WO2007047585A3 - Photonic structures for efficient light extraction and conversion in multi-color light emitting devices - Google Patents

Photonic structures for efficient light extraction and conversion in multi-color light emitting devices Download PDF

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Publication number
WO2007047585A3
WO2007047585A3 PCT/US2006/040384 US2006040384W WO2007047585A3 WO 2007047585 A3 WO2007047585 A3 WO 2007047585A3 US 2006040384 W US2006040384 W US 2006040384W WO 2007047585 A3 WO2007047585 A3 WO 2007047585A3
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
conversion
emitting devices
light extraction
photonic structures
Prior art date
Application number
PCT/US2006/040384
Other languages
French (fr)
Other versions
WO2007047585A2 (en
Inventor
Frederic S Diana
Aurelien J F David
Pierre M Petroff
Claude C A Weisbuch
Original Assignee
Univ California
Frederic S Diana
Aurelien J F David
Pierre M Petroff
Claude C A Weisbuch
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ California, Frederic S Diana, Aurelien J F David, Pierre M Petroff, Claude C A Weisbuch filed Critical Univ California
Priority to JP2008535773A priority Critical patent/JP2009512220A/en
Priority to DE112006002919T priority patent/DE112006002919T5/en
Publication of WO2007047585A2 publication Critical patent/WO2007047585A2/en
Publication of WO2007047585A3 publication Critical patent/WO2007047585A3/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/02Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
    • H01L33/20Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00Nanooptics, e.g. quantum optics or photonic crystals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50Wavelength conversion elements
    • H01L33/501Wavelength conversion elements characterised by the materials, e.g. binder
    • H01L33/502Wavelength conversion materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083Constructional arrangements
    • G02B2006/1213Constructional arrangements comprising photonic band-gap structures or photonic lattices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0083Periodic patterns for optical field-shaping in or on the semiconductor body or semiconductor body package, e.g. photonic bandgap structures

Abstract

A high efficiency light emitting diode (LED) comprised of a substrate, a buffer layer grown on the substrate (if such a layer is needed), a first active region comprising primary emitting species (PES) that are electrically-injected, a second active region comprising secondary emitting species (SES) that are optically-pumped by the light emitted from the PES, and photonic crystals, wherein the photonic crystals act as diffraction gratings to provide high light extraction efficiency, to provide efficient excitation of the SES, and/or to modulate the far-field emission pattern.
PCT/US2006/040384 2005-10-14 2006-10-13 Photonic structures for efficient light extraction and conversion in multi-color light emitting devices WO2007047585A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008535773A JP2009512220A (en) 2005-10-14 2006-10-13 Photonic structure for efficient light extraction and conversion in multicolor light emitting devices
DE112006002919T DE112006002919T5 (en) 2005-10-14 2006-10-13 Photonic structures for efficient light extraction and conversion in multicolor LEDs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/251,365 US7768023B2 (en) 2005-10-14 2005-10-14 Photonic structures for efficient light extraction and conversion in multi-color light emitting devices
US11/251,365 2005-10-14

Publications (2)

Publication Number Publication Date
WO2007047585A2 WO2007047585A2 (en) 2007-04-26
WO2007047585A3 true WO2007047585A3 (en) 2007-09-13

Family

ID=37947351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/040384 WO2007047585A2 (en) 2005-10-14 2006-10-13 Photonic structures for efficient light extraction and conversion in multi-color light emitting devices

Country Status (5)

