Chengfang Liu, Yu Jiu, Jianyun Wang
Mar 22, 2016
Citations
0
Influential Citations
40
Citations
Journal
Macromolecules
Abstract
A three-armed star-shaped single-polymer system comprising tris(4-(3-hexyl-5-(7-(4-hexylthiophen-2-yl)benzo[c][1,2,5]thiadiazol-4-yl)thiophen-2-yl)phenyl)amine (TN) as red emissive cores, benzothiadiazole (BT) as green emissive dopants, and polyfluorene (PF) as blue arms was successfully developed, in which the construction of the star-shaped architectures can depress intermolecular interactions and concentration quenching. The thermal, photophysical, electrochemical, electroluminescent, and amplified spontaneous emission (ASE) properties of the synthesized polymers are systematically investigated. The modulation of the doping concentration of TN and BT can guarantee the partial energy transfer in a star-shaped single-polymer system, further achieving saturated white emission. Consequently, a current efficiency of 2.41 cd A–1 and Commission Internationale d’Eclairage (CIE) coordinates of (0.34, 0.35) were recorded for TN-R3G4 with 0.03 mol % red core and 0.04 mol % green dopants. The saturated white emiss...