Polylactide‐perylene derivative for blue biodegradable organic light‐emitting diodes
Al‐Attar, Hameed; Alwattar, Aula A.; Haddad, Athir; Abdullah, Bassil A.; Quayle, Peter; Yeates, Stephen G.
Aula A. Alwattar
Bassil A. Abdullah
Stephen G. Yeates
In this work we demonstrate, for the first time, the use of polylactic acid (PLA) as a biodegradable host matrix for the construction of the active emissive layer of organic light‐emitting diode (OLED) devices for potential use in bioelectronics. In this preliminary study, we report a robust synthesis of two fluorescent PLA derivatives, pyrene‐PLA (AH10 ) and perylene‐PLA (AH11 ). These materials were prepared by the ring opening polymerisation of l ‐lactide with hydroxyalkyl‐pyrene and hydroxyalkyl‐perylene derivatives using 1,8‐diazabicyclo[5.4.0]undec‐7‐ene as catalyst. OLEDs were fabricated from these materials using a simple device architecture involving a solution‐processed single‐emitting layer in the configuration ITO/PEDOT:PSS/PVK:OXD‐7 (35%):AH10 or AH11 (20%)/TPBi/LiF/Al (ITO, indium tin oxide; PEDOT:PSS, poly(3,4‐ethylenedioxythiophene) doped with poly(styrenesulfonic acid); PVK, poly(vinylcarbazole); OXD‐7, (1,3‐phenylene)‐bis‐[5‐(4‐tert‐butylphenyl)‐1,3,4‐oxadiazole]; TPBi, 2,2′,2″‐(1,3,5‐benzenetriyl)tris(1‐phenyl‐1H‐benzimidazole)). The turn‐on voltage for the perylene OLED at 10 cd m–2 was around 6 V with a maximum brightness of 1200 cd m–2 at 13 V. The corresponding external quantum efficiency and device current efficiency were 1.5% and 2.8 cd A–1 respectively. In summary, this study provides proof of principle that OLEDs can be constructed from PLA, a readily available and renewable bio‐source.
Al‐Attar, H., Alwattar, A. A., Haddad, A., Abdullah, B. A., Quayle, P., & Yeates, S. G. (2020). Polylactide‐perylene derivative for blue biodegradable organic light‐emitting diodes. Polymer International, 70(1), 51-58. https://doi.org/10.1002/pi.6083
|Journal Article Type||Article|
|Acceptance Date||Jul 10, 2020|
|Online Publication Date||Jul 25, 2020|
|Publication Date||Dec 5, 2020|
|Deposit Date||Aug 5, 2020|
|Publicly Available Date||Aug 5, 2020|
|Peer Reviewed||Peer Reviewed|
Published Journal Article (Advance online version)
Publisher Licence URL
Advance online version © 2020 The Authors. Polymer International published by John Wiley & Sons Ltd on behalf of Society of Industrial Chemistry. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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