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Abay Gadisa
Researcher at North Carolina State University
Publications - 50
Citations - 5847
Abay Gadisa is an academic researcher from North Carolina State University. The author has contributed to research in topics: Polymer solar cell & Organic solar cell. The author has an hindex of 30, co-authored 49 publications receiving 5324 citations. Previous affiliations of Abay Gadisa include University of Hasselt & Linköping University.
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On the origin of the open-circuit voltage of polymer–fullerene solar cells
TL;DR: It is demonstrated that charge-transfer absorption and emission are shown to be related to each other and Voc is determined by the formation of these states in accordance with the assumptions of the detailed balance and quasi-equilibrium theory.
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Relating the open-circuit voltage to interface molecular properties of donor:acceptor bulk heterojunction solar cells
TL;DR: In this article, the open-circuit voltage of polymer:fullerene bulk heterojunction solar cells is determined by the interfacial charge transfer (CT) states between polymer and fullerene.
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The Relation Between Open‐Circuit Voltage and the Onset of Photocurrent Generation by Charge‐Transfer Absorption in Polymer : Fullerene Bulk Heterojunction Solar Cells
Koen Vandewal,Abay Gadisa,Wibren D. Oosterbaan,Sabine Bertho,Fateme Banishoeib,Ineke Van Severen,Laurence Lutsen,Laurence Lutsen,Thomas J. Cleij,Dirk Vanderzande,Dirk Vanderzande,Jean Manca,Jean Manca +12 more
TL;DR: In this paper, Fourier transform photocurrent spectroscopy (FTPS) was used to detect the low intensity charge transfer (CT) absorption bands in a range of conjugated polymer-based solar cells.
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Correlation between oxidation potential and open-circuit voltage of composite solar cells based on blends of polythiophenes/ fullerene derivative
TL;DR: The photovoltaic parameters of donor/acceptor blend organic solar cells are highly influenced by several parameters, such as the strength of the acceptor species, the morphology of the film due to...
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Electroluminescence from charge transfer states in polymer solar cells.
TL;DR: The weak but omnipresent electroluminescence from several types of organic polymer is reported and interpreted to originate from interfacial charge transfer state recombination and emphasize EL as a very valuable tool to characterize the charge transferState present in donor/acceptor organic photovoltaic (OPV) cells.