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Current Topics in Biophysics

The Journal of Adam Mickiewicz University

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A. Vembris, M. Porozovs, I. Muzikante, J. Latvels, A. Sarakovskis, V. Kokars and E. Zarins

Novel Amorphous Red Electroluminescence Material Based on Pyranylidene Indene-1,3-Dione Derivative

The organic light emitting diode (OLED) is a promising device for future technologies, like flat panel displays and novel light sources. So far the OLED structures have mostly been made by thermal evaporation in vacuum. An alternative approach is to use small molecules which form solid state with glassy structure from solutions. Such compounds can be used in the ink-jet printing technologies and result in reducing the OLED prices.

In this paper, we present an original red fluorescent organic compound 2-(2-(4-(bis(2-(trityloxy)ethyl)amino)styryl)-6-methyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione (ZWK1), with the maximum of the photoluminescence spectrum for solid state at 657 nm. The structure of the electroluminescent device was ITO/PEDOT: PSS (40 nm)/ZWK1 (120 nm)/LiF (1 nm)/Al (100 nm). The electroluminescence spectra correspond to the CIE coordinates x = 0.65 and y = 0.34 with the maximum at 667 nm. The power and luminance efficiency at the luminance of 100 cd/m2 is 0.43 lm/W and 1.97 cd/A, respectively.

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A. Prohorenko and P. Dumenko

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F. Muktepavela, G. Bakradze and R. Zabels

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N. Remez, A. Dychko, S. Kraychuk, N. Ostapchuk, L. Yevtieieva and V. Bronitskiy

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A. Gerbreders and J. Teteris

References Gertners, U., & Teteris, J. (2007). Direct holographic recording on amorphous chalcogenide films. 22 nd Int. Conf. on Amorphous and Nanocrystalline Semiconductors (ICANS22) , Colorado (USA), ThP13.7. Gertners, U., & Teteris, J. (2009). Latv. J. Phys. Tec. Sci. , (3), 30-36. Andries, A., Bivol, V., Prisacar, A., Sergheev, S., Meshalkin, A., Robu, S., Barba, N., & Sirbu, N. (2005). J. Optoelectronics and Advanced Materials, 7 (3), 1169

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Dmytro V. Mykhalevskiy

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B. Martuzans and Yu. Skryl

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I. Geipele, S. Geipele, T. Staube, G. Ciemleja and N. Zeltins

.matlet.2016.01.044. 43. Martínez, I. A., Roldán, É., Dinis, L., Petrov, D., Parrondo, J. M. R., & Rica, R. A. (2015). Brownian Carnot engine. Nature Physics , 12 (1) , 67–70. DOI: 10.1038/nphys3518. 44. Yardimci, N.T., & Jarrahi, M. (2015). 3.8 mW terahertz radiation generation through plasmonic nano-antenna arrays. In 2015 IEEE Int. Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 19–24 July 2015 (pp. 2113–2114). Vancouver, Canada: IEEE. DOI: 10.1109/APS.2015.7305446.

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