Formation of solar cells with conductive barrier layers and foil substrates
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-029/06
H01L-021/00
출원번호
US-0795594
(2010-06-07)
등록번호
US-8525152
(2013-09-03)
발명자
/ 주소
Leidholm, Craig
Bollman, Brent
Sheats, James R.
Kao, Sam
Roscheisen, Martin R.
출원인 / 주소
Nanosolar, Inc.
대리인 / 주소
Isenberg, Joshua D.
인용정보
피인용 횟수 :
0인용 특허 :
108
초록▼
Methods and devices are provided for absorber layers formed on foil substrate. In one embodiment, a method of manufacturing photovoltaic devices may be comprised of providing a substrate comprising of at least one electrically conductive aluminum foil substrate, at least one electrically conductive
Methods and devices are provided for absorber layers formed on foil substrate. In one embodiment, a method of manufacturing photovoltaic devices may be comprised of providing a substrate comprising of at least one electrically conductive aluminum foil substrate, at least one electrically conductive diffusion barrier layer, and at least one electrically conductive electrode layer above the diffusion barrier layer. The diffusion barrier layer may prevent chemical interaction between the aluminum foil substrate and the electrode layer. An absorber layer may be formed on the substrate. In one embodiment, the absorber layer may be a non-silicon absorber layer. In another embodiment, the absorber layer may be an amorphous silicon (doped or undoped) absorber layer. Optionally, the absorber layer may be based on organic and/or inorganic materials.
대표청구항▼
1. A photovoltaic device, comprising: a substrate comprising of at least one electrically conductive aluminum foil substrate, at least one electrically conductive diffusion barrier layer, and at least one electrically conductive electrode layer above the diffusion barrier layer, wherein the diffusio
1. A photovoltaic device, comprising: a substrate comprising of at least one electrically conductive aluminum foil substrate, at least one electrically conductive diffusion barrier layer, and at least one electrically conductive electrode layer above the diffusion barrier layer, wherein the diffusion barrier layer prevents chemical interaction between the aluminum foil substrate and the at least one electrically conductive electrode layer;an absorber layer on the substrate;a plurality of vias that extending through the substrate and the absorber layer, wherein each of the vias are filled with an electrically conductive material has an electrically insulating material positioned to electrically insulate side walls of the vias. 2. The device of claim 1 wherein the absorber layer comprises a non-silicon absorber layer. 3. The device of claim 1 wherein the absorber layer comprises an amorphous silicon absorber layer. 4. The device of claim 1 wherein the absorber layer includes one or more inorganic materials from the group consisting of: titania (TiO2), nanocrystalline TiO2, zinc oxide (ZnO), copper oxide (CuO or Cu2O or CuxOy), zirconium oxide, lanthanum oxide, niobium oxide, tin oxide, indium oxide, indium tin oxide (ITO), vanadium oxide, molybdenum oxide, tungsten oxide, strontium oxide, calcium/titanium oxide, sodium titanate, potassium niobate, cadmium selenide (CdSe), cadmium suflide (CdS), copper sulfide (Cu2S), cadmium telluride (CdTe), cadmium-tellurium selenide (CdTeSe), copper-indium selenide (CuInSe2), cadmium oxide (CdOx), CuI, CuSCN, a semiconductive material, or combinations of the above. 5. The device of claim 1 wherein the absorber layer includes one or more organic materials from the group consisting of: a conjugated polymer, poly(phenylene) and derivatives thereof, poly(phenylene vinylene) poly(2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylene vinylene (MEH-PPV), poly(para-phenylene vinylene), (PPV), PPV copolymers, poly(thiophene) poly(3-octylthiophene-2,5,-diyl)-regioregular, poly(3-octylthiophene-2,5,-diyl), regiorandom, Poly(3-hexylthiophene-2,5-diyl),regioregular, poly(3-hexylthiophene-2,5-diyl)-regiorandom, poly(thienylenevinylene) and derivatives thereof, and poly(isothianaphthene) and derivatives thereof, 2,2′7,7′tetrakis(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene(spiro-Me OTAD), organometallic polymers, polymers containing perylene units, poly(squaraines) and their derivatives, and discotic liquid crystals, organic pigments or dyes, a Ruthenium-based dye, a liquid iodide/triiodide electrolyte, azo-dyes having azo chromofores (—N═N—) linking aromatic groups, phthalocyanines including metal-free phthalocyanine; (HPc), perylenes, perylene derivatives, Copper pthalocyanines (CuPc), Zinc Pthalocyanines (ZnPc), naphthalocyanines, squaraines, merocyanines and their respective derivatives, poly(silanes), poly(germinates), 2,9-Di(pent-3-yl)-anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10-tetrone, and 2,9-Bis-(1-hexyl -hept-1-yl)-anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10-tetrone and pentacene, pentacene derivatives and/or pentacene precursors, an N-type ladder polymer, poly(benzimidazobenzophenanthroline ladder) (BBL), or combinations of the above. 6. The device of claim 1 wherein the absorber layer includes one or more materials from the group consisting of: an oligimeric material, micro-crystalline silicon, inorganic nanorods dispersed in an organic matrix, inorganic tetrapods dispersed in an organic matrix, quantum dot materials, ionic conducting polymer gels, sol-gel nanocomposites containing an ionic liquid, ionic conductors, low molecular weight organic hole conductors, C60 or combinations of the above. 7. The device of claim 1 wherein the absorber layer comprises of one of the following: a nanostructured layer having an inorganic porous template with pores filled by an organic material (doped or undoped), a polymer/blend cell architecture, a micro-crystalline silicon cell architecture, or combinations of the above. 