Efficient light-emitting electrochemical cells using small molecular weight, ionic, host-guest systems
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Light-emitting electrochemical cells (LECs) based on fluorescent host-guest small molecules system are reported. The LECs show electroluminescence coming solely from the guest, with an external quantum efficiency (EQE) of 2.0%, which is very close to the theoretical maximum EQE (2.2%) for this particular system. This work demonstrates the possibility to obtain high efficiency devices employing low-cost materials, making host-guest systems a real alternative to more traditional semiconducting polymer or transition metal compounds.
Pertegás , A , Wong , M Y , Sessolo , M , Zysman-Colman , E & Bolink , H J 2016 , ' Efficient light-emitting electrochemical cells using small molecular weight, ionic, host-guest systems ' ECS Journal of Solid State Science and Technology , vol 5 , no. 1 , pp. R3160-R3163 . DOI: 10.1149/2.0201601jss
ECS Journal of Solid State Science and Technology
© 2015 The Electrochemical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1149/2.0201601jss
This work has been supported by the Spanish Ministry of Economy and Competitiveness (MAT2014-55200).
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