Photo-thermal electrical resistance response of polyisoprene/nanographite composites

Autor(en)

M. Knite, K. Ozols, A. Fuith, I. Aulika, R. Orlovs

Abstrakt

Laser induced photo-thermal resistance response (PTRR) of polyisoprene/nanographite (PN) composites was studied. An inverse character of photoresistance in comparison to semiconductor-like materials was observed: electrical resistance of the PN composite increases when the intensity of the laser radiation is increased. The observed response can be explained by the photo-thermal effect: if the temperature of the PN composite rises because of optical radiation absorption then the electrical resistance increases due to positive temperature coefficient of the composite. Theoretical explanation of the positive temperature coefficient effect in PN composites based on tunneling-percolation model is given.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Riga Technical University, ELTEK Group

Journal

Polymer

Band

85

Seiten

55-60

Anzahl der Seiten

6

ISSN

0032-3861

DOI

https://doi.org/10.1016/j.polymer.2016.01.031

Publikationsdatum

02-2016

Peer-reviewed

Ja

ÖFOS 2012

103023 Polymerphysik

Schlagwörter

ASJC Scopus Sachgebiete

Materials Chemistry, Polymers and Plastics, Organic Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/31a98499-ee35-4759-8056-002309154ea1