Record Details

Pyrene appended terpyridine derivatives as electrochemiluminescence material for OLEDs: Characterization of photo-physical, thermal and electrochemical properties

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Pyrene appended terpyridine derivatives as electrochemiluminescence material for OLEDs: Characterization of photo-physical, thermal and electrochemical properties
 
Creator Umasankar, Gorakala
Busireddy, Manohar Reddy
Kotamarthi, Bhanuprakash
Karunakar, Galla V
Rao, Vaidya Jayathirtha
 
Subject Terpyridine-pyrene derivatives
Fluorescence quantum yield
Delayed fluorescence
Phosphorescence
Thermal stability
Oxidation and reduction potentials
OLED materials
 
Description 1564-1574
Three new terpyridine appended pyrene derivatives (Pyr-Tp, Pyr-Ph-Tp, and Pyr-Bp-Tp) have been synthesized by condensation and Suzuki-Miyaura reaction. The photo-physical, electro-chemical and thermal properties of these compounds have been investigated in detail. DFT studies have been carried out to understand the structure-property relationships at the molecular level. Synthesized fluorophores displayed high quantum yield (70-96%) of fluorescence due to triplet to singlet intramolecular energy transfer, delayed fluorescence and positive solvatochromism indicating the presence of intra-molecular charge transfer excited state. In addition, they have high thermal decomposition temperature (Td: 390-450°C), melting temperature (Tm: 180-220°C) and further with suitable oxidation and reduction potentials makes them favourable molecules for OLED fabrications.
 
Date 2020-10-13T06:09:50Z
2020-10-13T06:09:50Z
2020-10
 
Type Article
 
Identifier 0975-0983(Online); 0376-4699(Print)
http://nopr.niscair.res.in/handle/123456789/55464
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJC-B Vol.59B(10) [October 2020]