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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Chemija / Chemistry (N003)
Author(s): Lengvinaitė, Simona;Gražulevičius, Juozas Vidas;Grigalevičius, Saulius;Zhang, B;Xie, Zhi-Yuan;Jankauskas, Vygintas
Title: Electro-active monomers and polymers containing 3-arylcarbazol-9-yl fragments
Is part of: Synthetic Metals. Lausanne : Elsevier B.V, 2010, Vol. 160, iss. 17-18
Extent: p. 1962-1967
Date: 2010
Keywords: Electro-active monomer;Polymer;Ionization potential;Hole drift mobility;Light emitting diode
Abstract: Monomers and polymers containing 3-arylcarbazol-9-yl fragments were synthesized. The materials were examined by various techniques including differential scanning calorimetry, thermogravimetry, electron photoemission spectrometry and xerographic time of flight technique. The electron photoemission spectra of the layers of the derivatives showed ionization potentials of 5.35–5.45 eV. Hole drift mobilities in the layers of the monomers dispersed in polymeric host bisphenol Z polycarbonate (50%) range from 10−6 to 1.6 × 10−5 cm2 V−1 s−1 at high electric fields at room temperature. The synthesized polymers have been tested as hole-transporting materials in bilayer OLEDs with Alq3 as the emitter. The device with polymer containing (1-naphtyl)phenylamino substituted carbazolyl fragments exhibited the best overall performance with turn-on voltage of 3 V, a maximum photometric efficiency of 4.1 cd/A and maximum brightness of ca. 22,900 cd/m2
Affiliation(s): Kauno technologijos universitetas
Vilniaus universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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