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49.2: A Study on Electron‐injecting and Surface‐modifying Layer for Transparent Organic Light Emitting Diodes
Author(s) -
Kim Gyeong Woo,
Son Young Hoon,
Kim Gyeong Heon,
Kwon Jang Hyuk
Publication year - 2013
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.2168-0159.2013.tb06304.x
Subject(s) - cathode , materials science , transmittance , oled , optoelectronics , sheet resistance , diode , layer (electronics) , refractive index , electron , light emitting diode , optics , nanotechnology , chemistry , physics , quantum mechanics
We present highly transparent organic light emitting diodes (TOLED) with new transparent cathode structures. This TOLED has ∼71.7% transmittance at 550 nm including the general glass encapsulation. Our transparent cathode stacks (organic layers / cathode) show 91.2% transmittance at 550 nm and low sheet resistance (5.4Ω/□). Such excellent performances are attributed to a new good electron injection system, flat surface morphology of Ag layer, and high refractive index capping layer of WO 3 .