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Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system: effect of extended conjugation on singlet‐triplet energy gap

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Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system : effect of extended conjugation on singlet‐triplet energy gap. / Kumar, Shiv; Rajamalli, Pachaiyappan; Cordes, David B.; Slawin, Alexandra M. Z.; Zysman-Colman, Eli.

In: Asian Journal of Organic Chemistry, Vol. Early View, 27.05.2020.

Research output: Contribution to journalArticle

Harvard

Kumar, S, Rajamalli, P, Cordes, DB, Slawin, AMZ & Zysman-Colman, E 2020, 'Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system: effect of extended conjugation on singlet‐triplet energy gap', Asian Journal of Organic Chemistry, vol. Early View. https://doi.org/10.1002/ajoc.202000165

APA

Kumar, S., Rajamalli, P., Cordes, D. B., Slawin, A. M. Z., & Zysman-Colman, E. (2020). Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system: effect of extended conjugation on singlet‐triplet energy gap. Asian Journal of Organic Chemistry, Early View. https://doi.org/10.1002/ajoc.202000165

Vancouver

Kumar S, Rajamalli P, Cordes DB, Slawin AMZ, Zysman-Colman E. Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system: effect of extended conjugation on singlet‐triplet energy gap. Asian Journal of Organic Chemistry. 2020 May 27;Early View. https://doi.org/10.1002/ajoc.202000165

Author

Kumar, Shiv ; Rajamalli, Pachaiyappan ; Cordes, David B. ; Slawin, Alexandra M. Z. ; Zysman-Colman, Eli. / Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system : effect of extended conjugation on singlet‐triplet energy gap. In: Asian Journal of Organic Chemistry. 2020 ; Vol. Early View.

Bibtex - Download

@article{09fac5e9ce004eb7a279bc3e3c31200d,
title = "Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system: effect of extended conjugation on singlet‐triplet energy gap",
abstract = "Three D‐π‐A type linearly‐extended emitters, based on diphenylamine (DPA ) as the donor and 2,4,6‐triphenyl‐1,3,5‐triazine (TRZ ) as the acceptor, were synthesized and their optoelectronic properties characterized. The introduction of an additional phenyl or phenylethynyl π‐spacer results in an enhancement of the molar extinction coefficient and a systematic bathochromic shift of the charge‐transfer transition in the absorption spectra. A mirrored bathochromic shift in the photoluminescence spectra is also observed with increasing conjugation of the bridge moiety. All three compounds show high photoluminescence quantum yields and moderate singlet‐triplet excited state energy gaps, ΔE ST, of 0.26‐0.37 eV were observed in 10 wt% doped films in mCP as the host matrix.",
keywords = "Donor-acceptor, Charge transfer, Fluorescence, Thermally activated delayed fluorescence, Triazine",
author = "Shiv Kumar and Pachaiyappan Rajamalli and Cordes, {David B.} and Slawin, {Alexandra M. Z.} and Eli Zysman-Colman",
note = "SK acknowledges the financial support from European Union's Horizon 2020 research and innovation programme under Marie Sk{\l}odowska Curie Individual Fellowship (MCIF; Agreement No. 748430‐THF‐OLED).",
year = "2020",
month = may,
day = "27",
doi = "10.1002/ajoc.202000165",
language = "English",
volume = "Early View",
journal = "Asian Journal of Organic Chemistry",
issn = "2193-5815",
publisher = "Wiley-VCH, Weinheim",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Highly fluorescent emitters based on triphenylamine‐π‐triazine (D‐π‐A) system

T2 - effect of extended conjugation on singlet‐triplet energy gap

AU - Kumar, Shiv

AU - Rajamalli, Pachaiyappan

AU - Cordes, David B.

AU - Slawin, Alexandra M. Z.

AU - Zysman-Colman, Eli

N1 - SK acknowledges the financial support from European Union's Horizon 2020 research and innovation programme under Marie Skłodowska Curie Individual Fellowship (MCIF; Agreement No. 748430‐THF‐OLED).

PY - 2020/5/27

Y1 - 2020/5/27

N2 - Three D‐π‐A type linearly‐extended emitters, based on diphenylamine (DPA ) as the donor and 2,4,6‐triphenyl‐1,3,5‐triazine (TRZ ) as the acceptor, were synthesized and their optoelectronic properties characterized. The introduction of an additional phenyl or phenylethynyl π‐spacer results in an enhancement of the molar extinction coefficient and a systematic bathochromic shift of the charge‐transfer transition in the absorption spectra. A mirrored bathochromic shift in the photoluminescence spectra is also observed with increasing conjugation of the bridge moiety. All three compounds show high photoluminescence quantum yields and moderate singlet‐triplet excited state energy gaps, ΔE ST, of 0.26‐0.37 eV were observed in 10 wt% doped films in mCP as the host matrix.

AB - Three D‐π‐A type linearly‐extended emitters, based on diphenylamine (DPA ) as the donor and 2,4,6‐triphenyl‐1,3,5‐triazine (TRZ ) as the acceptor, were synthesized and their optoelectronic properties characterized. The introduction of an additional phenyl or phenylethynyl π‐spacer results in an enhancement of the molar extinction coefficient and a systematic bathochromic shift of the charge‐transfer transition in the absorption spectra. A mirrored bathochromic shift in the photoluminescence spectra is also observed with increasing conjugation of the bridge moiety. All three compounds show high photoluminescence quantum yields and moderate singlet‐triplet excited state energy gaps, ΔE ST, of 0.26‐0.37 eV were observed in 10 wt% doped films in mCP as the host matrix.

KW - Donor-acceptor

KW - Charge transfer

KW - Fluorescence

KW - Thermally activated delayed fluorescence

KW - Triazine

U2 - 10.1002/ajoc.202000165

DO - 10.1002/ajoc.202000165

M3 - Article

VL - Early View

JO - Asian Journal of Organic Chemistry

JF - Asian Journal of Organic Chemistry

SN - 2193-5815

ER -

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