Blue light-emitting devices based on glassy tetraphenylsilane molecular materials

Li-Hsin Chan; Hsiu-Chih Yeh; Chin-Ti Chen

doi:10.1117/12.457485

27 February 2002 Blue light-emitting devices based on glassy tetraphenylsilane molecular materials

Li-Hsin Chan, Hsiu-Chih Yeh, Chin-Ti Chen

Proceedings Volume 4464, Organic Light-Emitting Materials and Devices V; (2002) https://doi.org/10.1117/12.457485
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Tetraphenylsilane derivatives attached with one to four of N,N-diphenylaninooxadiazole(TPAOXD) blue fluorescent moieties, namely Si(PhTPAOXD)₄, PhSi(PhTPAOXD)₃, PH₂Si(PhTPAOXD)₂, and Ph₃Si(PhTPAOXD), were synthesized and characterized. Tetraphenylsilane core structure provides an effective molecular skeleton for inhibiting the crystallization of the material. Very bright blue electroluminescence (>20,000 cd/m²) was observed for a trilayer device with configuration of ITO/NPB/PH₃Si)PhTPAOXD)/Alq₃/Mg:Ag. The electroluminescence of the device, in terms of emission wavelength and chromaticity, is highly dependent on the thickness of emitting layer. The current-voltage-electroluminescence characteristics of the devices are described.

Citation Download Citation

Li-Hsin Chan, Hsiu-Chih Yeh, and Chin-Ti Chen "Blue light-emitting devices based on glassy tetraphenylsilane molecular materials", Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002); https://doi.org/10.1117/12.457485

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