Country Link
US (3) US7768023B2 (en)
JP (1) JP2009512220A (en)
KR (1) KR20080063403A (en)
DE (1) DE112006002919T5 (en)
WO (1) WO2007047585A2 (en)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7768024B2 (en) * 2005-12-02 2010-08-03 The Regents Of The University Of California Horizontal emitting, vertical emitting, beam shaped, distributed feedback (DFB) lasers fabricated by growth over a patterned substrate with multiple overgrowth
US7781789B2 (en) * 2006-11-15 2010-08-24 The Regents Of The University Of California Transparent mirrorless light emitting diode
US7345298B2 (en) * 2005-02-28 2008-03-18 The Regents Of The University Of California Horizontal emitting, vertical emitting, beam shaped, distributed feedback (DFB) lasers by growth over a patterned substrate
WO2007056354A2 (en) * 2005-11-04 2007-05-18 The Regents Of The University Of California High light extraction efficiency light emitting diode (led)
US8369659B2 (en) 2006-03-22 2013-02-05 The Invention Science Fund I Llc High-Q resonators assembly
US20070223866A1 (en) * 2006-03-22 2007-09-27 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Controllable electromagnetically responsive assembly of self resonant bodies
US7573074B2 (en) 2006-05-19 2009-08-11 Bridgelux, Inc. LED electrode
US7737455B2 (en) * 2006-05-19 2010-06-15 Bridgelux, Inc. Electrode structures for LEDs with increased active area
JP4231880B2 (en) * 2006-07-26 2009-03-04 株式会社東芝 Three-dimensional structure, light emitting device having the same, and method for manufacturing the same
EP2087563B1 (en) 2006-11-15 2014-09-24 The Regents of The University of California Textured phosphor conversion layer light emitting diode
US20090121250A1 (en) * 2006-11-15 2009-05-14 Denbaars Steven P High light extraction efficiency light emitting diode (led) using glass packaging
EP2095437A4 (en) * 2006-11-15 2013-11-20 Univ California High light extraction efficiency sphere led
TWI533351B (en) 2006-12-11 2016-05-11 美國加利福尼亞大學董事會 Metalorganic chemical vapor deposition (mocvd) growth of high performance non-polar iii-nitride optical devices
JP2010512660A (en) * 2006-12-11 2010-04-22 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア Nonpolar and semipolar light emitting devices
WO2008073400A1 (en) 2006-12-11 2008-06-19 The Regents Of The University Of California Transparent light emitting diodes
DE102007025092A1 (en) * 2007-05-30 2008-12-04 Osram Opto Semiconductors Gmbh LED chip
US8791631B2 (en) 2007-07-19 2014-07-29 Quarkstar Llc Light emitting device
JP2009049044A (en) * 2007-08-13 2009-03-05 Sumitomo Electric Ind Ltd Method of manufacturing semiconductor laser
JP5284036B2 (en) * 2007-11-14 2013-09-11 キヤノン株式会社 Light emitting device
US8536600B2 (en) * 2007-12-18 2013-09-17 Koninklijke Philips N.V. Photonic crystal LED
JP5214284B2 (en) * 2008-03-10 2013-06-19 株式会社東芝 Light extraction layer for light emitting device, and organic electroluminescence element using the same
US7839062B2 (en) * 2008-08-29 2010-11-23 Bridgelux Inc. Optical platform to enable efficient LED emission
US7956282B2 (en) * 2008-09-15 2011-06-07 High Power Opto, Inc. Photoelectric conversion element
TWI470823B (en) 2009-02-11 2015-01-21 Epistar Corp Light-emitting device and manufacturing method thereof
GB0902569D0 (en) 2009-02-16 2009-04-01 Univ Southampton An optical device
US20100214282A1 (en) 2009-02-24 2010-08-26 Dolby Laboratories Licensing Corporation Apparatus for providing light source modulation in dual modulator displays
JP5118659B2 (en) * 2009-02-24 2013-01-16 パナソニック株式会社 Light emitting element
