PEDOT as an alignment layer and electrode in AFLC devices

• Autorzy: Medialdea D. P. , Bennis N. , Cerrolaza B. , Quintana X. , Otón J. M. , Arredondo B. , Romero B. , Geday M. A.
• Języki publikacji: EN

Abstrakty

EN

PEDOT [Poly (3, 4-ethylenedioxythiophene) poly (styrenesulfonate)] is a material typically used organic light emission displays (OLEDs) manufactured as a conductor, or rather, as a hole injector. In this paper, three different issues have been studied: the use of rubbed PEDOT as alignment layer, the resistivity of the applied PEDOT layers, i.e., its potential as a replacement of ITO electrodes, and the induction of asymmetry in the electro-optical response of liquid crystal cells by assembling the display with dissimilar coated aligning surfaces - PEDOT on one side and buffed nylon on the counter electrode.

Słowa kluczowe

EN

nematics liquid crystals; antiferroelectric liquid crystals; asymmetric response; OLEDs; PEDOT:PSS.

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2009
• Tom: Vol. 17, No. 1
• Strony: 78--83
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Medialdea D. P.

autor

Bennis N.

autor

Cerrolaza B.

autor

Quintana X.

autor

Otón J. M.

autor

Arredondo B.

autor

Romero B.

autor

Geday M. A.

• Departamento de Tecnologia Fotónica, ETSI Telecomunicación, Universidad Politecnica de Madrid, Ciudad Universitaria s/n, Madrid, Spain,

Bibliografia

• [1] T.P. Nguyen, P. Le Rendu, P.D. Long, and S.A. De Vos: Chemical and thermal treatment of PEDOT. PSS thin films for use in organic light emitting diodes. Surf. Coat. Tech. 180, 646-649, 2004.
• [2] N. Bennis, E. Martinelli, G. Galli, M.A. Geday, P.L. Castillo, X. Quintana, and J.M. Otón: Asymmetric response induced by low energy surfaces in antiferroelectric liquid crystal cells. Ferroelectrics 344, 457-466, 2006.
• [3] N. Bennis, A. Spadło, R. Dąbrowski, E. Martinelli, G. Galli, X. Quintana, J.M. Otón, and M.A. Geday: Low threshold voltage asymmetric antiferroelectric liquid crystal cells. Opto-Electron. Rev. 14, 25-29, 2006.
• [4] J.M. Otón, J.M.S. Pena, X. Quintana, J.L. Gayo, and V. Urruchi, Appl. Phys. Lett. 78, 2422-2424, 2001.
• [5] J.L. Gayo, J.M. Otón, X. Quintana, V. Urruchi, C. Toscazo, and N. Bennis, Mol. Cryst. Liq. Cryst. 375, 121, 2002.
• [6] D.P. Medialdea, F. Beunis, N. Bennis, X. Quintana, J.M. Otón, and K. Neyts: Asymmetric switching and charge transport in AFLC devices with dissimilar alignment layer. Proc. 2nd Liquid Crystals for Photonics Conf., Cambridge, 2008.
• [7] A.L. Alexe-Ionescu, A.T. Ionescu, N. Scaramuzza, G. Strangi, C. Versacé, G. Barbero, and R. Bartolino, Phys. Rev. E64, 011708-1, 2001.
• [8] G. Strangi, D.E. Lucchetta, E. Cazzanelli, N. Scaramuzza, C. Versacé, and R. Bartolino, Appl. Phys. Lett. 74, 534, 1999.
• [9] K. Neyts and F. Beunis: Ion transport and switching currents in smectic liquid crystal devices, Ferroelectrics 344, 255, 2006.
• [10] P.C. Wang and A.G. MacDiarmid, Displays 28, 101-104, 2007.