Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes

Brighter OLEDs: role of chain packing revealed The detailed time-resolved photophysical studies stress the importance of the morphology of the polymer chains on designing high efficiency organic light emitting diodes. A collaborative team lead by Prof Dinesh Kabra from Indian Institute of Technology...

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Autores principales:	Amrita Dey, Naresh Chandrasekaran, Dwaipayan Chakraborty, Priya Johari, Christopher R. McNeill, Akshay Rao, Dinesh Kabra
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/61234b0fca5047288ba5c9ac5e781d63
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spelling	oai:doaj.org-article:61234b0fca5047288ba5c9ac5e781d632021-12-02T13:43:50ZKinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes10.1038/s41528-018-0042-02397-4621https://doaj.org/article/61234b0fca5047288ba5c9ac5e781d632018-11-01T00:00:00Zhttps://doi.org/10.1038/s41528-018-0042-0https://doaj.org/toc/2397-4621Brighter OLEDs: role of chain packing revealed The detailed time-resolved photophysical studies stress the importance of the morphology of the polymer chains on designing high efficiency organic light emitting diodes. A collaborative team lead by Prof Dinesh Kabra from Indian Institute of Technology Bombay conducts systematic investigations on the decay kinetics and the mechanism of the delayed fluorescence in a typical F8BT based polymeric light-emitting diodes. Through time-resolved emission spectroscopy as a function of film thickness, excitation fluence, magnetic-field, and temperature, they show that the main process controlling the delayed fluorescence is thermally activated triplet-triplet annihilation. They further show that the triplet transport is highly dependent on the molecular packing order and film thickness of the F8BT polymer, opening feasible gateways for molecular engineering of polymer LEDs.Amrita DeyNaresh ChandrasekaranDwaipayan ChakrabortyPriya JohariChristopher R. McNeillAkshay RaoDinesh KabraNature PortfolioarticleElectronicsTK7800-8360Materials of engineering and construction. Mechanics of materialsTA401-492ENnpj Flexible Electronics, Vol 2, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492 Amrita Dey Naresh Chandrasekaran Dwaipayan Chakraborty Priya Johari Christopher R. McNeill Akshay Rao Dinesh Kabra Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
description	Brighter OLEDs: role of chain packing revealed The detailed time-resolved photophysical studies stress the importance of the morphology of the polymer chains on designing high efficiency organic light emitting diodes. A collaborative team lead by Prof Dinesh Kabra from Indian Institute of Technology Bombay conducts systematic investigations on the decay kinetics and the mechanism of the delayed fluorescence in a typical F8BT based polymeric light-emitting diodes. Through time-resolved emission spectroscopy as a function of film thickness, excitation fluence, magnetic-field, and temperature, they show that the main process controlling the delayed fluorescence is thermally activated triplet-triplet annihilation. They further show that the triplet transport is highly dependent on the molecular packing order and film thickness of the F8BT polymer, opening feasible gateways for molecular engineering of polymer LEDs.
format	article
author	Amrita Dey Naresh Chandrasekaran Dwaipayan Chakraborty Priya Johari Christopher R. McNeill Akshay Rao Dinesh Kabra
author_facet	Amrita Dey Naresh Chandrasekaran Dwaipayan Chakraborty Priya Johari Christopher R. McNeill Akshay Rao Dinesh Kabra
author_sort	Amrita Dey
title	Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
title_short	Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
title_full	Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
title_fullStr	Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
title_full_unstemmed	Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
title_sort	kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/61234b0fca5047288ba5c9ac5e781d63
work_keys_str_mv	AT amritadey kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes AT nareshchandrasekaran kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes AT dwaipayanchakraborty kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes AT priyajohari kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes AT christopherrmcneill kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes AT akshayrao kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes AT dineshkabra kineticsofthermallyactivatedtripletfusionasafunctionofpolymerchainpackinginboostingtheefficiencyoforganiclightemittingdiodes
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Kinetics of thermally activated triplet fusion as a function of polymer chain packing in boosting the efficiency of organic light emitting diodes

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