TY - JOUR
T1 - The Influence of Side-Chain Position on the Optoelectronic Properties of a Red-Emitting Conjugated Polymer
AU - Lu, Li Ping
AU - Finlayson, Christopher Edward
AU - Kabra, Dinesh
AU - Albert-Seifried, Sebastian
AU - Song, Myoung Hoon
AU - Havenith, Remco W. A.
AU - Tu, Guoli
AU - Huck, Wilhelm T. S.
AU - Friend, R.H.
N1 - Lu, L. P., Finlayson, C. E., Kabra, D., Albert-Seifried, S., Song, M. H., Havenith, R. W. A., Tu, G., Huck, W. T. S., Friend, R. H. (2013). The Influence of Side-Chain Position on the Optoelectronic Properties of a Red-Emitting Conjugated Polymer. Macromolecular Chemistry and Physics, 214 (9), 967–974.
Early View (Online Version of Record published before inclusion in an issue)
PY - 2013/5/14
Y1 - 2013/5/14
N2 - A study of the organic semiconductor F8TBT is presented, directly comparing a conventional form (F8TBT-out) with a form with varied alkyl side-chain position (F8TBT-in), in terms of optical properties and device performance in light-emitting-diodes (LEDs). Computational simulations of the side-chain position with respect to the TBT unit reveal geometrical differences between F8TBT-out and F8TBT-in. π–π conjugation on the backbone of F8TBT-in is interrupted by a distortion of the benzothiadiazole ring, leading to a blue-shift of the absorption spectrum and increased photoluminescence quantum efficiency. Both conventional and hybrid LEDs demonstrate that devices with F8TBT-in show improved performance, as compared to F8TBT-out, illustrating how tuning the optoelectronic properties of conjugated polymers by varying the placement of side chains has an important role in device optimization.
AB - A study of the organic semiconductor F8TBT is presented, directly comparing a conventional form (F8TBT-out) with a form with varied alkyl side-chain position (F8TBT-in), in terms of optical properties and device performance in light-emitting-diodes (LEDs). Computational simulations of the side-chain position with respect to the TBT unit reveal geometrical differences between F8TBT-out and F8TBT-in. π–π conjugation on the backbone of F8TBT-in is interrupted by a distortion of the benzothiadiazole ring, leading to a blue-shift of the absorption spectrum and increased photoluminescence quantum efficiency. Both conventional and hybrid LEDs demonstrate that devices with F8TBT-in show improved performance, as compared to F8TBT-out, illustrating how tuning the optoelectronic properties of conjugated polymers by varying the placement of side chains has an important role in device optimization.
KW - conjugated polymers
KW - light-emitting diodes (LEDs)
KW - organic electronics
UR - http://hdl.handle.net/2160/11248
U2 - 10.1002/macp.201200681
DO - 10.1002/macp.201200681
M3 - Article
SN - 1022-1352
VL - 214
SP - 967
EP - 974
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 9
ER -