LiF/Al cathodes and the effect of LiF thickness on the device characteristics and built-in potential of polymer light-emitting diodes

Autor:	Richard H. Friend, D. J. Lacey, I. S. Millard, Franco Cacialli, J. H. Burroughes, Thomas M. Brown
Rok vydání:	2000
Předmět:	Conductive polymer Materials science Physics and Astronomy (miscellaneous) business.industry chemistry.chemical_element Electroluminescence Cathode law.invention Organic semiconductor chemistry law Aluminium Optoelectronics Spectroscopy business Diode Light-emitting diode
Zdroj:	Scopus-Elsevier
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1323741
Popis:	We report the characteristics of a series of polymer light-emitting diodes, fabricated with LiF/Al cathodes and differing only by the thickness of the LiF interlayer (0 nm⩽d⩽11 nm). Electroabsorption studies of the internal electrostatic potential give direct evidence of a sizable reduction of the cathodic barrier height brought about by the LiF films. These results also correlate with photoemission experiments [S. E. Shaheen, G. E. Jabbour, M. M. Morrell, Y. Kawabe, B. Kippelen, N. Peyghambarian, M. F. Nabor, R. Schlaf, E. A. Mash, and N. R. Armstrong, J. Appl. Phys. 84, 2324 (1998)] and with the electroluminescence performance of the diodes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0161f94f991e6e15e3aae9167bab8f6b https://doi.org/10.1063/1.1323741 Zobrazit plný text záznamu