TW201044568A (en) 2009-04-20 2010-12-16 3M Innovative Properties Co Non-radiatively pumped wavelength converter
WO2010123814A1 (en) * 2009-04-20 2010-10-28 3M Innovative Properties Company Non-radiatively pumped wavelength converter
KR101068867B1 (en) * 2009-05-28 2011-09-30 삼성엘이디 주식회사 Light Emitting Diode Package
JP2011066073A (en) * 2009-09-15 2011-03-31 Showa Denko Kk Semiconductor light-emitting element
US20110062472A1 (en) * 2009-09-17 2011-03-17 Koninklijke Philips Electronics N.V. Wavelength-converted semiconductor light emitting device
US8963178B2 (en) 2009-11-13 2015-02-24 Seoul Viosys Co., Ltd. Light emitting diode chip having distributed bragg reflector and method of fabricating the same
TWI531088B (en) * 2009-11-13 2016-04-21 首爾偉傲世有限公司 Light emitting diode chip having distributed bragg reflector
CN102782818B (en) 2010-01-27 2016-04-27 耶鲁大学 For the selective etch based on conductivity and its application of GaN device
KR101767284B1 (en) * 2010-02-10 2017-08-23 테네코 오토모티브 오퍼레이팅 컴파니 인코포레이티드 Pressure swirl flow injector with reduced flow variability and return flow
KR100969100B1 (en) * 2010-02-12 2010-07-09 엘지이노텍 주식회사 Light emitting device, method for fabricating the same and light emitting device package
US9991427B2 (en) * 2010-03-08 2018-06-05 Cree, Inc. Photonic crystal phosphor light conversion structures for light emitting devices
WO2011110596A2 (en) * 2010-03-09 2011-09-15 European Nano Invest Ab High efficiency nanostructured photvoltaic device manufacturing
JP5331051B2 (en) * 2010-04-21 2013-10-30 パナソニック株式会社 Light emitting element
KR101047720B1 (en) 2010-04-23 2011-07-08 엘지이노텍 주식회사 Light emitting device, method for fabricating the light emitting device and light emitting device package using the light emitting device
WO2011162479A2 (en) * 2010-06-24 2011-12-29 Seoul Opto Device Co., Ltd. Light emitting diode
KR20120001635A (en) * 2010-06-29 2012-01-04 주식회사 나노브릭 Surface display method and device
EP2599133A2 (en) 2010-07-28 2013-06-05 Seoul Opto Device Co., Ltd. Light emitting diode having distributed bragg reflector
DE102010051287A1 (en) * 2010-11-12 2012-05-16 Osram Opto Semiconductors Gmbh Optoelectronic semiconductor chip and method for its production
DE102010051286A1 (en) * 2010-11-12 2012-05-16 Osram Opto Semiconductors Gmbh Optoelectronic semiconductor chip and method for its production
JP5693745B2 (en) 2010-12-17 2015-04-01 ドルビー ラボラトリーズ ライセンシング コーポレイション Quantum dots for display panels
WO2013078463A1 (en) 2011-11-23 2013-05-30 Quarkstar Llc Light-emitting devices providing asymmetrical propagation of light
EP2823515A4 (en) * 2012-03-06 2015-08-19 Soraa Inc Light emitting diodes with low refractive index material layers to reduce light guiding effects
WO2014004261A1 (en) 2012-06-28 2014-01-03 Yale University Lateral electrochemical etching of iii-nitride materials for microfabrication
WO2014138591A1 (en) 2013-03-07 2014-09-12 Quarkstar Llc Illumination device with multi-color light-emitting elements
CN110274162A (en) 2012-09-13 2019-09-24 夸克星有限责任公司 Luminaire with long-range dispersing element and total internal reflection extractor element
EP2895793B1 (en) 2012-09-13 2020-11-04 Quarkstar LLC Light-emitting devices with reflective elements
KR102118309B1 (en) 2012-09-19 2020-06-03 돌비 레버러토리즈 라이쎈싱 코오포레이션 Quantum dot/remote phosphor display system improvements
KR20140103455A (en) * 2013-02-18 2014-08-27 삼성디스플레이 주식회사 Display device using photonic crystal
CN103137840A (en) * 2013-02-27 2013-06-05 中国科学院半导体研究所 Light emitting diode of white light and manufacturing method
