The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance

Handle URI:
http://hdl.handle.net/10754/563087
Title:
The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance
Authors:
Katsiev, Khabiboulakh; Ip, Alex; Fischer, Armin H.; Tanabe, Iori; Zhang, Xin; Kirmani, Ahmad R.; Voznyy, Oleksandr; Rollny, Lisa R.; Chou, Kang Wei; Thon, Susanna; Carey, Graham H.; Cui, Xiaoyu; Amassian, Aram ( 0000-0002-5734-1194 ) ; Dowben, Peter A.; Sargent, E. H.; Bakr, Osman M. ( 0000-0002-3428-1002 )
Abstract:
The direct observation of the complete electronic band structure of a family of PbS CQD solids via photoelectron spectroscopy is reported. We investigate how materials processing strategies, such as the latest passivation methods that produce record-performance photovoltaics, achieve their performance advances. Halide passivated films show a drastic reduction in states in the midgap, contributing to a marked improvement in the device performance. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC); Materials Science and Engineering Program; Organic Electronics and Photovoltaics Group; Functional Nanomaterials Lab (FuNL)
Publisher:
Wiley-VCH Verlag
Journal:
Advanced Materials
Issue Date:
15-Nov-2013
DOI:
10.1002/adma.201304166; 10.1002/adma.201470034
Type:
Article
ISSN:
09359648
Sponsors:
This publication is based in part on work supported by Award KUS-11009- 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 acknowledge the help of Dr. C. Y. Kim, K. W. Kemp, and D. Kopilovic. Computations were performed on the TCS supercomputer at the SciNet HPC Consortium. SciNet is funded by the Canada Foundation for Innovation under the auspices of Compute Canada, the Government of Ontario, the Ontario Research Fund -Research Excellence, and the University of Toronto. [39] Research described in this paper was 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.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorKatsiev, Khabiboulakhen
dc.contributor.authorIp, Alexen
dc.contributor.authorFischer, Armin H.en
dc.contributor.authorTanabe, Iorien
dc.contributor.authorZhang, Xinen
dc.contributor.authorKirmani, Ahmad R.en
dc.contributor.authorVoznyy, Oleksandren
dc.contributor.authorRollny, Lisa R.en
dc.contributor.authorChou, Kang Weien
dc.contributor.authorThon, Susannaen
dc.contributor.authorCarey, Graham H.en
dc.contributor.authorCui, Xiaoyuen
dc.contributor.authorAmassian, Aramen
dc.contributor.authorDowben, Peter A.en
dc.contributor.authorSargent, E. H.en
dc.contributor.authorBakr, Osman M.en
dc.date.accessioned2015-08-03T11:35:29Zen
dc.date.available2015-08-03T11:35:29Zen
dc.date.issued2013-11-15en
dc.identifier.issn09359648en
dc.identifier.doi10.1002/adma.201304166en
dc.identifier.doi10.1002/adma.201470034en
dc.identifier.urihttp://hdl.handle.net/10754/563087en
dc.description.abstractThe direct observation of the complete electronic band structure of a family of PbS CQD solids via photoelectron spectroscopy is reported. We investigate how materials processing strategies, such as the latest passivation methods that produce record-performance photovoltaics, achieve their performance advances. Halide passivated films show a drastic reduction in states in the midgap, contributing to a marked improvement in the device performance. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThis publication is based in part on work supported by Award KUS-11009- 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 acknowledge the help of Dr. C. Y. Kim, K. W. Kemp, and D. Kopilovic. Computations were performed on the TCS supercomputer at the SciNet HPC Consortium. SciNet is funded by the Canada Foundation for Innovation under the auspices of Compute Canada, the Government of Ontario, the Ontario Research Fund -Research Excellence, and the University of Toronto. [39] Research described in this paper was 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.en
dc.publisherWiley-VCH Verlagen
dc.subjectelectronic structureen
dc.subjectphotoelectron spectroscopyen
dc.subjectphotovoltaicsen
dc.subjectquantum dotsen
dc.subjecttrap statesen
dc.titleThe complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performanceen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentOrganic Electronics and Photovoltaics Groupen
dc.contributor.departmentFunctional Nanomaterials Lab (FuNL)en
dc.identifier.journalAdvanced Materialsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 3G4, Canadaen
dc.contributor.institutionDepartment of Physics and Astronomy, Jorgensen Hall, University of Nebraska-Lincoln, 855 North 16th Street, Lincoln, NE 68588-0299, United Statesen
dc.contributor.institutionCanadian Light Source, Saskatoon, SK S7N 2V3, Canadaen
kaust.authorKatsiev, Khabiboulakhen
kaust.authorChou, Kang Weien
kaust.authorAmassian, Aramen
kaust.authorBakr, Osman M.en
kaust.authorKirmani, Ahmad R.en
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