WO2006135377A3 - Coated nanoparticles and quantum dots for solution-based fabrication of photovoltaic cells - Google Patents

Coated nanoparticles and quantum dots for solution-based fabrication of photovoltaic cells Download PDF

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Publication number
WO2006135377A3
WO2006135377A3 PCT/US2005/026412 US2005026412W WO2006135377A3 WO 2006135377 A3 WO2006135377 A3 WO 2006135377A3 US 2005026412 W US2005026412 W US 2005026412W WO 2006135377 A3 WO2006135377 A3 WO 2006135377A3
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WIPO (PCT)
Prior art keywords
nanoparticles
coated
quantum dots
solution
coated nanoparticles
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PCT/US2005/026412
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French (fr)
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WO2006135377A2 (en
Inventor
Brian M Sager
Dong Yu
Matthew R Robinson
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Nanosolar Inc
Brian M Sager
Dong Yu
Matthew R Robinson
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Application filed by Nanosolar Inc, Brian M Sager, Dong Yu, Matthew R Robinson filed Critical Nanosolar Inc
Publication of WO2006135377A2 publication Critical patent/WO2006135377A2/en
Publication of WO2006135377A3 publication Critical patent/WO2006135377A3/en

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    • H01L31/0322—Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups H01L31/0272 - H01L31/0312 comprising only AIBIIICVI chalcopyrite compounds, e.g. Cu In Se2, Cu Ga Se2, Cu In Ga Se2
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    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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    • B82—NANOTECHNOLOGY
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    • C23C16/45523—Pulsed gas flow or change of composition over time
    • C23C16/45525—Atomic layer deposition [ALD]
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    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
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    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/52—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
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    • H01L31/06—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 adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier
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    • H01L31/0749—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 adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type including a AIBIIICVI compound, e.g. CdS/CulnSe2 [CIS] heterojunction solar cells
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    • H10K30/35—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains comprising inorganic nanostructures, e.g. CdSe nanoparticles
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    • Y10S977/849—Manufacture, treatment, or detection of nanostructure with scanning probe
    • Y10S977/855—Manufacture, treatment, or detection of nanostructure with scanning probe for manufacture of nanostructure
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    • Y10S977/89—Deposition of materials, e.g. coating, cvd, or ald
    • Y10S977/892—Liquid phase deposition
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    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12181—Composite powder [e.g., coated, etc.]
    • 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
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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated

Abstract

CIGS absorber layers fabricated using coated semiconducting nanoparticles and/or quantum dots are disclosed. Core nanoparticles and/or quantum dots containing one or more elements from group IB and/or IIIA and/or VIA may be coated with one or more layers containing elements group IB, IIIA or VIA. Using nanoparticles with a defined surface area, a layer thickness could be tuned to give the proper stoichiometric ratio, and/or crystal phase, and/or size, and/or shape. The coated nanoparticles could then be placed in a dispersant for use as an ink, paste, or paint. By appropriate coating of the core nanoparticles, the resulting coated nanoparticles can have the desired elements intermixed within the size scale of the nanoparticle, while the phase can be controlled by tuning the stochiometry, and the stoichiometry of the coated nanoparticle may be tuned by controlling the thickness of the coating(s).
PCT/US2005/026412 2004-09-18 2005-07-26 Coated nanoparticles and quantum dots for solution-based fabrication of photovoltaic cells WO2006135377A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/943,657 2004-09-18
US10/943,657 US7306823B2 (en) 2004-09-18 2004-09-18 Coated nanoparticles and quantum dots for solution-based fabrication of photovoltaic cells

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WO2006135377A2 WO2006135377A2 (en) 2006-12-21
WO2006135377A3 true WO2006135377A3 (en) 2009-06-04

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