Effect of chromium doping on the structure and band gap of Bi3.15Nd0.85Ti3O12 thin films

被引：10
作者：
Ma, Qingqing [1 ]
Shu, Yahui [1 ]
Ding, Zhenzhong [1 ]
Cao, Lin [1 ]
Chen, Xiaoqin [1 ]
Yang, Fujun [1 ]
机构：
[1] Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Hubei Key Lab Ferro & Piezoelect Mat & Devices, Fac Phys & Elect Sci, Wuhan 430062, Hubei, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 768卷
关键词：
Bismuth neodymium titanate; Band gap; Films; Sol-gel; ELECTRICAL-PROPERTIES; BISMUTH TITANATE; BI4TI3O12; TEMPERATURE; HYDROGEN;
D O I：
10.1016/j.jallcom.2018.07.307
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The Bi3.15Nd0.85Ti3O12 (BNdT) and Cr-doped BNdT films on quartz substrates were prepared by a sol-gel process and the effects of Cr doping on the structure and band gap of BNdT were examined. Cr-doping does not change the three-layered perovskite structure of BNdT but transforms the grain morphology from equiaxed grains to rectangular grains. The utilization of visible light is increased by Cr doping and the large band gap reduction (similar to 1.1 eV) was obtained, which is analyzed from the electronegativity and the distortion caused by substitution. The present work provides an available way to make ferroelectric (FE) BNdT getting more extensively applied in the new photovoltaic cells and other novel optoelectronic devices. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：847 / 851
页数：5
相关论文
共 33 条
  • [1] Effects of Cr and Nb doping on the ferroelectricity of chemical-solution-deposited Bi3.5Nd0.5Ti3O12 films
    Chang, TL
    Lin, WT
    [J]. APPLIED SURFACE SCIENCE, 2005, 245 (1-4) : 376 - 383
  • [2] The photovoltaic spectral response regulated by band gap in Zr doped Bi4Ti3O12 thin films
    Chen, Jieyu
    Nie, Chenghong
    Bai, Yulong
    Zhao, Shifeng
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2015, 26 (08) : 5917 - 5922
  • [3] Sub-microsecond vapor plume dynamics under different keyhole penetration regimes in deep penetration laser welding
    Chen, Xin
    Pang, Shengyong
    Shao, Xinyu
    Wang, Chunming
    Zhang, Xiaosi
    Jiang, Ping
    Xiao, Jianzhong
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2017, 50 (20)
  • [4] Ferroelectric and dielectric properties of bismuth neodymium titanate ceramics prepared using sol-gel derived fine powders
    Chen, XQ
    Qi, HY
    Qi, YJ
    Lu, CJ
    [J]. PHYSICS LETTERS A, 2005, 346 (1-3) : 204 - 208
  • [5] Chromium-modified Bi4Ti3O12 photocatalyst: Application for hydrogen evolution and pollutant degradation
    Chen, Zhiwu
    Jiang, Xunyang
    Zhu, Chengbin
    Shi, Chunkai
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 199 : 241 - 251
  • [6] Switchable Ferroelectric Diode and Photovoltaic Effect in BiFeO3
    Choi, T.
    Lee, S.
    Choi, Y. J.
    Kiryukhin, V.
    Cheong, S. -W.
    [J]. SCIENCE, 2009, 324 (5923) : 63 - 66
  • [7] Band gap tuning in ferroelectric Bi4Ti3O12 by alloying with LaTMO3 (TM = Ti, V, Cr, Mn, Co, Ni, and Al)
    Choi, Woo Seok
    Lee, Ho Nyung
    [J]. APPLIED PHYSICS LETTERS, 2012, 100 (13)
  • [8] Wide bandgap tunability in complex transition metal oxides by site-specific substitution
    Choi, Woo Seok
    Chisholm, Matthew F.
    Singh, David J.
    Choi, Taekjib
    Jellison, Gerald E., Jr.
    Lee, Ho Nyung
    [J]. NATURE COMMUNICATIONS, 2012, 3
  • [9] Precision lattice constants from x-ray powder photographs
    Cohen, MU
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1935, 6 (03) : 68 - 74
  • [10] Size effect and evidence of a size-driven phase transition in Bi4Ti3O12 nanocrystals
    Du, YL
    Zhang, MS
    Chen, Q
    Yuan, ZR
    Yin, Z
    Zhang, QA
    [J]. SOLID STATE COMMUNICATIONS, 2002, 124 (03) : 113 - 118
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