The efficiency challenge of nitride light-emitting diodes for lighting

Handle URI:
http://hdl.handle.net/10754/599909
Title:
The efficiency challenge of nitride light-emitting diodes for lighting
Authors:
Weisbuch, Claude; Piccardo, Marco; Martinelli, Lucio; Iveland, Justin; Peretti, Jacques; Speck, James S.
Abstract:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. We discuss the challenges of light-emitting diodes in view of their application to solid-state lighting. The requirement is to at least displace the quite efficient fluorescent, sodium, and high intensity discharge lamps used today in the main energy consuming lighting sectors, industrial, commercial and outdoors, with more efficient and better light quality lamps. We show that both from the point of view of cost of ownership and carbon emissions reduction, the relevant metric is efficiency, more than the cost of lumens. Then, progress from present performance requires identification of the loss mechanisms in light emission from LEDs, and solutions competing with mainstream c-plane LEDS grown on sapphire need to be on par with these. Special attention is devoted to a discussion of the efficiency droop mechanisms, and of a recent direct measurement of Auger generated electrons which appear to be responsible for droop.
Citation:
Weisbuch C, Piccardo M, Martinelli L, Iveland J, Peretti J, et al. (2015) The efficiency challenge of nitride light-emitting diodes for lighting. physica status solidi (a) 212: 899–913. Available: http://dx.doi.org/10.1002/pssa.201431868.
Publisher:
Wiley-Blackwell
Journal:
physica status solidi (a)
Issue Date:
13-Mar-2015
DOI:
10.1002/pssa.201431868
Type:
Article
ISSN:
1862-6300
Sponsors:
The samples were kindly provided by N. Young from UC Santa Barbara, by H. T. Chen, K. M. Chen and S.-C. Huang from Walsin Lihwa (Taiwan) and by J. W. Choi from Seoul Viosys (Korea). This work has been supported by the Center for Energy Efficient Materials (CEEM), an Energy Frontier Research Center. CEEM is funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award No. DE-SC0001009. Additional support has been provided by the Solid State Lighting and Energy Electronics Center at UCSB and by the KACST-KAUST-UCSB Solid State Lighting Program.
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Full metadata record

DC FieldValue Language
dc.contributor.authorWeisbuch, Claudeen
dc.contributor.authorPiccardo, Marcoen
dc.contributor.authorMartinelli, Lucioen
dc.contributor.authorIveland, Justinen
dc.contributor.authorPeretti, Jacquesen
dc.contributor.authorSpeck, James S.en
dc.date.accessioned2016-02-28T06:32:13Zen
dc.date.available2016-02-28T06:32:13Zen
dc.date.issued2015-03-13en
dc.identifier.citationWeisbuch C, Piccardo M, Martinelli L, Iveland J, Peretti J, et al. (2015) The efficiency challenge of nitride light-emitting diodes for lighting. physica status solidi (a) 212: 899–913. Available: http://dx.doi.org/10.1002/pssa.201431868.en
dc.identifier.issn1862-6300en
dc.identifier.doi10.1002/pssa.201431868en
dc.identifier.urihttp://hdl.handle.net/10754/599909en
dc.description.abstract© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. We discuss the challenges of light-emitting diodes in view of their application to solid-state lighting. The requirement is to at least displace the quite efficient fluorescent, sodium, and high intensity discharge lamps used today in the main energy consuming lighting sectors, industrial, commercial and outdoors, with more efficient and better light quality lamps. We show that both from the point of view of cost of ownership and carbon emissions reduction, the relevant metric is efficiency, more than the cost of lumens. Then, progress from present performance requires identification of the loss mechanisms in light emission from LEDs, and solutions competing with mainstream c-plane LEDS grown on sapphire need to be on par with these. Special attention is devoted to a discussion of the efficiency droop mechanisms, and of a recent direct measurement of Auger generated electrons which appear to be responsible for droop.en
dc.description.sponsorshipThe samples were kindly provided by N. Young from UC Santa Barbara, by H. T. Chen, K. M. Chen and S.-C. Huang from Walsin Lihwa (Taiwan) and by J. W. Choi from Seoul Viosys (Korea). This work has been supported by the Center for Energy Efficient Materials (CEEM), an Energy Frontier Research Center. CEEM is funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award No. DE-SC0001009. Additional support has been provided by the Solid State Lighting and Energy Electronics Center at UCSB and by the KACST-KAUST-UCSB Solid State Lighting Program.en
dc.publisherWiley-Blackwellen
dc.subjectEfficiency droopen
dc.subjectEnergy efficiencyen
dc.subjectGaNen
dc.subjectLight-emitting diodesen
dc.subjectNitride semiconductorsen
dc.subjectSolid-state lightingen
dc.titleThe efficiency challenge of nitride light-emitting diodes for lightingen
dc.typeArticleen
dc.identifier.journalphysica status solidi (a)en
dc.contributor.institutionLaboratoire de Physique de la Matière Condensée; CNRS-Ecole Polytechnique; 91128 Palaiseau Franceen
dc.contributor.institutionMaterials Department; University of California; Santa Barbara 93106 California USAen
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