Exciplex‐based organic light‐emitting diodes with deep blue emission

Houssein El Housseiny; Ghada Mbarki; David Buso; Marc Ternisien; Georges Zissis; Cédric Renaud

doi:10.1117/12.3022876

18 June 2024 Exciplex‐based organic light‐emitting diodes with deep blue emission

Houssein El Housseiny, Ghada Mbarki, David Buso, Marc Ternisien, Georges Zissis, Cédric Renaud

Proceedings Volume 13013, Organic Electronics and Photonics: Fundamentals and Devices IV; 1301303 (2024) https://doi.org/10.1117/12.3022876
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Exciplex are generated at the heterojunction interface of electron donor and acceptor materials. Exciplex strategy can, thus, reduce molecular design difficulties for obtaining near-UV emission by selecting the appropriate electron donors and acceptors. Induced exciplex of Tris(4-carbazoyl-9-ylphenyl)amine (TCTA)/ 2,9-Dimethyl-4,7-diphenyl-1,10- phenanthroline (BCP) were applied to design deep blue organic light emitting diodes (OLEDs). BCP was used as an electron transport material and TCTA as a hole transporting material. The investigations carried out on planar-heterojunction have shown that recombination region was located at the vicinity of TCTA/BCP interface leading to exciplex formation. Furthermore, the thicknesses of BCP and TCTA layers play a key role in the control of the recombination zone and the emission color of the OLEDs. The electroluminescent spectra of planar-heterojunction exciplex-based OLEDs displayed deep blue emission at 423 nm with CIE coordinate of (0.16, 0.11). The emission of bulk-heterojunction exciplex-based OLEDs are also investigated showing that their emission is dominated by electroplex emission. The results demonstrate the feasibility of fabricating the efficient exciplex-based deep-blue OLED.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Houssein El Housseiny, Ghada Mbarki, David Buso, Marc Ternisien, Georges Zissis, and Cédric Renaud "Exciplex‐based organic light‐emitting diodes with deep blue emission", Proc. SPIE 13013, Organic Electronics and Photonics: Fundamentals and Devices IV, 1301303 (18 June 2024); https://doi.org/10.1117/12.3022876

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available