Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride
Abstract
Thermal management of electronics requires materials that can efficiently remove heat. Several promising materials have been found recently, but diamond remains the bulk material with the highest thermal conductivity. Chen et al. found that isotopically pure cubic boron nitride has an ultrahigh thermal conductivity, 75% that of diamond. Using only boron-11 or boron-10 allows the crystal vibrations that carry heat to move more efficiently through the material. This property could be exploited for better regulating the temperature of high-power devices.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 31, 2020
- Source ID
- 10.1126/science.aaz6149
Entities
People
- Aaron J Schmidt
- Akash Rai
- Bai Song
- Bing Lv
- David Broido
- David Cahill
- Fei Tian
- Gang Chen
- Geethal Amila Gamage Udalamatta Gamage
- Hanlin Wu
- Haoran Sun
- Hwijong Lee
- Ke Chen
- Kenji Watanabe
- Li Shi
- Navaneetha K. Ravichandran
- Pawan Koirala
- Qichen Song
- Qiye Zheng
- Sheng Li
- Takashi Taniguchi
- Xi Chen
- Zhifeng Ren
- Zhiwei Ding
Organizations
- Boston College
- Japan Society for the Promotion of Science
- Massachusetts Institute of Technology
- National Institute for Materials Science
- National Science Foundation
- Office of Naval Research
- University of Houston
- University of Illinois Urbana–Champaign
- University of Texas at Austin
- University of Texas at Dallas