标题:Annealing effects on the structural and dielectric properties of (Nb plus In) co-doped rutile TiO2 ceramics
作者:Zhao, Lanling; Wang, Jun; Gai, Zhigang; Li, Jichao; Liu, Jian; Wang, Jiyang; Wang, Chunlei; Wang, Xiaolin
作者机构:[Zhao, Lanling; Gai, Zhigang; Li, Jichao; Liu, Jian; Wang, Chunlei] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, People 更多
通讯作者:Wang, Chunlei;Wang, CL;Wang, XL
通讯作者地址:[Wang, CL]Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China;[Wang, XL]Univ Wollongong, Inst Superconducting 更多
来源:RSC ADVANCES
出版年:2019
卷:9
期:15
页码:8364-8368
DOI:10.1039/c9ra00564a
摘要:Density functional theory calculations were conducted to investigate the electronic structures of rutile Ti16O32, Ti13Nb2InO32, and Ti13Nb2InO31 systems. High density (Nb + In) co-doped rutile TiO2 ceramics were successfully prepared by one modified solid state method. XRD, XPS, Raman scattering and FT-IR measurements were performed to investigate the structural properties of the (Nb + In) co-doped rutile TiO2 ceramics annealed in different atmospheres. The lattice parameters for the (Nb + In) co-doped rutile TiO2 ceramics were enlarged slightly after they were annealed in air and oxygen. Raman scattering results indicate that the E-g modes are quite sensitive to oxygen vacancy in comparison with the other Raman active modes. The ceramics annealed in oxygen at 873 K exhibit the best dielectric performance with giant dielectric permittivity (>14 000) and small dielectric loss (<0.2) over the frequency range from 40 Hz to 1 MHz.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063002034&doi=10.1039%2fc9ra00564a&partnerID=40&md5=264b505526e15da06b21368f32eb71ef
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