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SUBSTRATE-FREE THIN-FILM FLEXIBLE PHOTOVOLTAIC DEVICE AND FABRICATION METHOD

  • US 20160204304A1
  • Filed: 01/14/2015
  • Published: 07/14/2016
  • Est. Priority Date: 01/14/2015
  • Status: Active Grant
First Claim
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1. A method for thermal exfoliation, comprising:

  • providing a target layer on a substrate to form a structure;

    depositing a stressor layer on the target layer;

    placing the structure in a temperature controlled environment to induce differential thermal expansion between the target layer and the substrate; and

    exfoliating the target layer from the substrate when a critical temperature is achieved such that the target layer is separated from the substrate to produce a standalone, thin film device.

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