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WO2002035565A1 - Capteurs et reseaux et procede de fabrication associe - Google Patents

Capteurs et reseaux et procede de fabrication associe Download PDF

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Publication number
WO2002035565A1
WO2002035565A1 PCT/AU2001/001354 AU0101354W WO0235565A1 WO 2002035565 A1 WO2002035565 A1 WO 2002035565A1 AU 0101354 W AU0101354 W AU 0101354W WO 0235565 A1 WO0235565 A1 WO 0235565A1
Authority
WO
WIPO (PCT)
Prior art keywords
peuvs
pec
selected areas
layer
electrically
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/AU2001/001354
Other languages
English (en)
Inventor
George Phani
Igor Lvovich Skryabin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sustainable Technologies International Pty Ltd
Original Assignee
Sustainable Technologies International Pty Ltd
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 Sustainable Technologies International Pty Ltd filed Critical Sustainable Technologies International Pty Ltd
Priority to AU2002210269A priority Critical patent/AU2002210269A1/en
Publication of WO2002035565A1 publication Critical patent/WO2002035565A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/20—Light-sensitive devices
    • H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
    • H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
    • 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
    • Y02E10/542—Dye sensitized solar cells

Definitions

  • This invention relates to the sensing, detection and measurements of Ultra Violet Radiation, devices and methods used for such measurements. More particularly, the present invention relates to photoelectrochemical UV sensors. More particularly, the present invention relates to the design of Photoelectrochemical UV Sensors (PEUVS) and PEUVS arrays and methods to manufacture thereof.
  • PEUVS Photoelectrochemical UV Sensors
  • the devices built according to the first principle utilise solid-state semiconducting structures and their junctions. These devices are suitable for both qualitative and quantitative measurements of UV radiation intensity, but usually are expensive to manufacture [ US4772335: Photovoltaic device responsive to ultraviolet radiation, Huang, Wingo C, 1988; W09829715A1: Optical Array converting UV, Ian Kuklins i, 1998) .
  • the devices built according to the second principle utilise photochromic material that changes colour when illuminated by UV radiation.
  • JP10300576A2 Film and card for UV check as well as seal for UV check, Kuwamoto Shu i and Suzuki Yoshio, 1998]. These devices are not expensive, but their usage for quantitative measurements is limited.
  • Photoelectrochemical UV Sensors disclosed in this application, are capable of detecting and measuring UV radiation intensity and dose without undue expense.
  • PEUVS cells are based on photovoltaic effect on junction between wide band gap ⁇ - semiconductor and electrolyte.
  • One typical arrangement involves two glass substrates, each utilising a substantially planar electrically conducting (PEC) coating upon the internal surface of the substrates (the PEUVS of the first type) .
  • Another typical arrangement involves the first substrate being glass or UV transparent polymeric material and utilising a PEC upon the internal surface of the substrate, with the second substrate being polymeric (PEUVS of the second type) .
  • the internal surface of said second polymeric substrate is coated with a PEC
  • said second polymeric substrate comprises a polymeric foil laminate, utilising adjacent electrically conductive material, such as carbon.
  • the external surface may be a laminated metal film, and in other arrangements, the external surface may be coated by a metal .
  • PEUVS contain a photoanode, typically comprising a nanoporous wide bandgap semiconducting oxide (e.g. titanium dioxide known as titania) layer attached to one conductive coating, and a cathode, typically comprising a redox electrocatalyst layer (for example Pt-based or carbon- based) attached to the other conductive coating or conductive material.
  • a photoanode typically comprising a nanoporous wide bandgap semiconducting oxide (e.g. titanium dioxide known as titania) layer attached to one conductive coating
  • a cathode typically comprising a redox electrocatalyst layer (for example Pt-based or carbon- based) attached to the other conductive coating or conductive material.
  • the semiconducting layer can be formed by one of the techniques available for deposition of films with controlled stoichiometry (e.g. sol-gel, screen printing, physical and chemical vapour deposition, etc.)
  • An electrolyte containing a redox mediator (for example iodide/triodide) is located between the photoanode and cathode, and the electrolyte is sealed from the environment.
  • a redox mediator for example iodide/triodide
  • Nitrile based electrolytes such as, for example, valeronatrile, mtoluonitrile, acetonitrile
  • molten salt electrolytes molten salt electrolytes
  • gel type electrolytes are used.
  • Other electrolytes can also be used subject to their stability under UV radiation and temperature stress.
  • PEUVS single cell designs would be advantaged by an improved sensitivity that could be achieved by an increased size of individual cell.
  • transparent PEC which usually comprise a metal oxide(s)
  • ECM electrically conductive material
  • the dominant selection criteria for the electrically conductive material deposited upon the PEC are cost and conductivity, so the selected material is commonly chemically reactive towards the electrolyte of the PEUVS cells.
  • a protective layer for example low lead glass frit or polymeric materials
