Effect of solvent environment on colloidal-quantum-dot solar-cell manufacturability and performance

Handle URI:
http://hdl.handle.net/10754/563589
Title:
Effect of solvent environment on colloidal-quantum-dot solar-cell manufacturability and performance
Authors:
Kirmani, Ahmad R. ( 0000-0002-8351-3762 ) ; Carey, Graham H.; Abdelsamie, Maged ( 0000-0002-4631-5409 ) ; Yan, Buyi; Cha, Dong Kyu; Rollny, Lisa R.; Cui, Xiaoyu; Sargent, E. H.; Amassian, Aram ( 0000-0002-5734-1194 )
Abstract:
The absorbing layer in state-of-the-art colloidal quantum-dot solar cells is fabricated using a tedious layer-by-layer process repeated ten times. It is now shown that methanol, a common exchange solvent, is the main culprit, as extended exposure leaches off the surface halide passivant, creating carrier trap states. Use of a high-dipole-moment aprotic solvent eliminates this problem and is shown to produce state-of-the-art devices in far fewer steps. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; KAUST Solar Center (KSC); Materials Science and Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Core Labs; Organic Electronics and Photovoltaics Group
Publisher:
Wiley-Blackwell
Journal:
Advanced Materials
Issue Date:
4-Jun-2014
DOI:
10.1002/adma.201400577
Type:
Article
ISSN:
09359648
Sponsors:
The authors acknowledge the help of Dr. Omar El Tall of the Analytical Core Laboratory, KAUST for his assistance with the FT-IR measurements, Dr. Issam Gereige of the Solar and Photovoltaic Engineering Research Center, KAUST for his assistance with IR-VASE measurements, as well as Dr. Ruipeng Li and Dr. Detlef-M. Smilgies for their assistance with GISAXS measurements at CHESS. 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. The authors thank Angstrom Engineering and Innovative Technology for useful discussions regarding material deposition methods and control of the glovebox environment, respectively. UPS measurements described in this paper were performed at the Canadian Light Source, which is funded by the Canada Foundation for Innovation, the Natural Sciences and Engineering Research Council of Canada, the National Research Council Canada, the Canadian Institutes of Health Research, the Government of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan. The authors acknowledge the use of the D1 beam line at the Cornell High Energy Synchrotron Source supported by the National Science Foundation (NSF DMR-0225180) and NIH-NIGMS.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Materials Science and Engineering Program; KAUST Solar Center (KSC); Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKirmani, Ahmad R.en
dc.contributor.authorCarey, Graham H.en
dc.contributor.authorAbdelsamie, Mageden
dc.contributor.authorYan, Buyien
dc.contributor.authorCha, Dong Kyuen
dc.contributor.authorRollny, Lisa R.en
dc.contributor.authorCui, Xiaoyuen
dc.contributor.authorSargent, E. H.en
dc.contributor.authorAmassian, Aramen
dc.date.accessioned2015-08-03T11:55:09Zen
dc.date.available2015-08-03T11:55:09Zen
dc.date.issued2014-06-04en
dc.identifier.issn09359648en
dc.identifier.doi10.1002/adma.201400577en
dc.identifier.urihttp://hdl.handle.net/10754/563589en
dc.description.abstractThe absorbing layer in state-of-the-art colloidal quantum-dot solar cells is fabricated using a tedious layer-by-layer process repeated ten times. It is now shown that methanol, a common exchange solvent, is the main culprit, as extended exposure leaches off the surface halide passivant, creating carrier trap states. Use of a high-dipole-moment aprotic solvent eliminates this problem and is shown to produce state-of-the-art devices in far fewer steps. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThe authors acknowledge the help of Dr. Omar El Tall of the Analytical Core Laboratory, KAUST for his assistance with the FT-IR measurements, Dr. Issam Gereige of the Solar and Photovoltaic Engineering Research Center, KAUST for his assistance with IR-VASE measurements, as well as Dr. Ruipeng Li and Dr. Detlef-M. Smilgies for their assistance with GISAXS measurements at CHESS. 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. The authors thank Angstrom Engineering and Innovative Technology for useful discussions regarding material deposition methods and control of the glovebox environment, respectively. UPS measurements described in this paper were performed at the Canadian Light Source, which is funded by the Canada Foundation for Innovation, the Natural Sciences and Engineering Research Council of Canada, the National Research Council Canada, the Canadian Institutes of Health Research, the Government of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan. The authors acknowledge the use of the D1 beam line at the Cornell High Energy Synchrotron Source supported by the National Science Foundation (NSF DMR-0225180) and NIH-NIGMS.en
dc.publisherWiley-Blackwellen
dc.subjectcolloidal quantum dotsen
dc.subjectligand exchangeen
dc.subjectroll-to-roll processingen
dc.subjectthin filmsen
dc.titleEffect of solvent environment on colloidal-quantum-dot solar-cell manufacturability and performanceen
dc.typeArticleen
dc.contributor.departmentImaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentOrganic Electronics and Photovoltaics Groupen
dc.identifier.journalAdvanced Materialsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 3G4, Canadaen
dc.contributor.institutionCanadian Light Source, Saskatoon, SK S7N 2V3, Canadaen
kaust.authorCha, Dong Kyuen
kaust.authorAmassian, Aramen
kaust.authorKirmani, Ahmad R.en
kaust.authorAbdelsamie, Mageden
kaust.authorYan, Buyien
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