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Title: Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization[Polymer Light Emitting Diodes]

Abstract

The fabrication and characterization of polyaniline (PANI) derivatives deposited on ITO coated glass is investigated as possible hole injection layers for MEH-PPV based polymer light emitting diode (PLED) devices. This involved multilayer ordering by the alternate polyelectrolyte adsorption of polyaniline and sulfonated polyaniline with an oppositely charged polyelectrolyte from solution. A combination of spectroscopic and microscopic techniques was utilized to determine the layer ordering, film structure, morphology, and homogeneity. The deposition process generally showed a linear behavior for all pairs as shown by ellipsometry and UV-vis spectroscopy. However, surface plasmon spectroscopy (SPS) and AFM revealed that thicker films are accompanied by increased surface roughness regardless of concentration. Comparison in performance was made between bare ITO and PANI or SPANI coated devices. Initial investigations of PLED performance showed significant improvements in lifetime and efficiency compared to bare ITO.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Stanford Univ., CA (US)
OSTI Identifier:
20034079
Resource Type:
Conference
Resource Relation:
Conference: Electrical, Optical, and Magnetic Properties of Organic Solid-State Materials IV, Boston, MA, (US), 12/01/1997--12/05/1997; Other Information: PBD: 1998; Related Information: In: Electrical, optical, and magnetic properties of organic solid-state materials IV. Materials Research Society, symposium proceedings Volume 488, by Reynolds, J.R.; Jen, A.K.Y.; Rubner, M.F.; Chiang, L.Y.; Dalton, L.R. [eds.], 977 pages.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; OPTICAL PROPERTIES; MICROSTRUCTURE; SYNTHESIS; POLYCYCLIC AROMATIC AMINES; ANILINE; LIGHT EMITTING DIODES; FILMS; SPECTROSCOPY; MICROSCOPY; EXPERIMENTAL DATA

Citation Formats

Advincula, R C, Knoll, W, Frank, C W, Roitman, D, Moon, R, and Sheats, J. Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization[Polymer Light Emitting Diodes]. United States: N. p., 1998. Web.
Advincula, R C, Knoll, W, Frank, C W, Roitman, D, Moon, R, & Sheats, J. Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization[Polymer Light Emitting Diodes]. United States.
Advincula, R C, Knoll, W, Frank, C W, Roitman, D, Moon, R, and Sheats, J. Wed . "Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization[Polymer Light Emitting Diodes]". United States.
@article{osti_20034079,
title = {Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization[Polymer Light Emitting Diodes]},
author = {Advincula, R C and Knoll, W and Frank, C W and Roitman, D and Moon, R and Sheats, J},
abstractNote = {The fabrication and characterization of polyaniline (PANI) derivatives deposited on ITO coated glass is investigated as possible hole injection layers for MEH-PPV based polymer light emitting diode (PLED) devices. This involved multilayer ordering by the alternate polyelectrolyte adsorption of polyaniline and sulfonated polyaniline with an oppositely charged polyelectrolyte from solution. A combination of spectroscopic and microscopic techniques was utilized to determine the layer ordering, film structure, morphology, and homogeneity. The deposition process generally showed a linear behavior for all pairs as shown by ellipsometry and UV-vis spectroscopy. However, surface plasmon spectroscopy (SPS) and AFM revealed that thicker films are accompanied by increased surface roughness regardless of concentration. Comparison in performance was made between bare ITO and PANI or SPANI coated devices. Initial investigations of PLED performance showed significant improvements in lifetime and efficiency compared to bare ITO.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {7}
}

Conference:
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