Blue thermally activated delayed fluorescent devices using triazine acceptor based emitters with high rate constant of reverse intersystem crossing

Ho Suk Kang; Soon Ok Jeon; Yeon Sook Chung; Myungsun Sim; Jongsoo Kim; Joonghyuk Kim; Hasup Lee; Soo Ghang Ihn; Sunghan Kim

doi:10.1117/12.2566656

20 August 2020 Blue thermally activated delayed fluorescent devices using triazine acceptor based emitters with high rate constant of reverse intersystem crossing

Ho Suk Kang, Soon Ok Jeon, Yeon Sook Chung, Myungsun Sim, Jongsoo Kim, Joonghyuk Kim, Hasup Lee, Soo Ghang Ihn, Sunghan Kim

Author Affiliations +

Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 1147306 (2020) https://doi.org/10.1117/12.2566656
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Abstract

Recently all-organic thermally activated delayed fluorescent (TADF) emitters have attracted great attention. In TADF emitters, nonemissive triplet states can be also harvested via population of emissive singlet states through reverse intersystem crossing (RISC). The RISC can be induced by the small energy gap between the lowest singlet (S1) and triplet (T1) states. Due to this ability of TADF, 100% internal quantum efficiency and high maximum external quantum efficiency (EQEmax) comparable to those of phosphorescent organic light emitting diodes (OLEDs) have been already reported in TADF OLEDs. In this study, we demonstrate high efficiency TADF OLEDs which are attributed to employing triazine acceptor type TADF compounds having high RISC rates(kRISC).

Conference Presentation

Citation Download Citation

Ho Suk Kang, Soon Ok Jeon, Yeon Sook Chung, Myungsun Sim, Jongsoo Kim, Joonghyuk Kim, Hasup Lee, Soo Ghang Ihn, and Sunghan Kim "Blue thermally activated delayed fluorescent devices using triazine acceptor based emitters with high rate constant of reverse intersystem crossing", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 1147306 (20 August 2020); https://doi.org/10.1117/12.2566656

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

External quantum efficiency

Lens design

Organic light emitting diodes

Excitons

Molecules

Keywords/Phrases

Search In:

Publication Years