PMID- 26490757
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160511
LR  - 20160115
IS  - 1439-7641 (Electronic)
IS  - 1439-4235 (Linking)
VI  - 16
IP  - 17
DP  - 2015 Dec 1
TI  - Differentiation between Shallow and Deep Charge Trap States on Single 
      Poly(3-hexylthiophene) Chains through Fluorescence Photon Statistics.
PG  - 3578-83
LID - 10.1002/cphc.201500719 [doi]
AB  - Blinking of the photoluminescence (PL) emitted from individual conjugated polymer 
      chains is one of the central observations made by single-molecule spectroscopy 
      (SMS). Important information, for example regarding excitation energy transfer, 
      can be extracted by evaluating dynamic quenching. However, the nature of trap 
      states, which are responsible for PL quenching, often remains obscured. We 
      present a detailed investigation of the photon statistics of single 
      poly(3-hexylthiophene) (P3HT) chains obtained by SMS. The photon statistics 
      provide a measure of the number and brightness of independently emitting areas on 
      a single chain. These observables can be followed during blinking. A decrease in 
      PL intensity is shown to be correlated with either 1) a decrease in the average 
      brightness of the emitting sites; or 2) a decrease in the number of emitting 
      regions. We attribute these phenomena to the formation of 1) shallow charge 
      traps, which can weakly affect all emitting areas of a single chain at once; and 
      2) deep traps, which have a strong effect on small regions within the single 
      chains.
CI  - (c) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
FAU - Grussmayer, Kristin S
AU  - Grussmayer KS
AD  - CellNetworks Cluster und Physikalisch-Chemisches Institut, Universitat 
      Heidelberg, Im Neuenheimer Feld 267, 69210, Heidelberg, Germany.
FAU - Steiner, Florian
AU  - Steiner F
AD  - Institut fur Experimentelle und Angewandte Physik, Universitat Regensburg, 
      Universitatsstrasse 31, 93053, Regensburg, Germany.
FAU - Lupton, John M
AU  - Lupton JM
AD  - Institut fur Experimentelle und Angewandte Physik, Universitat Regensburg, 
      Universitatsstrasse 31, 93053, Regensburg, Germany.
FAU - Herten, Dirk-Peter
AU  - Herten DP
AD  - CellNetworks Cluster und Physikalisch-Chemisches Institut, Universitat 
      Heidelberg, Im Neuenheimer Feld 267, 69210, Heidelberg, Germany. 
      dirk-peter.herten@urz.uni-hd.de.
FAU - Vogelsang, Jan
AU  - Vogelsang J
AD  - Institut fur Experimentelle und Angewandte Physik, Universitat Regensburg, 
      Universitatsstrasse 31, 93053, Regensburg, Germany. 
      jan.vogelsang@physik.uni-regensburg.de.
LA  - eng
PT  - Journal Article
DEP - 20151022
PL  - Germany
TA  - Chemphyschem
JT  - Chemphyschem : a European journal of chemical physics and physical chemistry
JID - 100954211
OTO - NOTNLM
OT  - conjugated polymers
OT  - photoluminescence
OT  - photon statistics
OT  - photophysics
OT  - single-molecule spectroscopy
EDAT- 2015/10/23 06:00
MHDA- 2015/10/23 06:01
CRDT- 2015/10/23 06:00
PHST- 2015/08/25 00:00 [received]
PHST- 2015/10/23 06:00 [entrez]
PHST- 2015/10/23 06:00 [pubmed]
PHST- 2015/10/23 06:01 [medline]
AID - 10.1002/cphc.201500719 [doi]
PST - ppublish
SO  - Chemphyschem. 2015 Dec 1;16(17):3578-83. doi: 10.1002/cphc.201500719. Epub 2015 
      Oct 22.