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5 papers
Multi-phase semicrystalline microstructures drive exciton dissociation in neat plastic semiconductors
Francis Paquin, Jonathan Rivnay, Alberto Salleo +2
The optoelectronic properties of macromolecular semiconductors depend fundamentally on their solid-state microstructure. For example, the molecular-weight distribution influences p…
Two-dimensional spatial coherence of excitons in semicrystalline polymeric semiconductors: The effect of molecular weight
Francis Paquin, Hajime Yamagata, Nicholas J. Hestand +8
The electronic properties of macromolecular semiconductor thin films depend profoundly on their solid-state microstructure, which in turn is governed, among other things, by the pr…
Investigation of the Solvent-Dependent Photoluminescence Lineshapes in 2,2'-Bithienyl-Substituted 4H-1,2,6- Thiadiazin-4-one
Soulianna Kasiouli, Eleni Theodorou, Christalla Kyriakou +4
The solvent dependence of 3,5-bis[(2,2'-bithien)-5-yl]-4H-1,2,6-thiadiazin-4-one BBT is investigated via absorption and photoluminescence spectroscopies. Large differences are obse…
Charge separation by photoexcitation in semicrystalline polymeric semiconductors: An intrinsic or extrinsic mechanism?
Francis Paquin, Gianluca Latini, Maciej Sakowicz +5
We probe charge photogeneration and subsequent recombination dynamics in neat regioregular poly(3-hexylthiophene) films over six decades in time by means of time-resolved photolumi…
Background-free quasi-steady-state photoinduced absorption spectroscopy by dual optical modulation
Houssem Kallel, Gianluca Latini, Francis Paquin +3
We present a simple and inexpensive means to measure background-free photoinduced absorption spectra by implementing a dual optical modulation scheme. Our objective is to measure q…