Photo-thermal electrical resistance response of polyisoprene/nanographite composites
- Author(s)
- M. Knite, K. Ozols, A. Fuith, I. Aulika, R. Orlovs
- Abstract
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(s)
- Physics of Functional Materials
- External organisation(s)
- Riga Technical University, ELTEK Group
- Journal
- Polymer
- Volume
- 85
- Pages
- 55-60
- No. of pages
- 6
- ISSN
- 0032-3861
- DOI
- https://doi.org/10.1016/j.polymer.2016.01.031
- Publication date
- 02-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103023 Polymer physics
- Keywords
- ASJC Scopus subject areas
- Materials Chemistry, Polymers and Plastics, Organic Chemistry
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/photothermal-electrical-resistance-response-of-polyisoprenenanographite-composites(31a98499-ee35-4759-8056-002309154ea1).html