TY - JOUR
T1 - The photophysics of thin polymer films of poly-(meta-phenylene-co-2,5-dioctoxy-para-phenylenevinylene)
AU - Lipson, Stephen M.
AU - Cadby, Ashley J.
AU - Lane, Paul A.
AU - O'Brien, Diarmuid F.
AU - Drury, Anna
AU - Bradley, Donald D.C.
AU - Blau, Werner J.
N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27
PY - 2001/1/1
Y1 - 2001/1/1
N2 - We have investigated the effect of film preparation procedures on the photoluminescence efficiency of the luminescent co-polymer poly-(m-phenylene-co-2,5-dioctoxy-p-phenylenevinylene) (PmPV). The photoluminescence efficiency of PmPV films improved by up to 50% when the solution was degassed by bubbling argon gas through it prior to spin casting in an inert atmosphere and baking under vacuum. Photoinduced absorption and doping measurements show that this preparation method reduces polaron photogeneration, which reduces the photoluminescence (PL) yield through exciton quenching and excited state absorption. It is proposed that this sample preparation method increases interchain separation, reducing the formation of polarons and non-radiative quenching routes, thus resulting in increased PL efficiency.
AB - We have investigated the effect of film preparation procedures on the photoluminescence efficiency of the luminescent co-polymer poly-(m-phenylene-co-2,5-dioctoxy-p-phenylenevinylene) (PmPV). The photoluminescence efficiency of PmPV films improved by up to 50% when the solution was degassed by bubbling argon gas through it prior to spin casting in an inert atmosphere and baking under vacuum. Photoinduced absorption and doping measurements show that this preparation method reduces polaron photogeneration, which reduces the photoluminescence (PL) yield through exciton quenching and excited state absorption. It is proposed that this sample preparation method increases interchain separation, reducing the formation of polarons and non-radiative quenching routes, thus resulting in increased PL efficiency.
UR - http://link.springer.com/10.1007/s007060170154
UR - http://www.scopus.com/inward/record.url?scp=57249083926&partnerID=8YFLogxK
U2 - 10.1007/s007060170154
DO - 10.1007/s007060170154
M3 - Article
VL - 132
JO - Monatshefte fur Chemie
JF - Monatshefte fur Chemie
IS - 1
ER -