8. A photovoltaic device module comprising the device of claim 1 and further comprising: an insulator layer and a conductive back plane, wherein the insulator layer is sandwiched between the substrate and the conductive back plane;a transparent conducting layer disposed such that the absorber layer is between the substrate and the transparent conducting layer; andwherein the vias form electrical connections between the transparent conducting layer and the conductive back plane, the electrical connections being formed through the transparent conducting layer, the absorber layer, the substrate, and the insulating layer, wherein the electrical contacts are electrically isolated from the absorber layer, the substrate, and the insulating layer. 9. A photovoltaic device, comprising: a substrate comprising of at least one electrically conductive aluminum foil substrate, at least one electrically conductive diffusion barrier layer, and at least one electrically conductive back electrode layer above the diffusion barrier layer, wherein the diffusion barrier layer prevents chemical interaction between the aluminum foil substrate and the back electrode layer;an absorber layer on the substrate;an insulator layer and a conductive back plane, wherein the insulator layer is sandwiched between the substrate and the conductive back plane;a transparent conducting layer disposed such that the absorber layer is between the substrate and the transparent conducting layer; andone or more electrical contacts between the transparent conducting layer and the conductive back plane, the electrical contacts being formed through the transparent conducting layer, the absorber layer, the substrate, and the insulating layer, wherein the electrical contacts are electrically isolated from the absorber layer, the substrate, and the insulating layer. 10. The device of claim 9 wherein the absorber layer comprises a non-silicon absorber layer. 11. The device of claim 9 wherein the absorber layer comprises an amorphous silicon absorber layer. 12. The device of claim 9 wherein the absorber layer includes one or more inorganic materials from the group consisting of: titania (TiO2), nanocrystalline TiO2, zinc oxide (ZnO), copper oxide (CuO or Cu2O or CuxOy), zirconium oxide, lanthanum oxide, niobium oxide, tin oxide, indium oxide, indium tin oxide (ITO), vanadium oxide, molybdenum oxide, tungsten oxide, strontium oxide, calcium/titanium oxide, sodium titanate, potassium niobate, cadmium selenide (CdSe), cadmium suflide (CdS), copper sulfide (Cu2S), cadmium telluride (CdTe), cadmium-tellurium selenide (CdTeSe), copper-indium selenide (CuInSe2), cadmium oxide (CdOx), CuI, CuSCN, a semiconductive material, or combinations of the above. 13. The device of claim 9 wherein the absorber layer includes one or more organic materials from the group consisting of: a conjugated polymer, poly(phenylene) and derivatives thereof, poly(phenylene vinylene), poly(2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylene vinylene (MEH-PPV), poly(para-phenylene vinylene), (PPV), PPV copolymers, poly(thiophene), poly(3-octylthiophene-2,5,-diyl)-regioregular, poly(3-octylthiophene-2,5,-diyl)-regiorandom, Poly(3-hexylthiophene-2,5-diyl)-regioregular, poly(3-hexylthiophene-2,5-diyl)-regiorandom, poly(thienylenevinylene) and derivatives thereof, and poly(isothianaphthene) and derivatives thereof, 2,2′7,7′tetrakis(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene(spiro-Me OTAD), organometallic polymers, polymers containing perylene units, poly(squaraines) and their derivatives, and discotic liquid crystals, organic pigments or dyes, a Ruthenium-based dye, a liquid iodide/triiodide electrolyte, azo-dyes having azo chromofores (—N═N—) linking aromatic groups, phthalocyanines including metal-free phthalocyanine; (HPc), perylenes, perylene derivatives, Copper pthalocyanines (CuPc), Zinc Pthalocyanines (ZnPc), naphthalocyanines, squaraines, merocyanines and their respective derivatives, poly(silanes), poly(germinates), 2,9-Di(pent-3-yl)-anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10-tetrone, and 2,9-Bis-(1-hexyl -hept-1-yl)-anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10-tetrone and pentacene, pentacene derivatives and/or pentacene precursors, an N-type ladder polymer, poly(benzimidazobenzophenanthroline ladder) (BBL), or combinations of the above. 14. The device of claim 9 wherein the absorber layer includes one or more materials from the group consisting of: an oligimeric material, micro-crystalline silicon, inorganic nanorods dispersed in an organic matrix, inorganic tetrapods dispersed in an organic matrix, quantum dot materials, ionic conducting polymer gels, sol-gel nanocomposites containing an ionic liquid, ionic conductors, low molecular weight organic hole conductors, C60, or combinations of the above. 15. The device of claim 9 wherein the absorber layer comprises of one of the following: a nanostructured layer having an inorganic porous template with pores filled by an organic material (doped or undoped), a polymer/blend cell architecture, a micro-crystalline silicon cell architecture, or combinations of the above. 16. The device of claim 9 wherein the barrier layer comprises one or more of the following materials: chromium, vanadium, tungsten, tantalum nitride, tungsten nitride, titanium nitride, zirconium nitride, hafnium nitride, or silicon nitride. 17. The device of claim 9 wherein the one or more electrical contacts comprise vias each having electrically conductive material therein. 18. The device of claim 17 wherein the vias have electrically insulated side walls. 19. The device of claim 18 wherein insulating material of the electrically insulated side walls have a thickness of about 10 microns and about 200 microns. 20. The device of claim 17 wherein each of the vias is sized to be about 0.1 millimeters to about 1.5 millimeters in diameter.
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