WO2009079279A3 - Photovoltaics with interferometric back side masks - Google Patents

Photovoltaics with interferometric back side masks Download PDF

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Publication number
WO2009079279A3
WO2009079279A3 PCT/US2008/086098 US2008086098W WO2009079279A3 WO 2009079279 A3 WO2009079279 A3 WO 2009079279A3 US 2008086098 W US2008086098 W US 2008086098W WO 2009079279 A3 WO2009079279 A3 WO 2009079279A3
Authority
WO
WIPO (PCT)
Prior art keywords
interferometric
mask
back side
reflections
photovoltaics
Prior art date
Application number
PCT/US2008/086098
Other languages
French (fr)
Other versions
WO2009079279A2 (en
Inventor
Manish Kothari
Kasra Khazeni
Original Assignee
Qualcomm Mems Technologies Inc
Manish Kothari
Kasra Khazeni
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 Qualcomm Mems Technologies Inc, Manish Kothari, Kasra Khazeni filed Critical Qualcomm Mems Technologies Inc
Priority to JP2010539624A priority Critical patent/JP2011507306A/en
Priority to EP08862139A priority patent/EP2232569A2/en
Priority to CN2008801208264A priority patent/CN101897033B/en
Publication of WO2009079279A2 publication Critical patent/WO2009079279A2/en
Publication of WO2009079279A3 publication Critical patent/WO2009079279A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0216—Coatings
    • H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • H01L31/02168—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the solar cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/001—Optical devices or arrangements for the control of light using movable or deformable optical elements based on interference in an adjustable optical cavity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/284—Interference filters of etalon type comprising a resonant cavity other than a thin solid film, e.g. gas, air, solid plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0224—Electrodes
    • H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

An interferometric mask (300) covers reflective conductors (1660, 1730) on the back side of a photovoltaic device. Such an interferometric mask may reduce reflections of incident light from the conductors. In various embodiments, the mask reduces reflections, so that a front and back electrode pattern appears black or similar in color to surrounding features of the device. In other embodiments, the mask may modulate reflections of light such that the electrode pattern matches a color in the visible spectrum.
PCT/US2008/086098 2007-12-17 2008-12-09 Photovoltaics with interferometric back side masks WO2009079279A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010539624A JP2011507306A (en) 2007-12-17 2008-12-09 Photovoltaic device with interference backside mask
EP08862139A EP2232569A2 (en) 2007-12-17 2008-12-09 Photovoltaics with interferometric back side masks
CN2008801208264A CN101897033B (en) 2007-12-17 2008-12-09 Photovoltaics with interferometric back side masks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1440507P 2007-12-17 2007-12-17
US61/014,405 2007-12-17

Publications (2)

Publication Number Publication Date
WO2009079279A2 WO2009079279A2 (en) 2009-06-25
WO2009079279A3 true WO2009079279A3 (en) 2009-08-06

Family

ID=40673151

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2008/086098 WO2009079279A2 (en) 2007-12-17 2008-12-09 Photovoltaics with interferometric back side masks
PCT/US2008/086284 WO2009079307A2 (en) 2007-12-17 2008-12-10 Photovoltaics with interferometric ribbon masks

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2008/086284 WO2009079307A2 (en) 2007-12-17 2008-12-10 Photovoltaics with interferometric ribbon masks

Country Status (7)

Country Link
US (3) US20090242024A1 (en)
EP (2) EP2232569A2 (en)
JP (2) JP2011507306A (en)
KR (2) KR20100093590A (en)
CN (2) CN101897033B (en)
TW (2) TW200937650A (en)
WO (2) WO2009079279A2 (en)

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