  • Another way of increasing size of a PEUVS is to connect individual cells in series. External series connection of RPEC cells can increase manufacturing costs and introduce additional resistive losses. To enable internal series connection of adjacent PEUVS cells, selected areas of such PEC must be electrically isolated, portions of such areas overlapped when laminated; interconnects used to connect such overlapped areas and electrolyte-impermeable barriers used to separate the electrolyte of individual cells.
  • Figure 1 is a cross-sectional view of a PEUVS of the first type, incorporating the constituent layers of the inventions .
  • Figure 2 is a cross-sectional view of a PEUVS of the first type with improved current output.
  • Figure 3 is a cross-sectional view of a PEUVS of the first type with improved voltage output.
  • Figure 4 is a cross-sectional view of PEUVS of the second type.
  • Figure 5 is a cross-sectional view of the PEUVS of ------T - the second type with improved voltage output.
  • Figure 6 is a cross-sectional view of UV sensing array based on PEUVS of the first type.
  • Figure 7 is a plan view of UV sensing array based on PEUVS of the second type.
  • the electrical connections to the external measuring devices are made by creating conductive pattern on the planar electrical conductor coatings (for example, by means of laser ablation, chemical etching) .
  • Figure 8 is a flow chart of a process to manufacture PEUVS of the first type with improved voltage output.
  • the PEUVS of the first type comprises a photoanode (1) and a cathode (2) .
  • the photoanode comprises a glass substrate (3), coated with a fluorine doped tin oxide transparent electron conductor coating (5) . Both glass substrate (3) and conducting coating (5) are substantially transparent to UV radiation.
  • the nanoporous layer of titania (7) is screen printed onto the selected area of the transparent electrical conductor (5) .
  • the substrate (4) and the planar electrical conductor (6) used for cathode (2) in this example are identical to those used for the photoanode.
  • Thin layer of Pt catalyst is screen-printed onto selected area of the electrical conductor ( 6) .
  • this diagram of a PEUVS of the first type with improved voltage comprises two glass substrates (3) and (4) , both of which are coated with a transparent planar electron conductor (5) and (6) .
  • the cathode comprises a platinum electrocatalyst (8) attached to the conductor (6) .
  • the photoanode comprises nanoparticulate titania layer (7) attached to the other conductor (5) .
  • the interconnect (15) and the strips where the PEC has been removed (14) by laser.
  • the interconnect is comprised of two different electrically conducting particles, 45um titanium and 0.5um tungsten, embedded within a hot melted matrix.
  • the PEUVS of the second type compromises a glass substrate (3) which is coated with a transparent planar electron conductor (5) .
  • This PEC layer is selectively isolated (14) to separate two electrodes of the PEUVS .
  • Titania (7) is deposited onto the TEC glass layer followed by a ceramic oxide spacer layer (zirconia) (16) and a carbon based catylist/conductor layer (17) .
  • the ceramic oxide spacer layer is filled with a redox electrolyte 9.
  • a second substrate - metallic/polymer backing laminate (14) is sealed over the PEUVS device in such a way that metalic part of the laminate forms external surface of the device, thus creating inpermittable barrier for moisture and oxygen .
  • the PEUVS of the second type with improved voltage comprises two (or more) PEUVS cells of the second type (as described in the previous example, see Fig.4) connected in series.
  • an array of the PEUVS ' s of the first type is presented.
  • the array consists of 3 PEUVS of the first type separated by sealant (11) .
  • the cathodes of the said PEUVS of the first type are connected to form a common ( + ) electrode of the array (6) .
  • the transparent PEC (5) of the photoanodes is electrically isolated by removing portions of PEC material (14) and connected to the 3 separate outputs of the array.
  • FIG. 7 a plan view of PEUVS of the second type arranged in an array is presented.
  • the array consists of 9 PEUVS (A-I) arranged on one substrate coated with PEC.
  • PEC layer is selectively removed (14) to separate each sensor.
  • the PEC layer is used as a common electrode of the array and 9 separate outputs (A-I) are connected (10) to an external current and charge meters .
  • a manufacturing process consists of printing and firing stages that are followed by assembly of a PEUVS.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Hybrid Cells (AREA)
  • Air Bags (AREA)

Abstract

L"invention concerne un dispositif capteur photovoltaïque photo-électrochimique (PEUVS) qui comporte une photo-anode (1), une cathode et un électrolyte (9). La photo-anode comporte un substrat (3), un conducteur électrique plan (PEC) (5) s"appuyant sur des zones sélectionnées dudit substrat et au moins une couche de semi-conducteur à large bande interdite (7) appliquée aux zones sélectionnées du PEC, ledit électrolyte étant placé entre le semi-conducteur à large bande interdite et ladite cathode.
PCT/AU2001/001354 2000-10-25 2001-10-19 Capteurs et reseaux et procede de fabrication associe Ceased WO2002035565A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002210269A AU2002210269A1 (en) 2000-10-25 2001-10-19 Sensors and array and method to manufacture thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR0995A AUPR099500A0 (en) 2000-10-25 2000-10-25 Uv sensors and arrays and methods to manufacture thereof
AUPR0995 2000-10-25

