Enhancement of the photoelectrochemical response of poly(terthiophenes) by CdS(ZnS) core-shell nanoparticles

被引：17
|
作者：
Santos, Marcos J. L. [1 ]
Ferreira, J. [1 ]
Radovanovic, E. [1 ]
Romano, Ricardo [2 ]
Alves, Oswaldo L. [2 ]
Girotto, Emerson M. [1 ]
机构：
[1] Univ Estadual Maringa, Dept Quim, BR-87020900 Maringa, Parana, Brazil
[2] Univ Estadual Campinas, UNICAMP, Inst Quim, BR-13083970 Campinas, SP, Brazil
来源：
THIN SOLID FILMS | 2009年 / 517卷 / 18期
关键词：
Polyterthiophene; Cadmium sulfate; Zinc sulfate; Nanoparticles; Photoelectrochemical properties; Hybrid; Scanning Electron Microscopy; PHOTOINDUCED ELECTRON-TRANSFER; CDSE QUANTUM DOTS; CHARGE SEPARATION; PHOTOLUMINESCENCE; TEMPERATURE; FILMS; NANOCRYSTALLITES; CONFINEMENT; GROWTH;
D O I：
10.1016/j.tsf.2009.03.170
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have investigated the photoelectrochemical properties of hybrid films of polythiophenes poly(4,4 '' dimethoxy-3'-methyl-2,2':5',2 '' terthiophene) (PDM), poly(4,4 '' dipentoxy-3'-methyl-2,2':5',2 '' terthiophene) (PDP), and cadmium sulfide/zinc sulfide (CdS(ZnS)) core-shell nanoparticles. Although CdS(Zns) nanoparticles present enhanced exciton trapping, light harvesting by hybrid films was enhanced when compared to those of pure PDM and PDP films. This enhancement is explained in terms of electron and hole transfer mechanisms at different excitation wavelengths. The more efficient light harvesting of PDM/CdS (ZnS) when compared to that of PDP/CdS(ZnS) was attributed to its broader absorption spectrum and more efficient electron hopping. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：5523 / 5529
页数：7
相关论文
共 50 条
  • [21] Optical Excitations in CdSe/CdS Core-Shell Nanoparticles
    Frenzel, Johannes
    Thieme, Soeren
    Seifert, Gotthard
    Joswig, Jan-Ole
    JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (21): : 10338 - 10344
  • [22] Photoelectrochemical performance of hydrogenated ZnO/CdS core-shell nanorod arrays
    Li, Hui
    Yao, Chenzhong
    Meng, Lixin
    Sun, Hong
    Huang, Jian
    Gong, Qiaojuan
    ELECTROCHIMICA ACTA, 2013, 108 : 45 - 50
  • [23] Strutural and optical approach of CdS@ZnS core-shell system
    Raubach, Cristiane W.
    de Santana, Yuri V. B.
    Ferrer, Mateus M.
    Longo, Valeria M.
    Varela, Jose A.
    Avansi, Waldir, Jr.
    Buzolin, Prescila G. C.
    Sambrano, Julio R.
    Longo, Elson
    CHEMICAL PHYSICS LETTERS, 2012, 536 : 96 - 99
  • [24] Synthesis of high quality and monodisperse CdS:Mn2+/ZnS and CdS:Mn2+/CdS core-shell nanoparticles
    Murugadoss, G.
    SUPERLATTICES AND MICROSTRUCTURES, 2012, 52 (05) : 1026 - 1042
  • [25] CdS/ZnS core-shell nanocrystal photosensitizers for visible to UV upconversion
    Gray, Victor
    Xia, Pan
    Huang, Zhiyuan
    Moses, Emily
    Fast, Alexander
    Fishman, Dmitry A.
    Vullev, Valentine I.
    Abrahamsson, Maria
    Moth-Poulsen, Kasper
    Tang, Ming Lee
    CHEMICAL SCIENCE, 2017, 8 (08) : 5488 - 5496
  • [26] FRET Enhancement in Multilayer Core-Shell Nanoparticles
    Lessard-Viger, Mathieu
    Rioux, Maxime
    Rainville, Luc
    Boudreau, Denis
    NANO LETTERS, 2009, 9 (08) : 3066 - 3071
  • [27] Synthesis and optical characterization of single phased ZnS:Mn2+/CdS core-shell nanoparticles
    Murugadoss, G.
    Ramasamy, V.
    SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2012, 93 : 70 - 74
  • [28] Plasmonic enhancement using core-shell nanoparticles
    Stranik, O
    Nooney, R
    McDonagh, C
    MacCraith, BD
    Opto-Ireland 2005: Nanotechnology and Nanophotonics, 2005, 5824 : 79 - 85
  • [29] Synthesis of ZnS:Mn2+ and ZnS:Mn2+/ZnS core-shell nanoparticles using poly(methyl methacrylate)
    Murugadoss, G.
    APPLIED NANOSCIENCE, 2013, 3 (06) : 485 - 493
  • [30] CdS-ZnS core-shell nanoparticle formation: Experiment, mechanism, and simulation
    Ethayaraja, Mani
    Ravikumar, Chettiannan
    Muthukumaran, Devarajan
    Dutta, Kanchan
    Bandyopadhyaya, Rajdip
    JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (08): : 3246 - 3252
12345