EP0024615A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrode for photovoltaic cell and method of manufacturing it
Assignee: Ses Inc
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Filing: 1980-08-11
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Granted: —
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Expires: 2000-08-11
Abstract
Abstract In a photovoltaic cell which comprises a first electrode, a first layer of cadmium sulfide, a second layer of cuprous sulfide forming a barrier junction with said first layer, and a second electrode, the improvement wherein said second electrode is formed by coating a conducting metal wire with a solid polymer containing electrically conductive particles, and attaching the coated wire to the cuprous sulfide layer by the application of moderate heat and/or pressure.
Inventors
- 👤 Richard L. Moyer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/20; H10F77/206; H10F77/211; H10F77/30; H10F77/306; H10F77/311; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
103 words
A photovoltaic cell comprising: (a) an electrically conductive first electrode (11,22); (b) a film of a first semiconductor material (23) of one type conductivity covering at least a portion of said first electrode; (c) a film of a second semiconductor material (24) of opposite type conductivity and forming a p-n junction with the first semiconductor material; and (d) a second electrode (12), in ohmic contact with said second semiconductor material and which allows radiant energy to pass into the second semiconductor material, said second electrode (12) comprising one or more electrically conductive metal wires coated with a solid polymer containing electrically conductive particles.
Claim 2
Dependent Claim
103 words
A photovoltaic cell comprising: (a) an electrically conductive first electrode (11,22); (b) a film of a first semiconductor material (23) of one type conductivity covering at least a portion of said first electrode; (c) a film of a second semiconductor material (24) of opposite type conductivity and forming a p-n junction with the first semiconductor material; and (d) a second electrode (12), in ohmic contact with said second semiconductor material and which allows radiant energy to pass into the second semiconductor material, said second electrode (12) comprising one or more electrically conductive metal wires coated with a solid polymer containing electrically conductive particles.
Claim 3
Dependent Claim
22 words
A cell according to claim 1 wherein said first semiconductor material is cadmium sulfide and said second semiconductor material is cuprous sulfide.
Claim 4
Dependent Claim
17 words
A cell according to claims 1 or 2 wherein said conducting metal wire is a copper wire.
Claim 5
Dependent Claim
14 words
A cell according to claim 3 wherein said polymer is a vinylidene fluoride/hexafluoropropene copolymer.
Claim 6
Dependent Claim
14 words
A cell according to claim 4 wherein said conductive particles are crystalline graphite particles.
Claim 7
Dependent Claim
26 words
A cell according to claim 5 wherein the polymer coating contains between about 5 percent by weight and about 95 percent by weight crystalline graphite particles.
Claim 8
Dependent Claim
13 words
A cell according to claim 1 wherein said polymer is a thermoplastic polymer.
Claim 9
Dependent Claim
13 words
A cell according to claim 1 wherein said polymer is a thermosetting polymer.
Claim 10
Dependent Claim
25 words
A cell according to claim 2 wherein said electrically conductive particle is selected from the group consisting of conductive carbon black, crystalline graphite and gold.
Claim 11
Dependent Claim
44 words
An improvement in the process for forming a photovoltaic cell, which improvement comprises: i) coating a conducting metal wire with a polymer containing electrically conductive particles; ii) attaching said coated wire to said cell by the application of heat, pressure, or heat and pressure.
Claim 12
Dependent Claim
44 words
An improvement in the process for forming a photovoltaic cell, which improvement comprises: i) coating a conducting metal wire with a polymer containing electrically conductive particles; ii) attaching said coated wire to said cell by the application of heat, pressure, or heat and pressure.
Claim 13
Dependent Claim
17 words
A process according to claim 10 wherein said photovoltaic cell is a cadmium sulfide/cuprous sulfide photovoltaic cell.
Claim 14
Dependent Claim
15 words
A process according to claim 10 wherein said photovoltaic cell is a silicon solar cell.
Claim 15
Dependent Claim
57 words
A process according to claims 10 to 12 wherein said wire is coated by passing the wire through a dispersion of said polymer and said electrically conductive particles in a carrier liquid, passing the resulting wire through a die so as to provide a uniform coating, and evaporating at least a substantial portion of said carrier liquid.
Claim 16
Dependent Claim
12 words
A process according to claim 13 wherein said carrier liquid is isophorone.
Claim 17
Dependent Claim
17 words
A process according to claim 13 wherein the evaporation is effected between about 80 and about 95°C.
Claim 18
Dependent Claim
45 words
A process according to claims 10 to 15 wherein said coated wire is attached to said cell by the application of heat in the range of about 150°C to about 230°C and external pressure in the range of about 15 psi to about 100 psi.
Claim 19
Dependent Claim
24 words
1 7. A process according to claims 10 to 16 wherein two or more coated wires are attached to said cell in parallel arrangement.
Claim 20
Dependent Claim
42 words
A process according to claims 10 to 17 wherein the electrically conductive metal wire coated with the polymer containing electrically conductive particles is attached to the outer semiconductor layer of said cell by the application of heat, pressure, or heat and pressure.
References Cited (Backward Citations)
No citation records indexed.
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