TY - JOUR
T1 - A photophysical study of PCBM thin films
AU - Cook, Steffan
AU - Ohkita, Hideo
AU - Kim, Youngkyoo
AU - Benson-Smith, Jessica J.
AU - Bradley, Donal D.C.
AU - Durrant, James R.
N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27
PY - 2007/9/13
Y1 - 2007/9/13
N2 - The photophysical properties of [6,6]-phenyl C61 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 S1 → S0 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 ∼500 nm assigned to the presence of charge transfer (CT) transitions in crystalline PCBM. The energy of the CT exciton is estimated to be ∼2.8 eV. © 2007 Elsevier B.V. All rights reserved.
AB - The photophysical properties of [6,6]-phenyl C61 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 S1 → S0 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 ∼500 nm assigned to the presence of charge transfer (CT) transitions in crystalline PCBM. The energy of the CT exciton is estimated to be ∼2.8 eV. © 2007 Elsevier B.V. All rights reserved.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0009261407010597
UR - http://www.scopus.com/inward/record.url?scp=34548453165&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2007.08.005
DO - 10.1016/j.cplett.2007.08.005
M3 - Article
SN - 0009-2614
VL - 445
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -