Academic Journal
Highly Luminescent Europium(III) Complexes in Solution and PMMA-Doped Films for Bright Red Electroluminescent Devices
العنوان: | Highly Luminescent Europium(III) Complexes in Solution and PMMA-Doped Films for Bright Red Electroluminescent Devices |
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المؤلفون: | Zubair Ahmed, Rafael dos Santos Carvalho, Aline Magalhães dos Santos, Francesca Gambassi, Elisa Bandini, Lorenza Marvelli, Lucia Maini, Andrea Barbieri, Marco Cremona |
المصدر: | Molecules; Volume 28; Issue 11; Pages: 4371 |
بيانات النشر: | Multidisciplinary Digital Publishing Institute |
سنة النشر: | 2023 |
المجموعة: | MDPI Open Access Publishing |
مصطلحات موضوعية: | europium complexes, crystal structure, photoluminescence, electroluminescence, OLED |
جغرافية الموضوع: | agris |
الوصف: | This paper reports the synthesis, structure, photophysical, and optoelectronic properties of five eight-coordinate Europium(III) ternary complexes, namely, [Eu(hth)3(L)2], bearing 4,4,5,5,6,6,6-heptafluoro-1-(2-thienyl)-1,3-hexanedione (hth) as a sensitizer and L = H2O (1), dpso (diphenyl sulphoxide, 2), dpsoCH3 (4,4′-dimethyl diphenyl sulfoxide, 3), dpsoCl (bis(4-chlorophenyl)sulphoxide, 4), and tppo (triphenylphosphine oxide, 5) as co-ligands. The NMR and the crystal structure analysis confirmed the eight-coordinate structures of the complexes in solution and in a solid state. Upon UV-excitation on the absorption band of the β-diketonate ligand hth, all complexes showed the characteristic bright red luminescence of the Europium ion. The tppo derivative (5) displayed the highest quantum yield (up to 66%). As a result, an organic light-emitting device, OLED, was fabricated with a multi-layered structure—ITO/MoO3/mCP/SF3PO:[complex 5] (10%)/TPBi:[complex 5] (10%)/TmPyPB/LiF/Al—using complex 5 as the emitting component. |
نوع الوثيقة: | text |
وصف الملف: | application/pdf |
اللغة: | English |
Relation: | Cross-Field Chemistry; https://dx.doi.org/10.3390/molecules28114371 |
DOI: | 10.3390/molecules28114371 |
الاتاحة: | https://doi.org/10.3390/molecules28114371 |
Rights: | https://creativecommons.org/licenses/by/4.0/ |
رقم الانضمام: | edsbas.A4988DD6 |
قاعدة البيانات: | BASE |
DOI: | 10.3390/molecules28114371 |
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