A fluorescent stilbenoid dendrimer for solution-processed blue light emitting diodes

C. Coya; A. L. Álvarez; M. Ramos; A. de Andrés; C. Zaldo; R. Gómez; J. L. Segura; C. Seoane

doi:10.1117/12.781089

16 April 2008 A fluorescent stilbenoid dendrimer for solution-processed blue light emitting diodes

C. Coya, A. L. Álvarez, M. Ramos, A. de Andrés, C. Zaldo, R. Gómez, J. L. Segura, C. Seoane

Proceedings Volume 6999, Organic Optoelectronics and Photonics III; 69992H (2008) https://doi.org/10.1117/12.781089
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

We report a solution processed blue stilbenoid dendrimer based on a 1, 3, 5 - benzene core and endowed with a periphery of electron donating and solubilizing alkoxy chains. Raman analysis it is revealed as a helpful tool to investigate changes from the pristine material to the material in the OLED structure, explaining the differences between the dendrimer single layer thin film photoluminescence (PL) and the electroluminescence (EL) dendrimer active layer emission in the device. We report a blue EL emission (439 nm) and a very promising effective mobility value of 2.55 × 10^-5 cm²/(V•s) suggesting good transport properties for non doped blue OLEDs that use air stable Al as the cathode.

Citation Download Citation

C. Coya, A. L. Álvarez, M. Ramos, A. de Andrés, C. Zaldo, R. Gómez, J. L. Segura, and C. Seoane "A fluorescent stilbenoid dendrimer for solution-processed blue light emitting diodes", Proc. SPIE 6999, Organic Optoelectronics and Photonics III, 69992H (16 April 2008); https://doi.org/10.1117/12.781089

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