IMR OpenIR
On-Demand Preparation of alpha-Phase-Dominated Tungsten Films for Highly Qualified Thermal Reflectors
Wang, Xiaoyu; Zang, Rui; Gao, Junhua; Liu, Chen; Wang, Lei; Gong, Wenbin; Zha, Xianhu; Chen, Xingqiu; Huang, Feng; Javaid, Kashif; Xu, Zhi; Cao, Hongtao; Rogachev, Alexander A.
2019-06-01
Source PublicationADVANCED MATERIALS INTERFACES
ISSN2196-7350
Volume6Issue:11
AbstractPhase-structure diversity affords tungsten thin films with fascinating physical/chemical properties for varied applications. However, the on-demand preparation of W films with specific phase is still an important but unmet scientific issue. In this report, an easy-to-achieve preparation recipe is implemented for addressing the phase tailoring of tungsten films. The phase transformation evolution during deposition is governed by enhanced diffusion of W adatoms and selective atomic etching on the crystal planes. It is experimentally demonstrated that the orientation relation between {210}(beta) and {110}(alpha) planes plays a vital role in coupling with the competitive growth behaviors between beta- and alpha-W. The phase-dependent electrical/optical properties of W films are experimentally observed and unambiguously figured out by theoretical simulations. Alpha-phase-dominated W films are prepared successfully under relatively tolerant conditions, demonstrating a low resistivity of approximate to 13.6 mu omega cm and a high infrared reflectance larger than 93%. Alpha-W also serves as thermal reflector to construct a solar absorber, exhibiting a low thermal emissivity of approximate to 9.8%@500 degrees C. Understanding the (alpha, beta) phase transformation mechanism means a big step forward in the development of the on-demand preparation, which allows to build a scalable platform for making W films with specific phase in a more controllable way.
Keywordfirst-principles calculation infrared reflectance phase transformation resistivity thermal reflector tungsten thin film
Indexed BySCI
Language英语
WOS IDWOS:000471079000015
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81033
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Xiaoyu,Zang, Rui,Gao, Junhua,et al. On-Demand Preparation of alpha-Phase-Dominated Tungsten Films for Highly Qualified Thermal Reflectors[J]. ADVANCED MATERIALS INTERFACES,2019,6(11).
APA Wang, Xiaoyu.,Zang, Rui.,Gao, Junhua.,Liu, Chen.,Wang, Lei.,...&Rogachev, Alexander A..(2019).On-Demand Preparation of alpha-Phase-Dominated Tungsten Films for Highly Qualified Thermal Reflectors.ADVANCED MATERIALS INTERFACES,6(11).
MLA Wang, Xiaoyu,et al."On-Demand Preparation of alpha-Phase-Dominated Tungsten Films for Highly Qualified Thermal Reflectors".ADVANCED MATERIALS INTERFACES 6.11(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xiaoyu]'s Articles
[Zang, Rui]'s Articles
[Gao, Junhua]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xiaoyu]'s Articles
[Zang, Rui]'s Articles
[Gao, Junhua]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xiaoyu]'s Articles
[Zang, Rui]'s Articles
[Gao, Junhua]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.