An Analytical Multiple-Temperature Model for Flash Laser Irradiation on Single-Layer Graphene

• Published in: Nanomaterials (Basel, Switzerland) Vol. 10; no. 7; p. 1319
• Main Authors: Bucă, Anca M., Oane, Mihai, Mihăilescu, Ion N., Mahmood, Muhammad Arif, Sava, Bogdan A., Ristoscu, Carmen
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 05-07-2020; MDPI
• Subjects: Acoustics; comparison with other theoretical models; Condensed matter physics; Experiments; Graphene; Green's functions; Heat conductivity; Irradiation; Lasers; Mathematical models; Multiple-Temperature Model; Operators (mathematics); Quantum theory; Simulation; Temperature; Thermodynamics; Zhukovsky’s approach
• ISSN: 2079-4991; 2079-4991
• DOI: 10.3390/nano10071319

A Multiple-Temperature Model is proposed to describe the flash laser irradiation of a single layer of graphene. Zhukovsky’s mathematical approach is applied to solve the Fourier heat equations based upon quantum concepts, including heat operators. Easy solutions were inferred with respect to classical mathematics. Thus, simple equations were set for the electrons and phonon temperatures in the case of flash laser treatment of a single layer of graphene. Our method avoids the difficulties and extensive time-consuming nonequilibrium green function method or quantum field theories when applied in a condensed matter. Simple expressions were deduced that could prove useful for researchers.