NWS4LIGHT

Nanowires for solid state lighting

Coordinatore	LUNDS UNIVERSITET    more  Organization address address: Paradisgatan 5c city: LUND postcode: 22100 contact info Titolo: Ms. Nome: Monica Cognome: Pålsson Email: send email Telefono: +46 46 222 7678 Fax: +46 46 222 3637
Nazionalità Coordinatore	Sweden [SE]
Sito del progetto	http://www.ftf.lth.se/research/links_to_some_projects/nws4light/
Totale costo	5˙346˙577 €
EC contributo	3˙160˙400 €
Programma	FP7-NMP Specific Programme "Cooperation": Nanosciences, Nanotechnologies, Materials and new Production Technologies
Code Call	FP7-NMP-2011-SMALL-5
Funding Scheme	CP-FP
Anno di inizio	2012
Periodo (anno-mese-giorno)	2012-06-01   -   2015-05-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	LUNDS UNIVERSITET  Organization address address: Paradisgatan 5c city: LUND postcode: 22100 contact info Titolo: Ms. Nome: Monica Cognome: Pålsson Email: send email Telefono: +46 46 222 7678 Fax: +46 46 222 3637	SE (LUND)	coordinator	1˙163˙020.00
2	GLO AB  Organization address address: SCHEELEVAGEN 17 city: Lund postcode: 22370 contact info Titolo: Ms. Nome: Marie Cognome: Svensson Email: send email Telefono: 46462864864	SE (Lund)	participant	805˙000.00
3	DANMARKS TEKNISKE UNIVERSITET  Organization address address: Anker Engelundsvej 1, Building 101A city: KONGENS LYNGBY postcode: 2800 contact info Titolo: Mrs. Nome: Anne Linda Cognome: Bisp Email: send email Telefono: +45 45 25 90 04	DK (KONGENS LYNGBY)	participant	395˙460.00
4	FORSCHUNGSZENTRUM JUELICH GMBH  Organization address address: Leo-Brandt-Strasse city: JUELICH postcode: 52425 contact info Nome: Volker Cognome: Marx Email: send email Telefono: 492462000000 Fax: +49 2461 612118	DE (JUELICH)	participant	385˙860.00
5	STIFTUNG DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY  Organization address address: NOTKESTRASSE 85 city: HAMBURG postcode: 22607 contact info Titolo: Dr. Nome: Ute Cognome: Krell Email: send email Telefono: +49 40 8998 4508 Fax: +49 40 8994 4508	DE (HAMBURG)	participant	257˙000.00
6	KOBENHAVNS UNIVERSITET	DK	participant	154˙060.00
7	GLO-USA INC LLC  Organization address address: BORDEAUX DRIVE 1225 city: SUNNYVALE CA postcode: 94089 contact info Nome: Anie Cognome: Roche Email: send email Telefono: 14085984400	US (SUNNYVALE CA)	participant	0.00

Mappa

 Word cloud

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 Obiettivo del progetto (Objective)

'The suggested project aims at developing a nanowire (NW) technology applied to III-nitride and III-V materials to improve the present Solid State Lighting (SSL) solutions. Present white light emitting diode (LED) emitters are based on thin film III-nitride technology, and a combination of violet-blue LEDs and suitable phosphor coatings has yielded a light emission efficacy of > 100 lm/W with an operating lifetime > 50000 hrs in commercial white LEDs. The color rendering is generally unsatisfactory, however, and the cost is so far prohibitive for general market penetration. Our NW approach is based on combining three (blue-green-red) or four (blue-green-yellow-red) single NW LEDs into one white LED package, thereby avoiding the loss in the phosphor downconversion process. Using NW LEDs we also expect to increase the radiative efficiency due to a drastic reduction of the defect density in the active quantum well (QW) regions of the LEDs, and also improve the extraction efficiency of the emitted light. Our suggested employment of large size silicon or sapphire wafers as substrates is predicted to reduce the future fabrication cost by at least a factor 3. To increase the efficiency of white emitters it is necessary to drastically improve the LEDs emitting in the green-yellow part of the spectrum. We suggest to reach the green LED range by the ability to increase the In composition in the radial QWs of the presently grown nitride NW LEDs, and by using AlGaInP materials. The latter material system will also be explored for yellow and red NW LED emission. To realize yellow-red emission quantum dot media will also be employed, either by the SK growth mechanism on the m-plane facets of the NWs, or by separate application of InP/ZnS core-shell dots with red emission. To realize this work a consortium of five partners is suggested, comprising excellent expertise in growth of NWs and in sophisticated studies of structural, electronic and optical properties of the NWs, and also processing into efficient LED structures having long life-times. The safety issues in the growth and handling of NWs are secured in collaboration with the Nano-Safety project at ULUND. The materials used are favorable from the environmental point of view.'