TY - JOUR
T1 - Phosphine oxide-functionalized polyfluorene derivatives
T2 - Synthesis, photophysics, electrochemical properties, and electroluminescence performance
AU - Guo, Zengshan
AU - Liu, Deang
AU - Wang, Cheng
AU - Pei, Jian
AU - Zhou, Zhanglin
AU - Zhao, Lihua
AU - Gibson, Gary
AU - Brug, James
AU - Lam, Sity
AU - Mao, Samuel S.
N1 - Funding Information:
This work was supported by the National Basic Research Program of China (2006CB921602 and 2009CB623601) and National Natural Science Foundation of China, and Hewlett Packard Company.
PY - 2011/4
Y1 - 2011/4
N2 - A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by 1H and 13C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq3/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).
AB - A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by 1H and 13C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq3/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).
KW - electroluminescence
KW - organic light-emitting diodes
KW - polyfluorene derivatives
UR - http://www.scopus.com/inward/record.url?scp=79954472467&partnerID=8YFLogxK
U2 - 10.1007/s11426-011-4249-3
DO - 10.1007/s11426-011-4249-3
M3 - Article
AN - SCOPUS:79954472467
SN - 1674-7291
VL - 54
SP - 678
EP - 684
JO - Science China Chemistry
JF - Science China Chemistry
IS - 4
ER -