Three-State-Involving Vibronic Resonance Is a Key to Enhancing Reverse Intersystem Crossing Dynamics of Organoboron-Based Ultrapure Blue Emitters

Inkoo Kim; Kwuang Hyun Cho; Soon Ok Jeon; Won-Joon Son; Dongwook Kim; Young Min Rhee; Inkook Jang; Hyeonho Choi; Dae Sin Kim

doi:10.26434/chemrxiv.12413417.v1

Theoretical and Computational Chemistry

Search within Theoretical and Computational Chemistry

Three-State-Involving Vibronic Resonance Is a Key to Enhancing Reverse Intersystem Crossing Dynamics of Organoboron-Based Ultrapure Blue Emitters

04 June 2020, Version 1

Working Paper

Show author details

This content is a preprint and has not undergone peer review at the time of posting.

Abstract

In organoboron OLED emitter DABNA, vibronic resonance strongly enhances reverse intersystem crossing rate even with a sizable T1-S1 energy gap. The resonance is peculiar in that the vibrational frequency has to match both (1) the T1-S1 energy gap and (2) the T1-T3 nonadiabatic coupling oscillation frequency. This three-state involving resonance is a result of combination of T1-T3-S1 superexchange and T1-T3 non-Condon coupling.

Keywords

DABNA

OLED

vibronic resonance

reverse intersystem crossing

thermally activated delayed fluorescence

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here .

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Now Published

Three States Involving Vibronic Resonance is a Key to Enhancing Reverse Intersystem Crossing Dynamics of an Organoboron-Based Ultrapure Blue Emitter

Inkoo Kim, Kwang Hyun Cho, Soon Ok Jeon, Won-Joon Son, Dongwook Kim, Young Min Rhee, Inkook Jang, Hyeonho Choi, Dae Sin Kim journal article

JACS Au , Volume 1, Issue 7

Online publication date: Jun 03, 2021

Version History

Jun 04, 2020 Version 1

Metrics

2,631

601

Views

Downloads

License

The content is available under CC BY NC ND 4.0

DOI

10.26434/chemrxiv.12413417.v1

Author’s competing interest statement

None

Three-State-Involving Vibronic Resonance Is a Key to Enhancing Reverse Intersystem Crossing Dynamics of Organoboron-Based Ultrapure Blue Emitters

Authors

Abstract

Keywords

Comments

Now Published

Version History

Metrics

License

DOI

Author’s competing interest statement

Share