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Semi‐transparent polymer light emitting diodes with multiwall carbon nanotubes as cathodes
Author(s) -
Oliva Jorge,
Papadimitratos Alexios,
de la Rosa Elder,
Zakhidov Anvar
Publication year - 2014
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201431354
Subject(s) - carbon nanotube , materials science , cathode , fabrication , diode , optoelectronics , oled , layer (electronics) , brightness , polymer , light emitting diode , nanotechnology , composite material , optics , chemistry , medicine , alternative medicine , physics , pathology
Semi‐transparent polymer light emitting diodes (PLEDs) with double side emission using multiwall carbon nanotubes (MWCNT) sheets as top transparent cathode are described. The combination of an effective electron injection layer (EIL) and a hole blocking layer (HBL): PFN/Cs 2 CO 3 , allowed an enhancement of the electron injection from the MWCNT sheets. Those semitransparent devices exhibited a brightness and an efficiency of 220 Cd/m 2 and 0.54 Cd/A, respectively, which were measured on the glass side. Our results indicate that the new architecture of laminated top‐MWCNT could be useful for the development of transparent displays using a vacuum free simple dry fabrication process.