Methods for cis and cigs photovoltaics

Abstract

This invention relates to methods for making materials using a range of compounds, polymeric compounds, and compositions used to prepare semiconductor and optoelectronic materials and devices including thin film and band gap materials for photovoltaic applications including devices and systems for energy conversion and solar cells. In particular, this invention relates to polymeric precursor compounds and precursor materials for preparing photovoltaic layers. This invention further relates to methods for making a CIGS, CIS or CGS material by providing one or more polymeric precursor compounds or inks thereof, providing a substrate, depositing the compounds or inks onto the substrate; and heating the substrate at a temperature of from about 20° C. to about 650° C.

1 . A method for making a material comprising,
 (a) providing one or more CIGS, CIS or CGS polymeric precursor compounds or inks thereof;   (b) providing a substrate;   (c) depositing the compounds or inks onto the substrate; and   (d) heating the substrate at a temperature of from about 20° C. to about 650° C. in an inert atmosphere, thereby producing a material.   
     
     
         2 . The method of  claim 1 , wherein the polymeric precursor compound has the empirical formula Cu x (In 1-y Ga y ) v ((S 1-z Se z )R) w , wherein x is from 0.5 to 1.5, y is from 0 to 1, z is from 0 to 1, v is from 0.5 to 1.5, w is from 2 to 6, and R represents R groups, of which there are w in number, which are independently selected from alkyl, aryl, heteroaryl, alkenyl, amido, silyl, and inorganic and organic ligands. 
     
     
         3 . The method of  claim 1 , wherein the material is a CIGS, CIS or CGS material. 
     
     
         4 . The method of  claim 1 , wherein the material is enriched or deficient in a Group 11 atom. 
     
     
         5 . The method of  claim 1 , wherein the substrate is heated at a temperature of from about 100° C. to about 550° C. 
     
     
         6 . The method of  claim 1 , wherein the substrate is heated at a temperature of from about 200° C. to about 400° C. 
     
     
         7 . The method of  claim 1 , wherein the depositing is done by spraying, spray coating, spray deposition, spray pyrolysis, printing, screen printing, inkjet printing, aerosol jet printing, ink printing, jet printing, stamp/pad printing, transfer printing, pad printing, flexographic printing, gravure printing, contact printing, reverse printing, thermal printing, lithography, electrophotographic printing, electrodepositing, electroplating, electroless plating, bath deposition, coating, wet coating, spin coating, knife coating, roller coating, rod coating, slot die coating, meyerbar coating, lip direct coating, capillary coating, liquid deposition, solution deposition, layer-by-layer deposition, spin casting, solution casting, and combinations of any of the forgoing. 
     
     
         8 . The method of  claim 1 , wherein the substrate is selected from the group of a semiconductor, a doped semiconductor, silicon, gallium arsenide, insulators, glass, molybdenum glass, silicon dioxide, titanium dioxide, zinc oxide, silicon nitride, a metal, a metal foil, molybdenum, aluminum, beryllium, cadmium, cerium, chromium, cobalt, copper, gallium, gold, lead, manganese, molybdenum, nickel, palladium, platinum, rhenium, rhodium, silver, stainless steel, steel, iron, strontium, tin, titanium, tungsten, zinc, zirconium, a metal alloy, a metal silicide, a metal carbide, a polymer, a plastic, a conductive polymer, a copolymer, a polymer blend, a polyethylene terephthalate, a polycarbonate, a polyester, a polyester film, a mylar, a polyvinyl fluoride, polyvinylidene fluoride, a polyethylene, a polyetherimide, a polyethersulfone, a polyetherketone, a polyimide, a polyvinylchloride, an acrylonitrile butadiene styrene polymer, a silicone, an epoxy, paper, coated paper, and combinations of any of the forgoing. 
     
     
         9 . The method of  claim 1 , wherein the substrate is a shaped substrate, a tube, a cylinder, a roller, a rod, a pin, a shaft, a plane, a plate, a blade, a vane, a curved surface or a spheroid. 
     
     
         10 . The method of  claim 1 , wherein the substrate is a layer of a solar cell. 
     
     
         11 . The method of  claim 1 , further comprising an optional step of selenization or sulfurization, either before, during or after steps (c) or (d). 
     
     
         12 . The method of  claim 1 , wherein the material is a semiconductor. 
     
     
         13 . The method of  claim 1 , wherein the material is a photovoltaic. 
     
     
         14 . The method of  claim 1 , wherein the material is a thin film. 
     
     
         15 . The method of  claim 1 , wherein the material is a thin film with a thickness of from 0.001 to 100 micrometers. 
     
     
         16 . The method of  claim 1 , wherein the material is a thin film with a thickness of from 0.1 to 10 micrometers. 
     
     
         17 . A material made by the method of  claim 1 . 
     
     
         18 . A photovoltaic device comprising a material made by the method of claim 
     
     
         19 . A system for providing electrical power comprising a photovoltaic device of  claim 18 . 
     
     
         20 . A method for providing electrical power comprising using a system of  claim 19  to convert light into electrical energy.