Photoluminescence behavior of TiO2 nanoparticles doped with liquid crystals

被引：21
作者：
Roy, J. S. [1 ]
Majumder, T. Pal [1 ]
Dabrowski, R. [2 ]
机构：
[1] Univ Kalyani, Dept Phys, Kalyani 741235, W Bengal, India
[2] Mil Univ Technol, Inst Chem, PL-00908 Warsaw, Poland
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2015年 / 1098卷
关键词：
TiO2; nanoparticles; Liquid crystals; Photoluminescence; Red shifted PL emission band; ABSORPTION; NANOWIRES;
D O I：
10.1016/j.molstruc.2015.06.028
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：
Well crystalline TiO2 nanoparticles (NPs) have been prepared by simply hydrothermal method and their photoluminescence (PL) behavior in presence liquid crystalline materials have been investigated. It is observed that the PL emission intensity in TiO2 NPs doped with liquid crystals (LC) enhances and the enhancement in PL intensity strongly depends on concentration of LC. The PL emission energy band of TiO2 NPs doped with LC is red shifted. The PL emission peak is shifted towards longer wavelength by 4.7 nm due to presence of LC. It is also observed that the photoluminescence emission band width of TiO2 NPs increases in presence LC molecules. Our observation may be useful to fabricate smart optoelectronics devices like solid state lighting. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：351 / 354
页数：4
相关论文
共 31 条
  • [1] Sensing mechanism of a carbon monoxide sensor based on anatase titania
    Akbar, SA
    Younkman, LB
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (05) : 1750 - 1753
  • [2] Photoinduced reactivity of titanium dioxide
    Carp, O
    Huisman, CL
    Reller, A
    [J]. PROGRESS IN SOLID STATE CHEMISTRY, 2004, 32 (1-2) : 33 - 177
  • [3] The structure and photoluminescence properties of ZnO nanobelts prepared by a thermal evaporation process
    Chen, S. J.
    Wang, G. R.
    Liu, Y. C.
    [J]. JOURNAL OF LUMINESCENCE, 2009, 129 (04) : 340 - 343
  • [4] Tailoring luminescence properties of TiO2 nanoparticles by Mn doping
    Choudhury, B.
    Choudhury, A.
    [J]. JOURNAL OF LUMINESCENCE, 2013, 136 : 339 - 346
  • [5] DAVID B, 2000, J PHYS CHEM B, V104, P9836
  • [6] Mesoscopic solar cells for electricity and hydrogen production from sunlight
    Grätzel, M
    [J]. CHEMISTRY LETTERS, 2005, 34 (01) : 8 - 13
  • [7] TiO2 HOLLOW SPHERES: ONE-POT SYNTHESIS AND ENHANCED PHOTOCATALYSIS
    Jia, Changchao
    Cao, Yongqiang
    Yang, Ping
    [J]. FUNCTIONAL MATERIALS LETTERS, 2013, 6 (03)
  • [8] Surfactant-assisted elimination of a high energy facet as a means of controlling the shapes of TiO2 nanocrystals
    Jun, YW
    Casula, MF
    Sim, JH
    Kim, SY
    Cheon, J
    Alivisatos, AP
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (51) : 15981 - 15985
  • [9] Memory effect in cadmium telluride quantum dots doped ferroelectric liquid crystals
    Kumar, A.
    Prakash, J.
    Khan, Mohd Taukeer
    Dhawan, S. K.
    Biradar, A. M.
    [J]. APPLIED PHYSICS LETTERS, 2010, 97 (16)
  • [10] A HIGH EFFICIENCY DYE-SENSITIZED SOLAR CELL WITH NANO-TiO2 SECONDARY STRUCTURE IN THE PHOTOANODE
    Lan, Zhang
    Wu, Jihuai
    Lin, Jianming
    Huang, Miaoliang
    [J]. FUNCTIONAL MATERIALS LETTERS, 2013, 6 (02)
1234