Raman Scattering from Organic Light Emitting Diodes

Autor:	J. G. Keeth, R. E. Giedd, Suchismita Guha, Ted Kehl, Kartik Ghosh, Mohammad Arif
Rok vydání:	2005
Předmět:	Materials science business.industry Analytical chemistry Capacitance Cathode law.invention Organic semiconductor symbols.namesake law OLED symbols Optoelectronics business Raman spectroscopy Raman scattering Light-emitting diode Voltage
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/1.1994486
Popis:	We present Raman studies from working organic light emitting diodes (OLEDs) fabricated from a single layer of para‐hexaphenyl (PHP). The OLEDs were fabricated on patterned ITO substrates with Al cathode. The Raman intensity ratio, I1280/I1220, increases with current injection. This is interpreted in terms of a conformational change where the phenyl rings become more aromatic (benzenoid) upon charge injection. Further, capacitance vs. voltage measurements indicate the presence of interface states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::666b0691bcbe37d1f9580e7a1d23fc55 https://doi.org/10.1063/1.1994486 Zobrazit plný text záznamu