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Characterisation of a LBIC system by scanning of silicon solar cells and modules
conference contribution
posted on 2009-08-10, 10:10 authored by Pongpan Vorasayan, Tom BettsTom Betts, Ralph Gottschalg, A.N. TiwariA laser beam induced current (LBIC) system
has been used as a non-destructive
characterisation tool for photovoltaic (PV)
devices. It provides a detailed twodimensional
map of the current signal. Each
data point in the map is generated by the
laser beam scanning over the devices. The
signal strength depends on the response of
that particular area on which the laser beam
is incident, thereby reflecting the absorption
and collection characteristics of that local PV
area.
However, the magnitude of the measured
signal, induced by modulated laser, is very
small. Adjustment of set parameters,
measurement variables and environmental
influences may affect the measurement
result and thus could lead to
misinterpretation. The LBIC system at the
Centre for Renewable Energy Systems
Technology (CREST) is analysed for
reliability and optimised. It is evident that
with appropriate settings under controlled
environmental conditions, the system can
provide a highly repeatable measurement
result.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Research Unit
- Centre for Renewable Energy Systems Technology (CREST)
Citation
VORASAYAN, P. ... et al, 2007. Characterisation of a LBIC system by scanning of silicon solar cells and modules. IN: Proceedings of the 3rd Photovoltaic Science Application and Technology Conference (PVSAT-3), 20-30 March 2007, Van Mildert College, Durham UniversityPublisher
PVSAT / © The authorsVersion
- AM (Accepted Manuscript)
Publication date
2007Notes
This is a conference paper.ISBN
0904963732Language
- en
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