Iron pyrite nanocrystal film as a copper-free back contact for polycrystalline CdTe thin film solar cells

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dc.contributorBhandari, Khagendra (inventor)
dc.contributorEllingson, Randy J. (inventor)
dc.contributorKhanal, Rajendra R. (inventor)
dc.contributorThe University of Toledo (assignee)
dc.date2019-07-16
dc.date.accessioned2024-05-26T13:51:47Z
dc.date.available2024-05-26T13:51:47Z
dc.descriptionThe invention discloses nanocrystalline (NC) FeS2 thin films as the back contact for CdTe solar cells. In one example, the FeS2 NC layer is prepared from a solution directly on the CdTe surface using spin-casting and chemical treatment at ambient temperature and pressure, without a thermal treatment step. Solar cells prepared by applying the NC FeS2 back contact onto CdTe yield efficiencies of about 95% to 100% that of standard Cu/Au back contact devices. In another example, FeS2 is interposed between Cu and Au to form a Cu/FeS2 NC/Au back contact configuration yielding an efficiency improvement of 5 to 9 percent higher than standard Cu/Au devices.
dc.formatapplication/pdf
dc.identifierutoledo:7465
dc.identifieriid:utpatents-US10355148
dc.identifierPatent No.: US10355148
dc.identifierAppl. No.: 15/116629
dc.identifier.urihttps://hdl.handle.net/20.500.14324/9527
dc.language.isoeng
dc.publisherUnited States Patent and Trademark Office
dc.rightsNo Copyright - United States
dc.subjectH01L31/0296
dc.subjectH01L31/02
dc.subjectH01L31/032
dc.subjectH01L31/0392
dc.subjectH01L31/073
dc.subjectH01L31/0224
dc.titleIron pyrite nanocrystal film as a copper-free back contact for polycrystalline CdTe thin film solar cells
dc.typeText
dc.typepatent

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