Efficient light-emitting electrochemical cells using small molecular weight, ionic, host-guest systems

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Date

2016

Abstract

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.

Citation

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

Publication

ECS Journal of Solid State Science and Technology

Status

Peer reviewed

DOI

https://doi.org/10.1149/2.0201601jss

ISSN

2162-8769

Type

Journal article

Rights

© 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

Description

This work has been supported by the Spanish Ministry of Economy and Competitiveness (MAT2014-55200).

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URI

http://hdl.handle.net/10023/7675

St Andrews Research Repository