Invention Grant
- Patent Title: Photovoltaic device
- Patent Title (中): 光伏装置
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Application No.: US12078315Application Date: 2008-03-28
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Publication No.: US07868247B2Publication Date: 2011-01-11
- Inventor: Carsten Rohr , Keith W. J. Barnham , Nicholas Ekins-Daukes , James P. Connolly , Ian M. Ballard , Massimo Mazzer
- Applicant: Carsten Rohr , Keith W. J. Barnham , Nicholas Ekins-Daukes , James P. Connolly , Ian M. Ballard , Massimo Mazzer
- Applicant Address: GB London
- Assignee: Imperial Innovations Ltd.
- Current Assignee: Imperial Innovations Ltd.
- Current Assignee Address: GB London
- Agency: Foley & Lardner LLP
- Priority: GB0118150.2 20010725
- Main IPC: H01L31/00
- IPC: H01L31/00

Abstract:
A method of forming a photovoltaic device includes a plurality of quantum wells and a plurality of barriers. The quantum wells and barriers are disposed on an underlying layer. The barriers alternate with the quantum wells. One of the plurality of quantum wells and the plurality of barriers is comprised of tensile strained layers and the other of the plurality of quantum wells and the plurality of barriers is comprised of compressively strained layers. The tensile and compressively strained layers have elastic properties. The method includes selecting compositions and thicknesses of the barriers and quantum wells taking into account the elastic properties such that each period of one tensile strained layer and one compressively strained layer exerts substantially no shear force on a neighboring structure; providing the underlying layer; and forming the quantum sells and barriers on the underlying layer according to the derived compositions and thicknesses.
Public/Granted literature
- US20080251118A1 Photovoltaic device Public/Granted day:2008-10-16
Information query
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