dc.contributor.author |
Xiao, Peng |
dc.contributor.author |
Chávez Ángel, Emigdio |
dc.contributor.author |
Chaitoglou, Stefanos |
dc.contributor.author |
Sledzinska, Marianna |
dc.contributor.author |
Dimoulas, Athanasios |
dc.contributor.author |
Sotomayor Torres, Clivia M. |
dc.contributor.author |
Sachat, Alexandros el |
dc.date |
2021 |
dc.date.accessioned |
2022-12-13T11:18:20Z |
dc.date.available |
2022-12-13T11:18:20Z |
dc.date.issued |
2022-12-13 |
dc.identifier |
https://ddd.uab.cat/record/268431 |
dc.identifier |
urn:10.1021/acs.nanolett.1c03018 |
dc.identifier |
urn:oai:ddd.uab.cat:268431 |
dc.identifier |
urn:scopus_id:85118856481 |
dc.identifier |
urn:articleid:15306992v21n21p9172 |
dc.identifier |
urn:icn2uab:6542330 |
dc.identifier.uri |
http://hdl.handle.net/2072/529395 |
dc.format |
application/pdf |
dc.language |
eng |
dc.publisher |
|
dc.relation |
European Commission 754558 |
dc.relation |
European Commission 289061 |
dc.relation |
Agencia Estatal de Investigación SEV-2017-0706 |
dc.relation |
Ministerio de Ciencia e Innovación PGC2018-101743-B-I00 |
dc.relation |
Nano letters ; Vol. 21, issue 21 (Nov. 2021), p. 9172-9179 |
dc.rights |
open access |
dc.rights |
Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
dc.rights |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.subject |
Phonon transport |
dc.subject |
Mean free path |
dc.subject |
SnSe2 |
dc.subject |
Thermal conductivity anisotropy |
dc.subject |
Frequency-domain thermoreflectance |
dc.subject |
Raman thermometry |
dc.title |
Anisotropic thermal conductivity of crystalline layered SnSe2 |
dc.type |
Article |
dc.description.abstract |
Altres ajuts: this work has been supported by the CERCA Programme/Generalitat de Catalunya. |
dc.description.abstract |
The degree of thermal anisotropy affects critically key device-relevant properties of layered two-dimensional materials. Here, we systematically study the in-plane and cross-plane thermal conductivity of crystalline SnSe2 films of varying thickness (16-190 nm) and uncover a thickness-independent thermal conductivity anisotropy ratio of about ∼8.4. Experimental data obtained using Raman thermometry and frequency domain thermoreflectance showed that the in-plane and cross-plane thermal conductivities monotonically decrease by a factor of 2.5 with decreasing film thickness compared to the bulk values. Moreover, we find that the temperature-dependence of the in-plane component gradually decreases as the film becomes thinner, and in the range from 300 to 473 K it drops by more than a factor of 2. Using the mean free path reconstruction method, we found that phonons with MFP ranging from ∼1 to 53 and from 1 to 30 nm contribute to 50% of the total in-plane and cross-plane thermal conductivity, respectively. |