Journal
2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
Volume -, Issue -, Pages 634-636Publisher
IEEE
DOI: 10.1109/pvsc40753.2019.8980878
Keywords
charge carrier lifetime; charge carrier mobility; radiative recombination; photovoltaic cells; light trapping
Funding
- French Government [ANR-IEED-002-01/ANRT Cifre 2016/09670]
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In this work, we characterize lateral transport efficiency by generating a point pulsed optical excitation and observing diffusion profiles via luminescence imaging. Spectrally-resolved images allow us to underline the waveguided propagation of the low energy PL photons. Time-resolved images are processed with the continuity equation accounting for photon recycling. Precise values for the diffusion coefficient, the recombination lifetime and the radiative coefficient are derived.
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