Publications (1)

Publication Number Publication Date
WO2002035565A1 true WO2002035565A1 (fr) 2002-05-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2001/001354 Ceased WO2002035565A1 (fr) 2000-10-25 2001-10-19 Capteurs et reseaux et procede de fabrication associe

Country Status (2)

Country Link
AU (2) AUPR099500A0 (fr)
WO (1) WO2002035565A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312123A1 (fr) * 1975-05-23 1976-12-17 Anvar Generateur photoelectrochimique
US4181593A (en) * 1978-06-22 1980-01-01 Gte Laboratories Incorporated Modified titanium dioxide photoactive electrodes
EP0064850A2 (fr) * 1981-05-04 1982-11-17 Diamond Shamrock Corporation Convertisseur d'énergie solaire
US4521499A (en) * 1983-05-19 1985-06-04 Union Oil Company Of California Highly conductive photoelectrochemical electrodes and uses thereof
DE4306407A1 (de) * 1993-03-02 1994-09-08 Abb Research Ltd Detektor
EP0692800A2 (fr) * 1994-07-15 1996-01-17 Ishihara Sangyo Kaisha, Ltd. Film d'oxyde de titane à surface modifiée, procédé de fabrication et dispositif de conversion photoélectrique utilisant celui-ci
US5695628A (en) * 1994-09-28 1997-12-09 Becromal S.P.A. Method of use of an aluminum foil
JP2000223167A (ja) * 1999-01-28 2000-08-11 Fuji Photo Film Co Ltd 光電変換素子および光電気化学電池
WO2000057441A1 (fr) * 1999-03-18 2000-09-28 Sustainable Technologies International Pty Ltd Procedes de formation d'interconnexions dans des dispositifs photoelectrochimiques photovoltaiques a reaction a cellules multiples
WO2000059816A1 (fr) * 1999-03-30 2000-10-12 Sustainable Technologies International Pty Ltd Procedes de fabrication de dispositifs photoelectrochimiques regenerateurs a cellule unique et a cellules multiples
WO2000062315A1 (fr) * 1999-04-09 2000-10-19 Sustainable Technologies International Pty Ltd Procedes de mise en place de connexions isolantes et electriques dans des dispositifs photoelectrochimiques a regeneration comportant une ou plusieurs cellules

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312123A1 (fr) * 1975-05-23 1976-12-17 Anvar Generateur photoelectrochimique
US4181593A (en) * 1978-06-22 1980-01-01 Gte Laboratories Incorporated Modified titanium dioxide photoactive electrodes
EP0064850A2 (fr) * 1981-05-04 1982-11-17 Diamond Shamrock Corporation Convertisseur d'énergie solaire
US4521499A (en) * 1983-05-19 1985-06-04 Union Oil Company Of California Highly conductive photoelectrochemical electrodes and uses thereof
DE4306407A1 (de) * 1993-03-02 1994-09-08 Abb Research Ltd Detektor
EP0692800A2 (fr) * 1994-07-15 1996-01-17 Ishihara Sangyo Kaisha, Ltd. Film d'oxyde de titane à surface modifiée, procédé de fabrication et dispositif de conversion photoélectrique utilisant celui-ci
US5695628A (en) * 1994-09-28 1997-12-09 Becromal S.P.A. Method of use of an aluminum foil
JP2000223167A (ja) * 1999-01-28 2000-08-11 Fuji Photo Film Co Ltd 光電変換素子および光電気化学電池
WO2000057441A1 (fr) * 1999-03-18 2000-09-28 Sustainable Technologies International Pty Ltd Procedes de formation d'interconnexions dans des dispositifs photoelectrochimiques photovoltaiques a reaction a cellules multiples
WO2000059816A1 (fr) * 1999-03-30 2000-10-12 Sustainable Technologies International Pty Ltd Procedes de fabrication de dispositifs photoelectrochimiques regenerateurs a cellule unique et a cellules multiples
WO2000062315A1 (fr) * 1999-04-09 2000-10-19 Sustainable Technologies International Pty Ltd Procedes de mise en place de connexions isolantes et electriques dans des dispositifs photoelectrochimiques a regeneration comportant une ou plusieurs cellules

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 2000-658382/64 *

Also Published As

Publication number Publication date
AUPR099500A0 (en) 2000-11-16
AU2002210269A1 (en) 2002-05-06

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