文献类型：期刊文献

英文题名：Thermally Conductive, Electrical Insulating, Optically Transparent Bi-Layer Nanopaper

作者：Zhou, Lihui[1,2];Yang, Zhi[3];Luo, Wei[2,3];Han, Xiaogang[2];Jang, Soo-Hwan[2];Dai, Jiaqi[2];Yang, Bao[3];Hu, Liangbing[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA;[3]Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

年份：2016

卷号：8

期号：42

起止页码：28838

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20164502989877);WOS:【SCI-EXPANDED(收录号:WOS:000386540300066)】；

基金：The project was funded by the Office of Naval Research under grant N000141410721. The authors acknowledge the support of the Maryland Nanocenter and its Fablab, Nisplab, and surface analysis center. The project was also funded by the China Scholarship Council (CSC).

语种：英文

外文关键词：cellulose nanopaper; optically transparent; thermally conductive; electronically insulating; bilayer design; solvent exfoliation

摘要：Cellulose nanofiber (CNF) from abundant and renewable wood is an emerging material with excellent mechanical, chemical, and optical properties. Transparent nanopaper made of CNF (CNF-nanopaper) could potentially replace plastics in electronics due to its excellent optical transparency, mechanical strength, and biodegradability. However, CNF-nanopaper normally has a low thermal conductivity and poor stability in increasing temperatures, which is not suitable for long-term stability and reliability in devices. Herein, for the first time, we report a thermally conductive, electrically insulating, and optically transparent nanopaper using a bilayer design where a thin layer of boron nitride (BN) nanosheets were coated on the CNF-nanopaper. An optical transparency (70%) and a thermal conductivity (0.76 W/m/K) were successfully achieved through a solution-based process at room temperature. Such an optically transparent, electrically insulating, and thermally conductive bilayer nanopaper can find applications in a range of electronic devices.