Photovoltaic cell comprising metal-free phthalocyanine
First Claim
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1. A photovoltaic apparatus comprising a device having a first, ohmic electrode and a second, barrier electrode having sandwiched therebetween a photoactive layer comprising metal-free phthalocyanine dispersed in an electrically insulating binder and leads connecting each of said electrodes to an electrical circuit forming a load circuit wherein said device is the power source.
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Abstract
A photovoltaic cell wherein the photoactive layer comprises a thin layer of metal-free phthalocyanine dispersed in a binder. The electrical output is greatly in excess of that obtained from prior art organic semiconductor photovoltaic cells of the same surface area.
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30 Claims
- 1. A photovoltaic apparatus comprising a device having a first, ohmic electrode and a second, barrier electrode having sandwiched therebetween a photoactive layer comprising metal-free phthalocyanine dispersed in an electrically insulating binder and leads connecting each of said electrodes to an electrical circuit forming a load circuit wherein said device is the power source.
- 18. A photovoltaic apparatus comprising a device having a first electrode having coated thereon a photoactive layer comprising from about 55 percent to about 65 percent, by weight, x-form metal-free phthalocyanine dispersed in an electrically insulating binder comprising polyvinyl acetate, a second, barrier electrode residing on said photoactive layer and leads connecting each of said electrodes to an electrical circuit forming a load circuit wherein said device is the power source.
- 24. The method of converting light energy into electrical energy which comprises providing a device comprising a first, ohmic electrode and a second, barrier electrode and sandwiched therebetween a photoactive layer comprising metal-free phthalocyanine dispersed in an electrically insulating binder, and exposing said photoactive layer to light through said barrier electrode.
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