@article{57068f4787704dacbc08dc440223dd12,
title = "Direct Synthesis of Large-Scale WTe2 Thin Films with Low Thermal Conductivity",
abstract = "Large-scale, polycrystalline WTe2 thin films are synthesized by atmospheric chemical vapor reaction of W metal films with Te vapor catalyzed by H2Te intermediates, paving a way to understanding the synthesis mechanism for low bonding energy tellurides and toward synthesis of single-crystalline telluride nanoflakes. Through-plane and in-plane thermal conductivities of single-crystal WTe2 flakes and polycrystalline WTe2 thin films are measured for the first time. Nanoscale grains and disorder in WTe2 thin films suppress the in-plane thermal conductivity of WTe2 greatly, which is at least 7.5 times lower than that of the single-crystalline flakes.",
keywords = "WTe, chemical vapor deposition, intermediate HTe, nanostructure engineering, thermal conductivity",
author = "Yu Zhou and Hyejin Jang and Woods, {John M.} and Yujun Xie and Piranavan Kumaravadivel and Pan, {Grace A.} and Jingbei Liu and Yanhui Liu and Cahill, {David G.} and Cha, {Judy J.}",
note = "Funding Information: Y. Z. was supported by NSF DMR 1402600. J. M. W. was supported by NSF EFMA 1542815. The Microscopy facilities were supported by the Yale Institute for Nanoscience and Quantum Engineering (YINQE), the Yale West Campus Materials Characterization Core (MCC), and MRSEC DMR 1119826. Raman characterization was conducted at the Energy Science Institute and the Yale Institute for the Preservation of Cultural Heritage. The authors acknowledge the insightful suggestions and comments from Dr. W. Liu and Prof. H. L. Wang at Energy Sciences Institute of Yale University. Thermal conductivity measurements and analysis at University of Illinois were supported by NSF EFRI 1433467. All figures were exchanged for their color versions on February 23, 2017, after initial online publication. Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2017",
month = feb,
day = "23",
doi = "10.1002/adfm.201605928",
language = "English (US)",
volume = "27",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "Wiley-VCH",
number = "8",
}