Microstructural and photolurninescent properties of terbium-doped SiC nanotubes prepared by sputtering using electrospun polymer templates-易丝帮

Microstructural and photolurninescent properties of terbium-doped SiC nanotubes prepared by sputtering using electrospun polymer templates

2019/11/27 21:19:28 Zhou, J. Y., D. F. Song, H. Zhao, X. J. Pan, Z. X. Zhang, Y. Z. Mao, Y. J. Fu, T. Wang and E. Q. Xie

Terbium-doped SiC (SiC:Tb) nanotubes were prepared by sputtering using electrospun PVP nanofiber templates, followed by annealing in air and carbothermal reduction. Results showed that the obtained SiC:Tb nanotubes are 100-200 nm in outer diameter and 20-50 nm in wall thickness. Photoluminescence (PL) tests indicated that the as-obtained amorphous SiC:Tb nanotubes exhibited a rather low PL from the doped Tb3+ ions, but a strong self-active PL of Si-C-O defects. While the carbothermal treatments at 800 of 900 degrees C can greatly enhance the Tb-related PL, further increasing the calcination temperature to 1200 degrees C will force most of the Tb ions to separate out to the surface of the nanotubes, which is mainly, responsible for the second increase in the Tb-related PL. (C) 2014 Elsevier B.V. All rights reserved.

Journal: Journal Of Luminescence
Volume: 157
Issue:
Pages: 119-125
ISSN: 0022-2313
DOI: 10.1016/j.jlumin.2014.08.046
Year: 2015
Number:
Type:

相关推荐

暂无相关推荐

网友评论 请遵循相关法律法规，理性发言

查看更多回复

推荐视频

文献速递：南通大学徐思峻教授&葛建龙教授：防火/耐酸/耐碱芳纶/碳纳米纤维摩擦纳米发电机

Advanced Fiber Materials DOI:10.1007/s42765-023-00288-2

电纺名人录：逢甲大学特聘教授林佳弘

林佳弘，逢甲大学特聘教授、博士生导师；兼任中国医药大学教授，天津工业大学特聘教授，青岛大学客座教授，“闽江学者”讲座教授，Polymers特刊主编，及多家国际期刊审查委员。专研纤维与纺织、功能性纺织品、医疗与保健、生医与纳米、能源与环境复合材料。“Nonwoven Engineering”领域国际期刊量超过300篇，居全世界第1名学术荣誉学者；2017年入选全世界前1％科学家。

电纺名人录：东南大学代云茜教授

代云茜，东南大学教授、博士生导师。江苏省六大人才高峰入选者、江苏省科协青年托举工程入选者，担任中国复合材料学会超细纤维分会副主任委员、多家国际著名学术期刊审稿人。