
TY  - JOUR
A1  - Fleming, GR 
A1  - Millar, DP 
A1  - Morris, GC 
A1  - Morris, JM 
A1  - Robinson, GW 
T1  - Exciton fission and annihilation in crystalline tetracene
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1977
VL  - 30
IS  - 11
SP  - 2353
EP  - 2359
KW  - 
UR  - https://doi.org/10.1071/CH9772353 
N2  - The time-resolved fluorescence of tetracene crystals excited by a single 7-ps pulse of 530-nm light has been measured with a streak camera/OMA system. The singlet exciton lifetime was found to be 300±30 ps at 293 K. Singlet-singlet exciton annihilation was observed, and the rate constant found to be 5 x 10-9 cm3 s-1. In order to fit the observed decay curves, an upper limit of c. 1 x 10-9 cm3 s-1 must be set on the singlet-triplet exciton annihilation rate. The measured singlet-singlet exciton annihilation rate is consistent with a hopping model for singlet exciton motion at room temperature. 
ER  -