US9752757B2 (en) 2013-03-07 2017-09-05 Quarkstar Llc Light-emitting device with light guide for two way illumination
CN105009193B (en) 2013-03-08 2019-01-11 杜比实验室特许公司 Technology for the dual modulation displays converted with light
WO2014144706A2 (en) * 2013-03-15 2014-09-18 Quarkstar Llc Color tuning of light-emitting devices
US9564550B2 (en) * 2013-10-28 2017-02-07 Infineon Technologies Dresden Gmbh Optoelectronic component, a method for manufacturing an optoelectronic component, and a method for processing a carrier
KR102125450B1 (en) * 2013-12-05 2020-06-22 엘지이노텍 주식회사 Light conversion member and lighting device including the same
WO2015148244A2 (en) 2014-03-26 2015-10-01 Dolby Laboratories Licensing Corporation Global light compensation in a variety of displays
US11095096B2 (en) 2014-04-16 2021-08-17 Yale University Method for a GaN vertical microcavity surface emitting laser (VCSEL)
KR102310805B1 (en) * 2014-08-07 2021-10-08 엘지이노텍 주식회사 Phosphor plate and lighting device including the same
JP6236188B2 (en) 2014-08-21 2017-11-22 ドルビー ラボラトリーズ ライセンシング コーポレイション Dual modulation technology with light conversion
KR102425935B1 (en) 2014-09-30 2022-07-27 예일 유니버시티 A METHOD FOR GaN VERTICAL MICROCAVITY SURFACE EMITTING LASER (VCSEL)
US11018231B2 (en) 2014-12-01 2021-05-25 Yale University Method to make buried, highly conductive p-type III-nitride layers
JP2016178234A (en) * 2015-03-20 2016-10-06 株式会社東芝 Semiconductor light-receiving device
WO2016187421A1 (en) 2015-05-19 2016-11-24 Yale University A method and device concerning iii-nitride edge emitting laser diode of high confinement factor with lattice matched cladding layer
DE102016101442A1 (en) 2016-01-27 2017-07-27 Osram Opto Semiconductors Gmbh Conversion element and radiation-emitting semiconductor device with such a conversion element
FR3068173B1 (en) * 2017-06-27 2020-05-15 Aledia OPTOELECTRONIC DEVICE
US10991856B2 (en) * 2017-12-21 2021-04-27 Lumileds Llc LED with structured layers and nanophosphors
US11042056B2 (en) 2019-03-26 2021-06-22 United States Of America As Represented By The Secretary Of The Air Force Photonic crystal-enabled display stitching
US11372134B2 (en) 2019-06-04 2022-06-28 United States Of America As Represented By The Secretary Of The Air Force Peel-and-adhere photonic crystal
US11353627B2 (en) 2019-07-31 2022-06-07 United States Of America As Represented By The Secretary Of The Air Force Compact star tracker with photonic crystal pointing
US20230155057A1 (en) * 2020-04-08 2023-05-18 Ams-Osram International Gmbh Semiconductor Component and Process for Manufacturing a Semiconductor Component
WO2021204654A1 (en) * 2020-04-08 2021-10-14 Osram Opto Semiconductors Gmbh Optoelectronic component
US11592166B2 (en) 2020-05-12 2023-02-28 Feit Electric Company, Inc. Light emitting device having improved illumination and manufacturing flexibility
US11876042B2 (en) 2020-08-03 2024-01-16 Feit Electric Company, Inc. Omnidirectional flexible light emitting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050205884A1 (en) * 2004-03-19 2005-09-22 Lumileds Lighting U.S., Llc Semiconductor light emitting devices including in-plane light emitting layers
US7098589B2 (en) * 2003-04-15 2006-08-29 Luminus Devices, Inc. Light emitting devices with high light collimation
US20060202226A1 (en) * 2005-02-28 2006-09-14 The Regents Of The University Of California Single or multi-color high efficiency light emitting diode (LED) by growth over a patterned substrate

