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P‐158: Improved Electron Injection in Organic Light‐Emitting Diodes Using Samarium Doped Electron Transport Layer
Author(s) -
Kwon Yongwon,
Han Jongseok,
Lee Changhee
Publication year - 2014
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2014.tb00419.x
Subject(s) - samarium , dopant , doping , materials science , layer (electronics) , diode , oled , optoelectronics , electron , metal , light emitting diode , analytical chemistry (journal) , chemistry , inorganic chemistry , nanotechnology , organic chemistry , metallurgy , physics , quantum mechanics
We introduced rare earth metal samarium (Sm) as n‐type dopant, which is less reactive than alkaline metals and has low workfunction. The electrical and optical properties of Sm doped 4,7‐diphenyl‐1,10‐phenanthroline (BPhen) thin films with different concentrations are investigated. We also demonstrated the Sm‐doped BPhen layer can be utilized as an electron injection layer (EIL) for organic light‐emitting diodes.