We report progress on the development of an advanced four‐subcell IMM CPV solar cell that is designed for extremely high conversion efficiency under realistic concentrator operating conditions. Practical considerations allowing the design to mitigate problems related to Al‐containing alloys, lattice mismatch, non‐ideal short‐wavelength response, and reflection losses are described. Performance modeling is used to guide the choice of optimal subcell band gaps for the new IMM cell. Early experimental efforts to develop and implement the new design are described and discussed. Copyright © 2015 John Wiley & Sons, Ltd. We report progress on the development of an advanced four‐subcell IMM CPV solar cell that is designed for extremely high conversion efficiency under realistic concentrator operating conditions. Practical considerations allowing the design to mitigate problems related to Al‐containing alloys, lattice mismatch, non‐ideal short‐wavelength response, and reflection losses are described. Performance modeling is used to guide the choice of optimal subcell band gaps for the new IMMcell. Early experimental efforts to develop and implement the new design are described and discussed.


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    Title :

    Progress toward an advanced four‐subcell inverted metamorphic multi‐junction (IMM) solar cell



    Published in:

    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    53.36 Energiedirektumwandler, elektrische Energiespeicher