Invention Grant
- Patent Title: Method and system for testing indirect bandgap semiconductor devices using luminescence imaging
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Application No.: US15292321Application Date: 2016-10-13
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Publication No.: US09912291B2Publication Date: 2018-03-06
- Inventor: Thorsten Trupke , Robert Andrew Bardos
- Applicant: BT Imaging Pty Ltd
- Applicant Address: AU Sydney, NSW
- Assignee: BT IMAGING PTY LTD
- Current Assignee: BT IMAGING PTY LTD
- Current Assignee Address: AU Sydney, NSW
- Agency: Mattingly & Malur, PC
- Priority: AU2006902366 20060505
- Main IPC: G06K9/00
- IPC: G06K9/00 ; H02S50/15 ; G01N21/64 ; G01N21/66 ; G01N21/956 ; G01N21/95 ; H01L31/0224

Abstract:
Embodiments of methods and systems for identifying or determining spatially resolved properties in indirect bandgap semiconductor devices such as solar cells are described. In one embodiment, spatially resolved properties of an indirect bandgap semiconductor device are determined by externally exciting the indirect bandgap semiconductor device to cause the indirect bandgap semiconductor device to emit luminescence (110), capturing images of luminescence emitted from the indirect bandgap semiconductor device in response to the external excitation (120), and determining spatially resolved properties of the indirect bandgap semiconductor device based on a comparison of relative intensities of regions in one or more of the luminescence images (130).
Public/Granted literature
- US20170033736A1 METHOD AND SYSTEM FOR TESTING INDIRECT BANDGAP SEMICONDUCTOR DEVICES USING LUMINESCENCE IMAGING Public/Granted day:2017-02-02
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