H
H. Wynberg
Researcher at Duke University
Publications - 11
Citations - 952
H. Wynberg is an academic researcher from Duke University. The author has contributed to research in topics: Band gap & Methacrylate. The author has an hindex of 6, co-authored 11 publications receiving 928 citations.
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Alternate donor-acceptor small-band-gap semiconducting polymers; Polysquaraines and polycroconaines
TL;DR: In this article, the idea that conjugated polymers with alternate donor and acceptor moieties in the main chain are characterized by a small band gap is explained and explained.
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A new class of small band gap organic polymer conductors
TL;DR: In this paper, the authors synthesize polysquaraines and polycroconaines with a small band gap, down to 0.5 eV. The small gap arises from the regular alternation of strong donor and acceptor-like moieties in a conjugated backbone.
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Saturation of the hyperpolarizability of oligothiophenes
TL;DR: It is reported that conformational effects play a role in the observation of saturation with chain length of the second hyperpolarizability of a series of long, well-defined, conjugated oligothiophenes.
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Water-soluble polysquaraines and polycroconaines
TL;DR: In this paper, the synthesis, characterization and several properties of water-soluble polysquaraine and polycroconaine are presented, and the optical band gap of a film of the poly croconaine 4 amounts to 0.7 eV, equal to the photoconductivity band-gap.
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Colourless nonlinear optical D-π-A polymers with sulphones as electron acceptors
S. Nijhuis,Gerardus Ladislaus Johannes Andreas Rikken,E.E. Havinga,W. Ten Hoeve,H. Wynberg,E. W. Meijer +5 more
TL;DR: In this paper, colourless side-chain methacrylate copolymers exhibiting relatively narrow charge transfer bands at 335 nm and second-order optical nonlinearities up to d33= 4.3 pm V−1 (at 1064 nm) have been synthesized and characterized.