Boosting Upconversion Photoluminescence and Multielectrical Properties via Er-Doping-Modulated Vacancy Control in Ba0.85Ca0.15Ti0.9Zr0.1O3 - Details

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Abstract：

The　lead-free　0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Ti0.8Zr0.2)O3　(BCTZ)　ceramics　with　Er　doping　have　shown　good　upconversion　photoluminescence　(PL)　and　desirable　optical　temperature　sensing　properties.　To　bridge　a　relationship　between　the　structure/intrinsic　defects　and　properties　of　rare-earth-doped　ferroelectrics,　we　designed　and　fabricated　a　series　of　BCTZ　ceramics　doped　with　1　mol　%　Er3+　by　combining　the　first-principles　calculations　and　experimental　measurements.　Theoretically,　we　discovered　that　Er　can　occupy　both　A　sites　(i.e.,　replacing　Ba　or　Ca)　and　B　sites　(i.e.,　replacing　Ti　or　Zr)　in　the　BCTZ　lattice　and　highlighted　that　the　Er-doping-induced　vacancy　concentration　decreases　for　both　the　oxygen　vacancies　(Vo)　and　cation　vacancies　(Vc).　Experimentally,　the　enhanced　PL　performance　and　the　dielectric,　ferroelectric,　and　piezoelectric　properties　of　the　Er-doped　BCTZ　ceramics　have　been　observed.　Finally,　the　physical　origin　of　Er-induced　property　enhancement　in　BCTZ　has　been　elaborated　according　to　the　charge　density　and　chemical　bonding　analysis.　These　results　open　up　a　path　to　investigate　the　effects　of　site　substitution　and　vacancies　on　optoelectronic　properties　of　multifunctional　rare-earth-doped　ferroelectrics.　©　Copyright　©　2019　American　Chemical　Society.

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[ 1 ] [Liu, C.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Wang, Q.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Wu, X.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 4 ] [Sa, B.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Sun, H.]Department of Applied Physics, Hong Kong Polytechnic University, Kowloon, Hong Kong
[ 6 ] [Luo, L.]Department of Microelectronic Science and Engineering, Ningbo University, Ningbo, 315211, China
[ 7 ] [Lin, C.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Zheng, X.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 9 ] [Lin, T.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 10 ] [Sun, Z.]School of Materials Science and Engineering, Center for Integrated Computational Materials Science, International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, China

Reprint 's Address：

[Wu, X.]Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou UniversityChina

Email：

wuxiao@fzu.edu.cn

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ACS Omega

ISSN： 2470-1343

Year： 2019

Issue： 6

Volume： 4

Page： 11004-11013

2 . 8 7

JCR@2019

3 . 7 0 0

JCR@2023

ESI HC Threshold：184

JCR Journal Grade：2

CAS Journal Grade：4

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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