화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.11, No.4, 408-413, June, 2000
Export Citation
고분자 정공 전달체 PDPMA와 Alq3의 블렌드를 사용한 유기 발광소자의 제작 및 광·전기적 특성
Fabricatin and Optoelectrical Characteristiccs of Organic Electroluminescent Device using Blend of PDPMA as a Polymer Hole Transport Material and Alq3
이창호, 김유진1, 오세용†
  • 서강대학교 화학공학과, 서울 121-742
  • 1홍익대학교 기초과학과, 서울 121-791
Chang Ho Lee, Eugene Kim1, and Se Young Oh†
  • Department of Chemical Engineering, Sogang University, Seoul 121-742, Korea
  • 1Department of Applied Science, School of Engineering, Hongik University, Seoul 121-791, Korea
E-mail:
초록
기존의 적충형 저분자 유기 발광소자의 내구성을 향상시키기 위해 poly[N-(p-diphenylamine) phenylmethacrylamide](PDPMA) 고분자 정공 전달체와 tris(8-quinolinolato) aluminum(Alq3)저분자 발광물질의 블렌드를 사용하여 새로운 개념의 유기 발광소자를 제작하였다. PDPMA-Alq3 블렌드 필름은 스핀코팅에 의해 제조하였다. PDPMA-Alq3 블렌드의 photoluminescence(PL) 강도는 Alq3의 함유량 증가에 따라 증가하다가 30 mol%에서 최고의 값에 도달하였다. ITO/PDPMA-Alq3 블렌드 (7:3)/Al으로 구성되는 유기 발광소자는 6V의 낮은 구동전압을 나타냈으며 14V에서 1200 cd/㎡ 의 밝은 녹색빛을 발광하였다. 특히 대기중에서 PDPMA-Alq3 블렌드의 표면형태에 있어서 큰 변화는 관찰되지 않았다.
In this study a novel organic electroluminescent (EL) device was fabricated using blend of poly[N-(p-diphenylamine) phenylmethacrylamide](PDPMA) as a polymer hole transport material and tris(8-quinolinolato) aluminum (Alq3) as an emitting material in order to improve the durability of conventional multilayered organic EL device prepared with low molecular weight hydrocarbon compounds. The PDPMA-Alq3 blend film was prepared by spin coating method. Photoluminescene (PL) intensity of PDPMA-Alq3 blend increased with increasing the content of Alq3 and reached the maximum value at a 30mol% of Alq3. The prepared organic EL device consisted of ITO/PDPMA-Alq3 blend (7:3)/Al exhibited a low drive voltage of 6 V and emitted green light with high brightness of 1200 cd/㎡ at a DC 14V. Especially, no significant change in surface morphology of PDPMA-Alq3 blend was observed.
Keywords:organic EL device;PDPMA-Alq3 blend;drive voltage;green light;surface morphology
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