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226053A (en) 1991-12-27 1993-07-06 At&T Bell Laboratories Light emitting diode
US5362977A (en) 1992-12-28 1994-11-08 At&T Bell Laboratories Single mirror light-emitting diodes with enhanced intensity
US5563811A (en) * 1993-04-29 1996-10-08 Humonics International Inc. Microprocessor controlled drive circuit for a liquid nebulizer having a plurality of oscillators
JPH07326820A (en) 1994-05-30 1995-12-12 Mitsubishi Electric Corp Variable wavelength semiconductor laser device
US5779924A (en) 1996-03-22 1998-07-14 Hewlett-Packard Company Ordered interface texturing for a light emitting device
US5771256A (en) 1996-06-03 1998-06-23 Bell Communications Research, Inc. InP-based lasers with reduced blue shifts
JPH11135838A (en) 1997-10-20 1999-05-21 Ind Technol Res Inst White-color light-emitting diode and manufacture thereof
JP3559453B2 (en) 1998-06-29 2004-09-02 株式会社東芝 Light emitting element
US6504180B1 (en) 1998-07-28 2003-01-07 Imec Vzw And Vrije Universiteit Method of manufacturing surface textured high-efficiency radiating devices and devices obtained therefrom
US6155699A (en) 1999-03-15 2000-12-05 Agilent Technologies, Inc. Efficient phosphor-conversion led structure
DE19918370B4 (en) 1999-04-22 2006-06-08 Osram Opto Semiconductors Gmbh LED white light source with lens
US6504301B1 (en) 1999-09-03 2003-01-07 Lumileds Lighting, U.S., Llc Non-incandescent lightbulb package using light emitting diodes
US6357889B1 (en) 1999-12-01 2002-03-19 General Electric Company Color tunable light source
US6657236B1 (en) 1999-12-03 2003-12-02 Cree Lighting Company Enhanced light extraction in LEDs through the use of internal and external optical elements
US6538371B1 (en) 2000-03-27 2003-03-25 The General Electric Company White light illumination system with improved color output
US6525464B1 (en) 2000-09-08 2003-02-25 Unity Opto Technology Co., Ltd. Stacked light-mixing LED
KR100377180B1 (en) * 2001-05-03 2003-03-26 주식회사 하이닉스반도체 Method for fabricating ferroelectric memory device
JP2003069145A (en) 2001-06-14 2003-03-07 Furukawa Electric Co Ltd:The Method of manufacturing distributed feedback semiconductor laser element group
US6740906B2 (en) 2001-07-23 2004-05-25 Cree, Inc. Light emitting diodes including modifications for submount bonding
US6903379B2 (en) 2001-11-16 2005-06-07 Gelcore Llc GaN based LED lighting extraction efficiency using digital diffractive phase grating
JP3782357B2 (en) 2002-01-18 2006-06-07 株式会社東芝 Manufacturing method of semiconductor light emitting device
JP4295536B2 (en) * 2003-03-25 2009-07-15 株式会社リコー Image forming apparatus
US7083993B2 (en) * 2003-04-15 2006-08-01 Luminus Devices, Inc. Methods of making multi-layer light emitting devices
KR20040092512A (en) 2003-04-24 2004-11-04 (주)그래픽테크노재팬 A semiconductor light emitting device with reflectors having a cooling function
US7683377B2 (en) * 2003-07-16 2010-03-23 Panasonic Corporation Semiconductor light emitting device, method of manufacturing the same, and lighting apparatus and display apparatus using the same
US7012279B2 (en) 2003-10-21 2006-03-14 Lumileds Lighting U.S., Llc Photonic crystal light emitting device
US20050156510A1 (en) 2004-01-21 2005-07-21 Chua Janet B.Y. Device and method for emitting output light using group IIB element selenide-based and group IIA element gallium sulfide-based phosphor materials
JP4976857B2 (en) 2004-02-20 2012-07-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Illumination system having a radiation source and a fluorescent material
JP4020092B2 (en) * 2004-03-16 2007-12-12 住友電気工業株式会社 Semiconductor light emitting device
US20050205883A1 (en) * 2004-03-19 2005-09-22 Wierer Jonathan J Jr Photonic crystal light emitting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7098589B2 (en) * 2003-04-15 2006-08-29 Luminus Devices, Inc. Light emitting devices with high light collimation
US20050205884A1 (en) * 2004-03-19 2005-09-22 Lumileds Lighting U.S., Llc Semiconductor light emitting devices including in-plane light emitting layers
US20060202226A1 (en) * 2005-02-28 2006-09-14 The Regents Of The University Of California Single or multi-color high efficiency light emitting diode (LED) by growth over a patterned substrate

Also Published As

Publication number Publication date
US8227825B2 (en) 2012-07-24
JP2009512220A (en) 2009-03-19
DE112006002919T5 (en) 2008-11-27
WO2007047585A2 (en) 2007-04-26
KR20080063403A (en) 2008-07-03
US7768023B2 (en) 2010-08-03
US20070085100A1 (en) 2007-04-19
US20110291130A1 (en) 2011-12-01
US20100327305A1 (en) 2010-12-30

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