Search: onr:"swepub:oai:DiVA.org:umu-212310" >
Chemical doping to ...
Chemical doping to control the in-situ formed doping structure in light-emitting electrochemical cells
-
- Huseynova, Gunel (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Dept Phys, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
-
- Ràfols-Ribé, Joan (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Dept Phys, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
-
- Auroux, Etienne (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Dept Phys, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
-
show more...
-
- Huang, Ping (author)
- Uppsala universitet,Molekylär biomimetik
-
- Tang, Shi (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Dept Phys, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
-
- Larsen, Christian (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Dept Phys, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
-
- Edman, Ludvig, 1967- (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Dept Phys, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
-
show less...
-
(creator_code:org_t)
- Springer Nature, 2023
- 2023
- English.
-
In: Scientific Reports. - : Springer Nature. - 2045-2322. ; 13:1
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://umu.diva-por... (primary) (Raw object)
-
https://uu.diva-port... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- The initial operation of a light-emitting electrochemical cell (LEC) constitutes the in-situ formation of a p-n junction doping structure in the active material by electrochemical doping. It has been firmly established that the spatial position of the emissive p-n junction in the interelectrode gap has a profound influence on the LEC performance because of exciton quenching and microcavity effects. Hence, practical strategies for a control of the position of the p-n junction in LEC devices are highly desired. Here, we introduce a "chemical pre-doping" approach for the rational shifting of the p-n junction for improved performance. Specifically, we demonstrate, by combined experiments and simulations, that the addition of a strong chemical reductant termed "reduced benzyl viologen" to a common active-material ink during LEC fabrication results in a filling of deep electron traps and an associated shifting of the emissive p-n junction from the center of the active material towards the positive anode. We finally demonstrate that this chemical pre-doping approach can improve the emission efficiency and stability of a common LEC device.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database