Template assisted synthesis of poly(3-hexylthiophene) nanorods and nanotubes: growth mechanism and corresponding band gap

Author:

Pourjafari Dena1,Serrano Thelma1,Kharissov Boris1,Peña Yolanda1,Gómez Idalia1

Affiliation:

1. Universidad Autónoma de Nuevo León , UANL, Facultad de Ciencias Químicas, San Nicolás de los Garza , México

Abstract

Abstract Poly(3-hexylthiophene) (P3HT) dense film and P3HT nanorods and nanotubes were synthesized on ITO and anodic aluminium oxide (AAO) substrate respectively. The growth mechanism of one-dimensional P3HT was investigated by changing the monomer concentration of 5 mM, 15 mM and 30 mM resulting in different polymer morphologies. By applying the transmittance spectra in the wavelength range of 1 100 to 400 nm, band gaps of 2.1, 1.9 and 1.55 eV were obtained for P3HT dense film, nanotubes and nanorods respectively. Tuning the band gap was achieved by changing the monomer concentration in electrochemical synthesis of P3HT on AAO substrate. Also the conductivity of 3.26 S · cm−1 for rod-shape P3HT and 1.06 S · cm−1 for dense film was calculated indicating better charge transport for nanorods.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

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