Direct observation of intersystem crossing in a thermally activated delayed fluorescence copper complex in the solid state

Science Advances
Larissa BergmannIfor D W Samuel

Abstract

Intersystem crossing in thermally activated delayed fluorescence (TADF) materials is an important process that controls the rate at which singlet states convert to triplets; however, measuring this directly in TADF materials is difficult. TADF is a significant emerging technology that enables the harvesting of triplets as well as singlet excited states for emission in organic light emitting diodes. We have observed the picosecond time-resolved photoluminescence of a highly luminescent, neutral copper(I) complex in the solid state that shows TADF. The time constant of intersystem crossing is measured to be 27 picoseconds. Subsequent overall reverse intersystem crossing is slow, leading to population equilibration and TADF with an average lifetime of 11.5 microseconds. These first measurements of intersystem crossing in the solid state in this class of mononuclear copper(I) complexes give a better understanding of the excited-state processes and mechanisms that ensure efficient TADF.

References

Jan 30, 2007·Journal of the American Chemical Society·George B ShawLin X Chen
Jun 26, 2007·Journal of the American Chemical Society·Yoann LeydetNathan D McClenaghan
Aug 7, 2007·Inorganic Chemistry·Alexander J M MillerJonas C Peters
Dec 17, 2008·The Journal of Physical Chemistry. a·Gordon J HedleyIfor D W Samuel
Dec 4, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Junhui MinLixiang Wang
Apr 29, 2011·Journal of the American Chemical Society·Munetaka IwamuraTahei Tahara
Aug 5, 2011·Inorganic Chemistry·Rafał CzerwieniecHartmut Yersin
Nov 8, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Lucia MainiBarbara Ventura
Dec 14, 2012·Nature·Hiroki UoyamaChihaya Adachi
May 11, 2013·Chemical Communications : Chem Comm·Larissa BergmannStefan Bräse
Aug 24, 2013·The Journal of Physical Chemistry. a·Markus J LeitlHartmut Yersin
Jan 24, 2014·Physical Chemistry Chemical Physics : PCCP·Munetaka IwamuraTahei Tahara
Apr 24, 2014·Chemistry : a European Journal·Manuela WalleschStefan Bräse
Dec 2, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Timo GneußJörg Sundermeyer

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Citations

Aug 31, 2016·Topics in Current Chemistry·Larissa BergmannDaniel Volz
Oct 28, 2017·Physical Chemistry Chemical Physics : PCCP·F BäpplerR Diller
Jun 26, 2018·Chemistry : a European Journal·Alexey S BerezinMark B Bushuev
Sep 22, 2018·Physical Chemistry Chemical Physics : PCCP·Yuan-Jun GaoGanglong Cui
Nov 23, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexander SchinabeckHartmut Yersin
Jan 23, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Antoine VacherMathieu Achard
Feb 21, 2018·Nature Chemistry·B DickeS Herres-Pawlis
Dec 12, 2018·Chemistry : a European Journal·Michel HollerJean-François Nierengarten
Apr 24, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·José M Carbonell-VilarJoan Cano
Sep 10, 2020·Chemical Communications : Chem Comm·Ting WuDayu Wu
Jul 14, 2020·Light, Science & Applications·Ankur SharmaYuerui Lu
Feb 13, 2018·Physical Chemistry Chemical Physics : PCCP·Maria NaumovaMichael Rübhausen
Aug 17, 2019·Chemical Society Reviews·Babak PashaeiFrancesco Bonaccorso
Oct 31, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Hartmut YersinAlfiya F Suleymanova
Jan 17, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Michael KühnAndreas Eichhöfer
Oct 20, 2020·Physical Chemistry Chemical Physics : PCCP·Nora LüdtkeChristel M Marian
Apr 10, 2021·The Journal of Physical Chemistry Letters·Daniel T YonemotoFelix N Castellano
Jul 7, 2021·Light, Science & Applications·Ankur SharmaYuerui Lu
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Thomas HofbeckHartmut Yersin
Jul 28, 2018·Journal of the American Chemical Society·Sloane EvaristeChristophe Lescop
Jan 20, 2018·The Journal of Physical Chemistry Letters·Marsel Z ShafikovHartmut Yersin
Nov 28, 2018·Journal of the American Chemical Society·Hiroyuki TakedaOsamu Ishitani
May 3, 2018·Journal of the American Chemical Society·Shahnawaz RafiqGregory D Scholes

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