A photophysical study of PCBM thin films

被引：156
作者：
Cook, Steffan
Ohkita, Hideo
Kim, Youngkyoo
Benson-Smith, Jessica J.
Bradley, Donal D. C.
Durrant, James R.
机构：
[1] Imperial Coll London, Dept Chem, London SW7 2AZ, England
[2] Kyoto Univ, Grad Sch Engn, Dept Polymer Chem, Kyoto 6068501, Japan
[3] Imperial Coll London, Dept Phys, London SW72BW, England
[4] Kyungpook Natl Univ, Dept Chem Engn, Organ Nanoelect Lab, Taegu 702701, South Korea
来源：
CHEMICAL PHYSICS LETTERS | 2007年 / 445卷 / 4-6期
基金：
英国工程与自然科学研究理事会; 日本学术振兴会;
关键词：
D O I：
10.1016/j.cplett.2007.08.005
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 photophysical properties of [6,6]-phenyl C-61 butyric acid methyl ester (PCBM) are found to differ depending on its concentration in thin films. A film of dispersed PCBM molecules in polystyrene (PS) showed only weak absorption in the visible region (400-700 nm) with a single S-1 -> S-0 emission band at around 700 nm. By comparison, a film of pristine PCBM showed heightened absorption in the visible region and the presence of an additional higher energy emission at similar to 500 nm assigned to the presence of charge transfer (CT) transitions in crystalline PCBM. The energy of the CT exciton is estimated to be similar to 2.8 eV. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：276 / 280
页数：5
相关论文
共 27 条
  • [1] Bensasson RV, 1998, CHEM-EUR J, V4, P270, DOI 10.1002/(SICI)1521-3765(19980210)4:2<270::AID-CHEM270>3.0.CO
  • [2] 2-5
  • [3] Singlet exciton transfer and fullerene triplet formation in polymer-fullerene blend films
    Cook, Steffan
    Ohkita, Hideo
    Durrant, James R.
    Kim, Youngkyoo
    Benson-Smith, Jessica J.
    Nelson, Jenny
    Bradley, Donal D. C.
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (10)
  • [4] Laser flash photolysis study on photophysical and photochemical properties of C60 fine particles
    Fujitsuka, M
    Kasai, H
    Masuhara, A
    Okada, S
    Oikawa, H
    Nakanishi, H
    Ito, O
    Yase, K
    [J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2000, 133 (1-2) : 45 - 50
  • [5] Charge separation versus recombination in dye-sensitized nanocrystalline solar cells: the minimization of kinetic redundancy
    Haque, SA
    Palomares, E
    Cho, BM
    Green, ANM
    Hirata, N
    Klug, DR
    Durrant, JR
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (10) : 3456 - 3462
  • [6] Nano-crystalline fullerene phases in polymer/fullerene bulk-heterojunction solar cells:: A transmission electron Microscopy study
    Hoppe, H
    Drees, A
    Schwinger, W
    Schäffler, F
    Sariciftci, NS
    [J]. SYNTHETIC METALS, 2005, 152 (1-3) : 117 - 120
  • [7] Observation of triplet state of charge-transfer excitons in C60 thin film
    Ichida, M
    Nakamura, A
    Shinohara, H
    Saitoh, Y
    [J]. CHEMICAL PHYSICS LETTERS, 1998, 289 (5-6) : 579 - 585
  • [8] Involvement of C-60 fullerene monomers and aggregates in the photoconductivity of ultrathin bilayer lipid membranes
    Janot, JM
    Seta, P
    Bensasson, RV
    Leach, S
    [J]. SYNTHETIC METALS, 1996, 77 (1-3) : 103 - 106
  • [9] Dissipative dynamics of spin-dependent electron-hole capture in conjugated polymers
    Karabunarliev, S
    Bittner, ER
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (07) : 3988 - 3995
  • [10] Disorder/order phase transition in C60 thin films studied by surface photovoltage spectroscopy
    Katz, EA
    Faiman, D
    Mishori, B
    Shapira, Y
    Isakina, A
    Strzhemechny, MA
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 94 (11) : 7173 - 7177
123