Recent Developments on Multi-Functional Metal-Free Mechanochromic Luminescence and Thermally Activated Delayed Fluorescence Organic Materials

Frontiers in Chemistry
Debasish BarmanParameswar Krishnan Iyer

Abstract

Metal-free organic compounds with highly ordered π-conjugated twisted skeletons are capable of generating brilliant multi-colored light. Additionally, the co-existence of numerous other multi-functional properties have endowed them with the potential to be a promising class of materials for several electronic and photonic applications and next-generation advanced luminescent material-based devices. This review highlights the recent developments made in this fascinating class of multi-property encompassing materials, involving a highly twisted donor-acceptor based single molecular platform with synchronized photophysical behavior such as thermally activated delayed fluorescence (TADF), mechanoresponsive (MR), room-temperature phosphorescence (RTP), and aggregation induced emission (AIE) with associated unique and inherently manifested structure-property relationship investigations. Furthermore, a brief summary of the optoelectronic behavior of TADF materials are also presented by correlating their performances in the organic light-emitting diodes (OLEDs) and corresponding EL devices. In addition to mechanochromic luminescence (MCL) with TADF behavior, new types of emitters are also being developed, with tunable color changes suc...Continue Reading

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Citations

Dec 15, 2020·Physical Chemistry Chemical Physics : PCCP·Rama DhaliAnna Painelli
Jun 23, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Debasish BarmanParameswar Krishnan Iyer

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Methods Mentioned

BETA
chips
phosphorescence
X-ray
fluorescence microscopy

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