Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization

R. C. Advincula, W. Knoll, C. W. Frank, D. Roitman, R. Moon, J. Sheats

Research output: Contribution to journalArticle

4 Citations (Scopus)

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 poyaniline with an oppositely charged polyelectrolyte from solution. A combination of spectroscopic and microscopic techniques was utilized to determine the layer ordering, fill 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.

Original languageEnglish
Pages (from-to)115-120
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume488
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Polyaniline
ITO (semiconductors)
Light emitting diodes
Polymers
light emitting diodes
Polyelectrolytes
Derivatives
Adsorption
adsorption
polymers
Ellipsometry
Ultraviolet spectroscopy
Thick films
spectroscopy
ellipsometry
thick films
homogeneity
Multilayers
surface roughness
Surface roughness

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Advincula, R. C., Knoll, W., Frank, C. W., Roitman, D., Moon, R., & Sheats, J. (1997). Polymer layer ordering of polyaniline derivatives in PLED devices: Surface adsorption and characterization. Materials Research Society Symposium - Proceedings, 488, 115-120.

Polymer layer ordering of polyaniline derivatives in PLED devices : Surface adsorption and characterization. / Advincula, R. C.; Knoll, W.; Frank, C. W.; Roitman, D.; Moon, R.; Sheats, J.

In: Materials Research Society Symposium - Proceedings, Vol. 488, 1997, p. 115-120.

Research output: Contribution to journalArticle

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. In: Materials Research Society Symposium - Proceedings. 1997 ; Vol. 488. pp. 115-120.
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