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Master of Engineering (M.Eng.) project reports >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25223

Title: Photo-Carrier Radiometric, Photovoltage and Electroluminiscence Lock-in Imaging of Silicon Solar Cells
Authors: Huq, Syed Rakiul
Advisor: Mandelis, Andreas
Keywords: silicon solar cells
Issue Date: 23-Nov-2010
Abstract: Photocarrier radiometric imaging (PCR) is an effective diagnostic tool to monitor the energy conversion mechanisms affecting efficiency, transport properties and recombination processes of Si solar cells. In this paper, PCR is introduced using a near-infrared (NIR) InGaAs camera and a spread superbandgap laser beam as an optoelectronic source at low modulation frequency (10Hz) or location-by-location scanning PCR imaging with a focused laser beam at high frequency (10kHz). PCR frequency scans and simultaneous modulated photovoltage (MPV) frequency scans are produced as supplementary results to PCR images and PCR images are compared to dc electroluminescence & modulated electroluminescence images to check the correlation between the results. I-V characteristics of the solar cells are produced in darkness and shunt resistance is measured using the linear portion of the I-V curve. I-V characteristic of a solar cell is also produced using a load resistance box and by irradiating the solar cell with a laser beam. It is observed and analyzed how the experimental results vary with respect to (1) mechanical defect induced on front surface of the solar cell, (2) solar cell subjected to different temperatures, (3) variation of area of the solar cell under investigation.
URI: http://hdl.handle.net/1807/25223
Appears in Collections:Master of Engineering (M.Eng.) project reports

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