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 - 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
SN - 2050-7534
VL - 4
SP - 3041
EP - 3058
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 14
ER -