abstract
We report measurements of the molecular first hyperpolarizability, thermal stability, photophysical, piezoelectric, and ferroelectric properties of a benzothiazole derivative bearing an arylthiophene pi-conjugated bridge both in solution and when embedded into a poly (l-lactic acid) matrix in the form of electrospun fibers with an average diameter of roughly 500 nm. The embedded nanocrystalline phenylthienyl-benzothiazole with crystal sizes of about 1.4 nm resulted in a good piezoelectric response from these functionalized electrospun fibers, indicative of a polar crystalline structure.
keywords
HETEROCYCLIC AZO DYES; QUADRATIC HYPERPOLARIZABILITIES; ELECTROLUMINESCENT DEVICES; 2-PHOTON ABSORPTION; ACCEPTOR GROUPS; ALIGNED ARRAYS; CHROMOPHORES; DESIGN; COMPLEXES; EFFICIENT
subject category
Chemistry; Science & Technology - Other Topics; Materials Science
authors
Baptista, RMF; Isakov, D; Raposo, MMM; Belsley, M; Bdikin, I; Kholkin, AL; Costa, SPG; Gomes, ED
our authors
Andrei Kholkin
Retired Researcheracknowledgements
The authors wish to thank the Fundacao para a Ciencia e Tecnologia (FCT, Portugal) and FEDER-COMPETE for financial support through the Centro de Quimica and Centro de Fisica - Universidade do Minho, Projects PTDC/CTM/105597/2008 (FCOMP-01-0124-FEDER-009457), PEst-C/QUI/UI0686/2013 (FCOMP-01-0124-FEDER-037302), and a post-doctoral Grant to R. M. F. Batista (SFRH/BPD/79333/2011). The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network and was purchased within the framework of the National Program for Scientific Re-equipment, contract REDE/1517/RMN/2005 with funds from POCI 2010 (FEDER) and FCT.