Document Detail


Differential spectral responsivity measurement of photovoltaic detectors with a light-emitting-diode-based integrating sphere source.
MedLine Citation:
PMID:  21151235     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
We present an experimental realization of differential spectral responsivity measurement by using a light-emitting diode (LED)-based integrating sphere source. The spectral irradiance responsivity is measured by a Lambertian-like radiation field with a diameter of 40 mm at the peak wavelengths of the 35 selectable LEDs covering a range from 280 to 1550 nm. The systematic errors and uncertainties due to lock-in detection, spatial irradiance distribution, and reflection from the test detector are experimentally corrected or considered. In addition, we implemented a numerical procedure to correct the error due to the broad spectral bandwidth of the LEDs. The overall uncertainty of the DSR measurement is evaluated to be 2.2% (k = 2) for Si detectors. To demonstrate its application, we present the measurement results of two Si photovoltaic detectors at different bias irradiance levels up to 120 mW/cm(2).
Authors:
Ghufron Zaid; Seung-Nam Park; Seongchong Park; Dong-Hoon Lee
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  49     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6772-83     Citation Subset:  -    
Affiliation:
Science of Measurement Department, University of Science and Technology, 217 Gajung-ro, Yuseong-gu, Daejeon 305-350, South Korea.
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