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이온빔으로 조사된 ITO 전극 표면이 유기 EL 소자성능에 미치는 영향
오재영,주진수,이천안,박병국,김동환,Oh, Jae-young,Joo, Jin-soo,Lee, Chun-An,Park, Byung-Gook,Kim, Dong-hwan 한국재료학회 2003 한국재료학회지 Vol.13 No.3
The influence of on ion beam irradiation to the indium tin oxide (ITO) substrate on the performance of the organic light-emitting diodes (OLEDs) was studied. ITO films were used as the transparent anode of OLEDs with poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV) as a hole-injection/transport layer. Oxygen and argon plasma treatment of ITO resulted in a change in the work function and the chemical composition. For plasma treated ITO anodes, the device efficiency clearly correlated with the value of the work function. We also discussed the implications of our experimental study in relation to the modification of the ITO surface composition, transmittance, reflectance, and water contact angle (WCA).