Work

Lattice thermal conductivity and phonon properties of polycrystalline graphene

Year: 2024

Type: article

Abstract: axis as function of normal frequency is found to be exponentially decaying whereas that of the phonon lifetime showed piecewise constant function behavior with respect to the frequency. We provide parameters for these distribution functions and suggest another measure of the TC based on these distributions. Finally, we perform a size-dependent analysis for two tilt angles, 21.78° and 32.20°, and find that bulk TC components decrease by around 34% to 62% in comparison to the bulk TC values of the pristine graphene. Our analysis reveals intriguing insights into the interplay between grain orientation, phonon scattering and thermal conductivity in graphene.

Source: Nanoscale Advances

DOI: 10.1039/d4na00772g

Authors: Kunwar Abhikeern, Amit Singh

Institution: Indian Institute of Technology Bombay

Language: English

Topic: Thermal properties of materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,962

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Indian Institute of Technology Bombay, Science and Engineering Research Board