A method of making a photovoltaic device is presented. The method includes disposing an absorber layer on a window layer. The method further includes treating at least a portion of the absorber layer with a first solution including a first metal salt to form a first component, wherein the first meta
A method of making a photovoltaic device is presented. The method includes disposing an absorber layer on a window layer. The method further includes treating at least a portion of the absorber layer with a first solution including a first metal salt to form a first component, wherein the first metal salt comprises a first metal selected from the group consisting of manganese, cobalt, chromium, zinc, indium, tungsten, molybdenum, and combinations thereof. The method further includes treating at least a portion of the first component with cadmium chloride to form a second component. The method further includes treating at least a portion of the second component with a second solution including a second metal salt to form an interfacial layer on the second component, wherein the second metal salt comprises a second metal selected from the group consisting of manganese, cobalt, nickel, zinc, and combinations thereof.
대표청구항▼
1. A method of making a photovoltaic device, comprising: disposing an absorber layer on a window layer;treating at least a portion of the absorber layer with a first solution comprising a first metal salt to form a first component, wherein the first metal salt comprises a first metal selected from t
1. A method of making a photovoltaic device, comprising: disposing an absorber layer on a window layer;treating at least a portion of the absorber layer with a first solution comprising a first metal salt to form a first component, wherein the first metal salt comprises a first metal selected from the group consisting of manganese, cobalt, chromium, zinc, indium, tungsten, molybdenum, and combinations thereof;treating at least a portion of the first component with cadmium chloride to form a second component;treating at least a portion of the second component with a second solution comprising a second metal salt to form an interfacial layer on the second component, wherein the second metal salt comprises a second metal selected from the group consisting of manganese, cobalt, nickel, zinc, and combinations thereof. 2. The method of claim 1, wherein the first metal and the second metal are different. 3. The method of claim 1, wherein the first metal and the second metal are the same. 4. The method of claim 1, wherein the first metal salt comprises manganese or zinc. 5. The method of claim 1, wherein the second metal salt comprises manganese or zinc. 6. The method of claim 1, wherein the first metal salt comprises a first metal chloride and the second metal salt comprises a second metal chloride. 7. The method of claim 1, wherein forming the second component comprises doping the absorber layer with the first metal. 8. The method of claim 1, wherein the first metal salt is present in the first solution at a concentration in a range from about 50 g/L to about 1000 g/L. 9. The method of claim 1, wherein treating at least a portion of the absorber layer with the first solution comprises a soaking treatment. 10. The method of claim 1, wherein treating at least a portion of the doped absorber layer with cadmium chloride further comprises a heating treatment. 11. The method of claim 1, wherein forming the interfacial layer comprises forming a telluride of the second metal in the interfacial layer. 12. The method of claim 1, wherein treating at least a portion of the second component with a second solution comprises a soaking treatment. 13. The method of claim 1, wherein the second metal is present in the interfacial layer at a concentration in a range less than about 1 atomic percent of the interfacial layer. 14. The method of claim 1, wherein the interfacial layer has a thickness in a range from about 1 nanometer to about 10 nanometers. 15. The method of claim 1, wherein the absorber layer comprises cadmium telluride, cadmium zinc telluride, cadmium sulfur telluride, cadmium manganese telluride, cadmium magnesium telluride, or combinations thereof. 16. The method of claim 1, wherein the window layer comprises cadmium sulfide, cadmium selenide, oxygenated cadmium sulfide, zinc telluride, zinc selenide, zinc sulfide, indium selenide, indium sulfide, zinc oxihydrate, or combinations thereof. 17. The method of claim 1, further comprising: disposing a transparent layer on a support, anddisposing the window layer on the transparent layer. 18. The method of claim 17, further comprising disposing a back contact layer on the interfacial layer to form the photovoltaic device. 19. The method of claim 1, wherein the photovoltaic device has an open circuit voltage in a range greater than about 800 mV. 20. The method of claim 1, wherein the photovoltaic device has an open circuit resistance in a range less than about 4 ohm-cm−2.
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