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
  • [31] Electroluminescent properties of device based on ZnS:Tb/CdS core-shell nanocrystals
    Hua, RN
    Niu, JH
    Li, MT
    Yu, TZ
    Li, WL
    CHEMICAL PHYSICS LETTERS, 2006, 419 (1-3) : 269 - 272
  • [32] Synthesis and characterization of highly luminescent CdS@ZnS core-shell nanorods
    Kim, Mee Rahn
    Kang, Young-Mee
    Jang, Du-Jeon
    JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (50): : 18507 - 18511
  • [33] Temperature Dependence of Luminescence of CdS: Mn/ZnS Core-Shell Quantum Dots
    Fang Dai-Feng
    Wang Zhong-Ping
    Dai Ru-Cheng
    Zhang Zeng-Ming
    Ding Ze-Jun
    CHINESE PHYSICS LETTERS, 2014, 31 (05)
  • [34] Photothermal Enhancement in Core-Shell Structured Plasmonic Nanoparticles
    Li, Qiang
    Zhang, Weichun
    Zhao, Ding
    Qiu, Min
    PLASMONICS, 2014, 9 (03) : 623 - 630
  • [35] Photothermal Enhancement in Core-Shell Structured Plasmonic Nanoparticles
    Qiang Li
    Weichun Zhang
    Ding Zhao
    Min Qiu
    Plasmonics, 2014, 9 : 623 - 630
  • [36] PREPARATION AND OPTICAL ABSORPTION PROPERTIES OF CDS, ZnS, ZnXCd1-XS AND CORE/SHELL CDS/ZNS NANOPARTICLES
    Praus, Petr
    Svoboda, Ladislav
    Horinkova, Petra
    NANOCON 2013, 5TH INTERNATIONAL CONFERENCE, 2014, : 243 - 247
  • [37] Synthesis of CdS, ZnS, and CdS/ZnS Core/Shell Nanocrystals Using Dodecanethiol
    Niu, Jinzhong
    Xu, Weiwei
    Shen, Huaibin
    Li, Sen
    Wang, Hongzhe
    Li, Lin Song
    BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2012, 33 (02): : 393 - 397
  • [38] Photocatalytic Reduction of CO2 Over CdS, ZnS and Core/Shell CdS/ZnS Nanoparticles Deposited on Montmorillonite
    Koci, Kamila
    Praus, Petr
    Edelmannova, Miroslava
    Ambrozova, Nela
    Troppova, Ivana
    Fridrichova, Dagmar
    Slowik, Grzegorz
    Ryczkowski, Janusz
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2017, 17 (06) : 4041 - 4047
  • [39] Studies of 2-mercaptoethanol passivated ZnS core-shell nanoparticles
    Sharma, M.
    Kumar, S.
    Pandey, O. P.
    OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2008, 2 (12): : 881 - 885
  • [40] Au@CdS Core-Shell Nanoparticles-Modified ZnO Nanowires Photoanode for Efficient Photoelectrochemical Water Splitting
    Guo, Chun Xian
    Xie, Jiale
    Yang, Hongbin
    Li, Chang Ming
    ADVANCED SCIENCE, 2015, 2 (12):
12345