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Thin film photovoltaic cell

A thin-film photovoltaic cell, dielectric technology, used in photovoltaic power generation, circuits, electrical components, etc.

Inactive Publication Date: 2011-09-28
ROHM & HAAS ELECTRONICS MATERIALS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A major obstacle to the large-scale commercialization of thin-film photovoltaic cells that still exists is cost.

Method used

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  • Thin film photovoltaic cell

Examples

Experimental program
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Effect test

Embodiment 1-4

[0037] Examples 1-4: thin film photovoltaic cells

[0038]Test thin film photovoltaic cells were prepared as follows: A layer of molybdenum was sputter deposited on the surface of a glass substrate to form a back contact with an average thickness of 1 micron. A CIGS-type absorber layer with an average thickness of 2 microns was grown by co-evaporation using the National Renewable Energy Laboratory 3-stage process (eg, as described in U.S. Patent Nos. 5,441,897 and 5,436,204) ( That is, the p-type semiconductor absorber layer). Then by using 0.0015M CdSO4 solution, 1.5M NH4OH solution and 0.0075M thiourea solution at 60 °C, CdS with the average thickness described in Table 1 was deposited on the surface of the p-type semiconductor absorber layer by chemical bath deposition (CBD). layer (i.e. n-type semiconductor layer). Then using a 2.8% solution of GR 650F methylsilsesquioxane (commercially available from Technoglass, Ohio, USA) in propylene glycol methyl ether acetate (PGM...

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Abstract

A thin film photovoltaic cell is provided having a substrate; a back contact provided on the substrate; a p-type semiconductor absorber layer provided on the back contact; a n-type semiconductor layer provided on the p-type semiconductor absorber layer; a dielectric organic material layer provided on the n-type semiconductor layer; a transparent conductive film provided on the dielectric organic material layer; and, optionally, an antireflective layer provided on the transparent conductive film. Also provided is a method of manufacturing a thin film photovoltaic cell.

Description

technical field [0001] The invention relates to the field of thin film photovoltaic cells. More specifically, the present invention relates to thin film photovoltaic cell stacks and methods of making the same. Background technique [0002] Interest in thin-film photovoltaic cells has continued to rise in recent years. This heightened interest may be due to improvements in the conversion efficiency of cells fabricated on a laboratory scale, which are expected to significantly reduce production costs relative to older, more expensive crystalline and polysilicon technologies. The term "thin film" distinguishes such solar cells from more common silicon-based cells, which use thicker silicon wafers. While monocrystalline silicon cells still hold the record for conversion efficiencies in excess of 20%, currently manufactured thin-film cells are approaching that level. Therefore, the performance of thin-film batteries is no longer a major issue limiting their commercial applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/06H01L31/072H01L31/18
CPCH01L31/0322H01L31/0336Y02E10/50H01L31/02167Y02E10/541Y02P70/50H01L31/0445
Inventor G·卡纳里昂N·普利亚诺C·R·斯曼达李哉衡
Owner ROHM & HAAS ELECTRONICS MATERIALS LLC