[14p-302-1~17] 12.4 Organic light-emitting devices and organic transistors

▲ [14p-302-13] Fivefold Enhancement in the Stability of Organic Light Emitting Diodes with the Addition of a ZAO-based Non-evaporable Getters Pumps

〇(M2)Duy Cong Le¹, Shiho Oyama¹, Enrico Maccallini², Marco Urbano², Tommaso Porcelli², Fabrizio Siviero², Heisuke Sakai¹, Hideyuki Murata¹ (1.Japan Adv. Inst. of Sci. and Tech., 2.SAES Getters S.p.A)

Keywords:stability, residual gasses, non-evaporable getters pumps

The intrinsic degradation of organic light emitting diodes (OLEDs) can be attributed to the striking of residual gasses to substrates during the fabrication process. To further evacuation the residual gasses in an evaporation chamber, non-evaporable getters (NEG) pumps were added along with a turbo molecular pump (TMP). In this study, we demonstrate a fivefold enhancement in the initial device lifetime of the devices fabricated with a combination of TMP and NEG pumps for the first time.