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Quantitative evaluation of LBIC signals at grain boundaries

Conference · · Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)
OSTI ID:5050837

A new theory for quantitative evaluation of /sub -/light /sub -/beam /sub -/induced /sub -/currents (LBIC) at grain boundaries in polycrystalline solar cells is introduced. LBIC signals are recorded with high spatial resolution and analysed using the theory. Both the diffusion length inside the grain and the recombination velocity of the grain boundary results from the evaluation. The experimental results are in excellent agreement with theory as well as with EBIC measurements performed previously on the same sample. The advantages of the EBIC and the LBIC methods are compared.

Research Organization:
Max-Planck-Institut fur Festkorperforschung Heisenbergstr Stuttgart
OSTI ID:
5050837
Report Number(s):
CONF-840561-
Journal Information:
Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States), Journal Name: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States); ISSN CRCND
Country of Publication:
United States
Language:
English