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Title:
ELECTROLUMINESCENT DEVICE WITH LIGHT EXTRACTOR
Document Type and Number:
WIPO Patent Application WO2002089218
Kind Code:
A3
Abstract:
The invention concerns an electroluminescent device (1) comprising first (14) and second (5) substantially parallel mirrors (7) for converting electron-hole pairs into photons, and means for generating electrons and holes (6, 8). The converting means (7) and the first (14) and second mirrors (5) are designed to ensure the confinement between the first and second mirrors of photons having at least a selected wavelength, associated with a guided propagation mode. Additionally, the device comprises light extracting means (13) which communicate with part at least of the converting means and the generating means, comprised between the first and second mirrors, and are designed to extract therefrom part at least of the photons in guided mode, so that they reach outside.

Inventors:
RATTIER MAXIME (FR)
BENISTY HENRI (FR)
WEISBUCH CLAUDE (FR)
Application Number:
PCT/FR2002/001341
Publication Date:
January 09, 2003
Filing Date:
April 18, 2002
Export Citation:
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Assignee:
CENTRE NAT RECH SCIENT (FR)
ECOLE POLYTECH (FR)
RATTIER MAXIME (FR)
BENISTY HENRI (FR)
WEISBUCH CLAUDE (FR)
International Classes:
H01L33/10; H01L33/24; G02B6/12; H01L51/52; (IPC1-7): H01L33/00; H01L51/20
Other References:
RATTIER M ET AL: "Ultra-thin, laterally injected light-emitting diodes-the role of photonic crystals for light extraction", CONFERENCE DIGEST. 2000 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE (CAT. NO.00TH8505), CONFERENCE DIGEST. 2000 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE, NICE, FRANCE, 10-15 SEPT. 2000, 2000, Piscataway, NJ, USA, IEEE, USA, pages 1 pp., XP002187482, ISBN: 0-7803-6319-1
ERCHAK A A ET AL: "ENHANCED COUPLING TO VERTICAL RADIATION USING A TWO-DIMENSIONAL PHOTONIC CRYSTAL IN A SEMICONDUCTOR LIGHT-EMITTING DIODE", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 78, no. 5, 29 January 2001 (2001-01-29), pages 563 - 565, XP000994474, ISSN: 0003-6951
DELBEKE D ET AL: "Electrically pumped photonic crystal micro-cavity light emitting diodes", 1999 DIGEST OF THE LEOS SUMMER TOPICAL MEETINGS: NANOSTRUCTURES AND QUANTUM DOTS/WDM COMPONENTS/VCSELS AND MICROCAVATIES/RF PHOTONICS FOR CATV AND HFC SYSTEMS (CAT. NO.99TH8455), 1999 DIGEST OF THE LEOS SUMMER TOPICAL MEETINGS, SAN DIEGO, CA, USA, 26, 1999, Piscataway, NJ, USA, IEEE, USA, pages III71 - III72, XP002187483, ISBN: 0-7803-5633-0
GOURLEY P L ET AL: "OPTICAL PROPERTIES OF TWO-DIMENSIONAL PHOTONIC LATTICES FABRICATED AS HONEYCOMB NANOSTRUCTURES IN COMPOUND SEMICONDUCTORS", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 64, no. 6, 7 February 1994 (1994-02-07), pages 687 - 689, XP000422868, ISSN: 0003-6951
BORODITSKY M ET AL: "Light extraction from optically pumped light-emitting diode by thin-slab photonic crystals", APPLIED PHYSICS LETTERS, 23 AUG. 1999, AIP, USA, vol. 75, no. 8, pages 1036 - 1038, XP000868166, ISSN: 0003-6951
ZOOROB M E ET AL: "COMPLETE PHOTONIC BANDGAPS IN 12-FOLD SYMMETRIC QUASICRYSTALS", NATURE, MACMILLAN JOURNALS LTD. LONDON, GB, vol. 404, no. 6779, 2000, pages 740 - 743, XP000914814, ISSN: 0028-0836
DAVID S ET AL: "Wide angularly isotropic photonic bandgaps obtained from two-dimensional photonic crystals with Archimedean-like tilings", OPTICS LETTERS, 15 JULY 2000, OPT. SOC. AMERICA, USA, vol. 25, no. 14, pages 1001 - 1003, XP002187484, ISSN: 0146-9592
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