Handle URI:
http://hdl.handle.net/10754/597492
Title:
All-Quantum-Dot Infrared Light-Emitting Diodes
Authors:
Yang, Zhenyu; Voznyy, Oleksandr; Liu, Mengxia; Yuan, Mingjian; Ip, Alexander H.; Ahmed, Osman S.; Levina, Larissa; Kinge, Sachin; Hoogland, Sjoerd; Sargent, Edward H.
Abstract:
© 2015 American Chemical Society. Colloidal quantum dots (CQDs) are promising candidates for infrared electroluminescent devices. To date, CQD-based light-emitting diodes (LEDs) have employed a CQD emission layer sandwiched between carrier transport layers built using organic materials and inorganic oxides. Herein, we report the infrared LEDs that use quantum-tuned materials for each of the hole-transporting, the electron-transporting, and the light-emitting layers. We successfully tailor the bandgap and band position of each CQD-based component to produce electroluminescent devices that exhibit emission that we tune from 1220 to 1622 nm. Devices emitting at 1350 nm achieve peak external quantum efficiency up to 1.6% with a low turn-on voltage of 1.2 V, surpassing previously reported all-inorganic CQD LEDs.
Citation:
Yang Z, Voznyy O, Liu M, Yuan M, Ip AH, et al. (2015) All-Quantum-Dot Infrared Light-Emitting Diodes. ACS Nano 9: 12327–12333. Available: http://dx.doi.org/10.1021/acsnano.5b05617.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Nano
KAUST Grant Number:
KUS-11-009-21
Issue Date:
22-Dec-2015
DOI:
10.1021/acsnano.5b05617
PubMed ID:
26575976
Type:
Article
ISSN:
1936-0851; 1936-086X
Sponsors:
This publication is based in part on work supported by Award KUS-11-009-21, from 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 of Canada (NSERC). Computations were performed on the GPC 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; Ontario Research Fund - Research Excellence; and the University of Toronto. The authors thank Z. Ning, X. Lan, R. Wolowiec, D. Kopilovic, and E. Palmiano for their help and useful discussions.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYang, Zhenyuen
dc.contributor.authorVoznyy, Oleksandren
dc.contributor.authorLiu, Mengxiaen
dc.contributor.authorYuan, Mingjianen
dc.contributor.authorIp, Alexander H.en
dc.contributor.authorAhmed, Osman S.en
dc.contributor.authorLevina, Larissaen
dc.contributor.authorKinge, Sachinen
dc.contributor.authorHoogland, Sjoerden
dc.contributor.authorSargent, Edward H.en
dc.date.accessioned2016-02-25T12:40:47Zen
dc.date.available2016-02-25T12:40:47Zen
dc.date.issued2015-12-22en
dc.identifier.citationYang Z, Voznyy O, Liu M, Yuan M, Ip AH, et al. (2015) All-Quantum-Dot Infrared Light-Emitting Diodes. ACS Nano 9: 12327–12333. Available: http://dx.doi.org/10.1021/acsnano.5b05617.en
dc.identifier.issn1936-0851en
dc.identifier.issn1936-086Xen
dc.identifier.pmid26575976en
dc.identifier.doi10.1021/acsnano.5b05617en
dc.identifier.urihttp://hdl.handle.net/10754/597492en
dc.description.abstract© 2015 American Chemical Society. Colloidal quantum dots (CQDs) are promising candidates for infrared electroluminescent devices. To date, CQD-based light-emitting diodes (LEDs) have employed a CQD emission layer sandwiched between carrier transport layers built using organic materials and inorganic oxides. Herein, we report the infrared LEDs that use quantum-tuned materials for each of the hole-transporting, the electron-transporting, and the light-emitting layers. We successfully tailor the bandgap and band position of each CQD-based component to produce electroluminescent devices that exhibit emission that we tune from 1220 to 1622 nm. Devices emitting at 1350 nm achieve peak external quantum efficiency up to 1.6% with a low turn-on voltage of 1.2 V, surpassing previously reported all-inorganic CQD LEDs.en
dc.description.sponsorshipThis publication is based in part on work supported by Award KUS-11-009-21, from 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 of Canada (NSERC). Computations were performed on the GPC 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; Ontario Research Fund - Research Excellence; and the University of Toronto. The authors thank Z. Ning, X. Lan, R. Wolowiec, D. Kopilovic, and E. Palmiano for their help and useful discussions.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectcarrier transport layersen
dc.subjectcolloidal quantum dotsen
dc.subjectinfrared light emissionen
dc.subjectlight-emitting diodesen
dc.titleAll-Quantum-Dot Infrared Light-Emitting Diodesen
dc.typeArticleen
dc.identifier.journalACS Nanoen
dc.contributor.institutionUniversity of Toronto, Toronto, Canadaen
dc.contributor.institutionToyota Motor Europe, Zaventem, Belgiumen
kaust.grant.numberKUS-11-009-21en

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