Influence of the Temperature as an Environmental Factor on the Electrophysical Behavior of Flexible Polymeric Luminescent Devices. (10th September 2014)

• Record Type: Journal Article
• Authors: Aleksandrova, Mariya
• Other Names: Dowling Denis Academic Editor.
• Is Part Of: Journal of coatings. Volume 2014(2014)
• Publication Date: 2014-09-10
• Subjects: Coatings -- Periodicals; Paint -- Periodicals; Coatings; Paint; Periodicals; Electronic journals; 667.9
• DOI: 10.1155/2014/437302
• Languages: English
• ISSNs: 2356-7236

Abstract

Abstract : The effect of operational temperature on the electrophysical properties of polymer based electroluminescent structures is examined. For this purpose thin film of light-emitting semiconductor polyphenylenevinylene derivative is deposited between two indium-tin oxide (ITO) electrodes. DC current-voltage ( I-V ) characteristics of the fabricated devices ITO/polyphenylenevinylene derivative PPV-D/ITO are measured at varying ambient temperatures, ranging from room temperature (25°C) to 70°C. Several important electrical parameters like a trap factor, traps activation energy distribution, free carriers' density, trapped carriers density, and effective mobility are estimated from measured temperature dependent I-V curves. Such analysis of the charge transport process in polymer devices may give information needed for optimization of the existing structures.