URI:
http://hdl.handle.net/10754/598184
Title:
Enhanced Open-Circuit Voltage in Visible Quantum Dot Photovoltaics by Engineering of Carrier-Collecting Electrodes
Authors:
Wang, Xihua; Koleilat, Ghada I.; Fischer, Armin; Tang, Jiang; Debnath, Ratan; Levina, Larissa; Sargent, Edward H.
Abstract:
Colloidal quantum dots (CQDs) enable multijunction solar cells using a single material programmed using the quantum size effect. Here we report the systematic engineering of 1.6 eV PbS CQD solar cells, optimal as the front cell responsible for visible-wavelength harvesting in tandem photovoltaics. We rationally optimize each of the device's collecting electrodes-the heterointerface with electron-accepting TiO2 and the deep-work-function hole-collecting MoO3 for ohmic contact-for maximum efficiency. We report an open-circuit voltage of 0.70 V, the highest observed in a colloidal quantum dot solar cell operating at room temperature. We report an AM1.5 solar power conversion efficiency of 3.5%, the highest observed in >1.5 eV bandgap CQD PV device. © 2011 American Chemical Society.
Citation:
Wang X, Koleilat GI, Fischer A, Tang J, Debnath R, et al. (2011) Enhanced Open-Circuit Voltage in Visible Quantum Dot Photovoltaics by Engineering of Carrier-Collecting Electrodes. ACS Applied Materials & Interfaces 3: 3792–3795. Available: http://dx.doi.org/10.1021/am201097p.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
KAUST Grant Number:
KUS-11-009-21
Issue Date:
26-Oct-2011
DOI:
10.1021/am201097p
PubMed ID:
21936534
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
This publication is based in part on work supported by Award KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. We thank Angstrom Engineering and Innovative Technology for useful discussions regarding material deposition methods and control of glovebox environment, respectively.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Xihuaen
dc.contributor.authorKoleilat, Ghada I.en
dc.contributor.authorFischer, Arminen
dc.contributor.authorTang, Jiangen
dc.contributor.authorDebnath, Ratanen
dc.contributor.authorLevina, Larissaen
dc.contributor.authorSargent, Edward H.en
dc.date.accessioned2016-02-25T13:14:17Zen
dc.date.available2016-02-25T13:14:17Zen
dc.date.issued2011-10-26en
dc.identifier.citationWang X, Koleilat GI, Fischer A, Tang J, Debnath R, et al. (2011) Enhanced Open-Circuit Voltage in Visible Quantum Dot Photovoltaics by Engineering of Carrier-Collecting Electrodes. ACS Applied Materials & Interfaces 3: 3792–3795. Available: http://dx.doi.org/10.1021/am201097p.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.pmid21936534en
dc.identifier.doi10.1021/am201097pen
dc.identifier.urihttp://hdl.handle.net/10754/598184en
dc.description.abstractColloidal quantum dots (CQDs) enable multijunction solar cells using a single material programmed using the quantum size effect. Here we report the systematic engineering of 1.6 eV PbS CQD solar cells, optimal as the front cell responsible for visible-wavelength harvesting in tandem photovoltaics. We rationally optimize each of the device's collecting electrodes-the heterointerface with electron-accepting TiO2 and the deep-work-function hole-collecting MoO3 for ohmic contact-for maximum efficiency. We report an open-circuit voltage of 0.70 V, the highest observed in a colloidal quantum dot solar cell operating at room temperature. We report an AM1.5 solar power conversion efficiency of 3.5%, the highest observed in >1.5 eV bandgap CQD PV device. © 2011 American Chemical Society.en
dc.description.sponsorshipThis publication is based in part on work supported by Award KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. We thank Angstrom Engineering and Innovative Technology for useful discussions regarding material deposition methods and control of glovebox environment, respectively.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleEnhanced Open-Circuit Voltage in Visible Quantum Dot Photovoltaics by Engineering of Carrier-Collecting Electrodesen
dc.typeArticleen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionUniversity of Toronto, Toronto, Canadaen
kaust.grant.numberKUS-11-009-21en

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