TY - JOUR
T1 - Tetraaryl pyrenes
T2 - Photophysical properties, computational studies, crystal structures, and application in OLEDs
AU - El-Assaad, Tarek H.
AU - Auer, Manuel
AU - Castañeda, Raul
AU - Hallal, Kassem M.
AU - Jradi, Fadi M.
AU - Mosca, Lorenzo
AU - Khnayzer, Rony S.
AU - Patra, Digambara
AU - Timofeeva, Tatiana V.
AU - Brédas, Jean Luc
AU - List-Kratochvil, Emil J.W.
AU - Wex, Brigitte
AU - Kaafarani, Bilal R.
N1 - Funding Information:
This work was supported by the Petroleum Research Fund (PRF) of the American Chemical Society (grant #: 47343-B10). The authors are grateful to this support. B.R.K. and B.W. acknowledge the Arab Fund Scholarship Program for financial support. The authors thank Dr. Veaceslav Coropceanu, Mr. Alexandr Fonari and Mr. Stephen B. Shirring for fruitful discussions. M.A. gratefully acknowledges the financial support of the Klima- und Energiefonds Project PLASMOLED 3726090. TVT and RC were supported by NSF PREM grants DMR-0934212 and DMR-1523611.
Publisher Copyright:
© The Royal Society of Chemistry 2016.
PY - 2016/4/14
Y1 - 2016/4/14
N2 - Pyrene was derivatized in positions 1, 3, 6, and 8 to yield a series of nine tetraarylpyrenes for which absorption, emission, emission lifetimes and solvatochromism in solution were determined. The fluorescence quantum yields in thin films and crystalline state, electrochemistry, and quantum-chemical calculations were completed for the series along with the X-ray crystal structure analysis of compounds 1, 2, 4, 5, 7, and 9. Compounds 2, 3, 4 as well as 7 were identified as the most suitable candidates for OLED application. Notably, in an unoptimized single-layer device geometry, these compounds exhibited blue electroluminescence coupled with impressively low turn-on voltages and high maximum luminances such as 2.8 V and 13 542 cd m-2 at 8.2 V for compound 2, respectively.
AB - Pyrene was derivatized in positions 1, 3, 6, and 8 to yield a series of nine tetraarylpyrenes for which absorption, emission, emission lifetimes and solvatochromism in solution were determined. The fluorescence quantum yields in thin films and crystalline state, electrochemistry, and quantum-chemical calculations were completed for the series along with the X-ray crystal structure analysis of compounds 1, 2, 4, 5, 7, and 9. Compounds 2, 3, 4 as well as 7 were identified as the most suitable candidates for OLED application. Notably, in an unoptimized single-layer device geometry, these compounds exhibited blue electroluminescence coupled with impressively low turn-on voltages and high maximum luminances such as 2.8 V and 13 542 cd m-2 at 8.2 V for compound 2, respectively.
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U2 - 10.1039/c5tc02849c
DO - 10.1039/c5tc02849c
M3 - Article
AN - SCOPUS:84963820953
VL - 4
SP - 3041
EP - 3058
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 14
ER -