References of "Bissig, Benjamin"
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See detailHow band tail recombination influences the open-circuit voltage of solar cells.
Wolter, Max UL; Carron, Romain; Avancini, Enrico et al

in Progress in Photovoltaics (2021)

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See detailBulk and surface recombination properties in thin film semiconductors with different surface treatments from timeresolved photoluminescence measurements
Weiss, Thomas UL; Bissig, Benjamin; Feurer, Thomas et al

in Scientific Reports (2019), 9

The knowledge of minority carrier lifetime of a semiconductor is important for the assessment of its quality and design of electronic devices. Time-resolved photoluminescence (TRPL) measurements offer the ... [more ▼]

The knowledge of minority carrier lifetime of a semiconductor is important for the assessment of its quality and design of electronic devices. Time-resolved photoluminescence (TRPL) measurements offer the possibility to extract effective lifetimes in the nanosecond range. However, it is difficult to discriminate between surface and bulk recombination and consequently the bulk properties of the semiconductor cannot be estimated reliably. Here we present an approach to constrain systematically the bulk and surface recombination parameters in semiconducting layers and reduces to finding the roots of a mathematical function. This method disentangles the bulk and surface recombination based on TRPL decay times of samples with different surface preparations. The technique is exemplarily applied to a CuInSe2 and a back-graded Cu(In,Ga)Se2 compound semiconductor, and upper and lower bounds for the recombination parameters and the mobility are obtained. Sets of calculated parameters are extracted and used as input for simulations of photoluminescence transients, yielding a good match to experimental data and validating the effectiveness of the methodology. A script for the simulation of TRPL transients is provided. [less ▲]

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See detailInfluence of Sodium and Rubidium Postdeposition Treatment on the Quasi-Fermi Level Splitting of Cu(In,Ga)Se2 Thin Films
Wolter, Max UL; Bissig, Benjamin; Avancini, Enrico et al

in IEEE Journal of Photovoltaics (2018)

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See detailCorrecting for interference effects in the photoluminescence of Cu(In,Ga)Se2 thin films
Wolter, Max UL; Bissig, Benjamin; Reinhard, Patrick et al

in Physica Status Solidi C. Current Topics in Solid State Physics (2017), 14, no 6

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