USPatentGranted
B2

Photodetectors and photovoltaics based on semiconductor nanocrystals

Granted 20 Sep 2011 · 2 office actions

Life of the patent

10 dated events
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Abstract

A composite material is described. The composite material comprises semiconductor nanocrystals, and organic molecules that passivate the surfaces of the semiconductor nanocrystals. One or more properties of the organic molecules facilitate the transfer of charge between the semiconductor nanocrystals. A semiconductor material is described that comprises p-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of electrons in the semiconductor material being greater than or equal to a mobility of holes. A semiconductor material is described that comprises n-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of holes in the semiconductor material being greater than or equal to a mobility of electrons.

Claims

9 · 5 independent · depth 2
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9 granted claims

Classifications

9 codes
IPC · International Patent Classification
Section H — Electricity
  • H01L29/06
USPC · US Patent Classification
257/21257/E31.04438/82257/E31.033257/E31.036257/E51.015438/63257/40

Claim changes

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File wrapper

⤢ drag to zoomApr 2009Jul 2009Oct 2009Jan 2010Apr 2010Jul 2010Oct 2010Jan 2011Apr 2011Jul 2011Oct 2011USPTOApplicantNon-final rejectionResponse after non-finalRequest for continued examination
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Pendency
2.4 y
883 days filing → grant
Office actions
1
non-final + final
Responses
2
1 RCE
Examiner
Tu-To Ho
art unit 2818 · TC 2800
Citations: 60 back · 0 forward

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Term & fees

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Priority chain

2 priority documents
Priority
18 Apr 2008
earliest claimed
›Priority documents — 2
TypeDocumentDate
provisionalUS 6104639018 Apr 2008
related publicationUS 20100044676 A125 Feb 2010

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Citations

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