Quasi‐2D Phonon Transport in Diamond Nanosheet
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2024-07-26 |
| Journal | Advanced Functional Materials |
| Authors | Yunting Zhu, Ye Tian, Hailang Wen, Rongbin Xu, Yi Zhong |
| Institutions | Xiamen University |
| Citations | 4 |
Abstract
Section titled “Abstract”Abstract Nanomaterial phonon transport is crucial for miniaturized devices and superior thermophysical properties in condensed matter physics. Diamond nanosheets, applicable in nanoelectronics/optoelectronics, offer availability to explore dimensionality’s impact on phonon transport. Raman spectroscopy is used to study the thermal conductivity (κ) of diamond nanosheets with a thickness below 100 nm. Results show a law above 140 K, highlighting Umklapp phonon scattering. Despite the reduced thickness, κ (1100‐2000 W/mK) remains higher than metals and most semiconductors, showcasing diamonds’ remarkable in‐plane heat transfer. Intriguingly, the research uncovers unique length‐dependent behavior , consistent with graphene, the two‐dimensional (2D) allotrope. This research offers insights into thermal transport in quasi‐2D nanosheets, with significant implications for nanoscale heat management and highly efficient thermal devices.