TY - GEN
T1 - Effects of aggregation on the emission of PPV oligomers
AU - Sherwood, G. A.
AU - Cheng, R.
AU - Smith, T. M.
AU - Wildeman, J.
AU - Yaron, D. J.
AU - Peteanu, L. A.
PY - 2007
Y1 - 2007
N2 - Chain aggregation in electroluminescent polymers such as MEH-PPV has a profound effect on their emission and charge transport characteristics. However, detailed study of the spectroscopic effects of aggregation is hampered by the lack of structure in the electronic spectrum. Here we present studies of aggregates of shorter-chain oligomers of MEH-PPV that exhibit highly structured emission both at the bulk and single aggregate level. Trends are seen in the emission intensity and Franck-Condon structure as a function of chain length and are modeled to obtain an understanding of the inter-molecular interactions in the aggregate species.
AB - Chain aggregation in electroluminescent polymers such as MEH-PPV has a profound effect on their emission and charge transport characteristics. However, detailed study of the spectroscopic effects of aggregation is hampered by the lack of structure in the electronic spectrum. Here we present studies of aggregates of shorter-chain oligomers of MEH-PPV that exhibit highly structured emission both at the bulk and single aggregate level. Trends are seen in the emission intensity and Franck-Condon structure as a function of chain length and are modeled to obtain an understanding of the inter-molecular interactions in the aggregate species.
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U2 - 10.1364/ls.2007.ltul4
DO - 10.1364/ls.2007.ltul4
M3 - Conference contribution
AN - SCOPUS:85086494644
SN - 1557528462
SN - 9781557528469
T3 - Optics InfoBase Conference Papers
BT - Laser Science, LS 2007
T2 - Laser Science, LS 2007
Y2 - 16 September 2007 through 16 September 2007
ER -