Issue 22, 2022

Exceptional class of thermally activated delayed fluorescent emitters that display pure blue, near-IR, circularly polarized luminescence and multifunctional behaviour for highly efficient and stable OLEDs

Abstract

Thermally activated delayed fluorescence (TADF) emitters with the ability to harvest both electro-generated singlet and triplet excitons have resulted in faster radiative decay, saturated color purity, a high photoluminescence quantum yield (PLQY), and the suppression of efficiency roll-off for efficient OLEDs. Considering these advantages, some exceptional types of TADF materials, that show pure blue emission, near-infrared (NIR) emission, circularly polarized luminescence (CPL), aggregation induced emission (AIE) and emitters that show multifunctional behavior, have recently been developed for highly efficient and stable OLEDs. In particular, these emitters have probably emerged as part of the design strategy to realize high PLQY, high color purity, circularly polarized light and have resolved the issues of long-term device stability. This review highlights and collates various key properties of these new-generation emitters by covering the experimental and theoretical aspects of model TADF emitters. This review also discusses the strategic material design principles, conceptual insights, and photophysical properties with structure-functionality that can influence their energy gap, triplet-to-singlet up-conversion, and ultimately the OLED performances in some of these materials.

Graphical abstract: Exceptional class of thermally activated delayed fluorescent emitters that display pure blue, near-IR, circularly polarized luminescence and multifunctional behaviour for highly efficient and stable OLEDs

Article information

Article type
Review Article
Submitted
05 جمادى الأولى 1443
Accepted
24 رمضان 1443
First published
28 رمضان 1443

J. Mater. Chem. C, 2022,10, 8536-8583

Exceptional class of thermally activated delayed fluorescent emitters that display pure blue, near-IR, circularly polarized luminescence and multifunctional behaviour for highly efficient and stable OLEDs

D. Barman, K. Narang, R. Gogoi, D. Barman and P. K. Iyer, J. Mater. Chem. C, 2022, 10, 8536 DOI: 10.1039/D1TC05906H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements