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Effect of V2O5 Content and Pre-Sintering Atmosphere on Adhesive Property of Glass Frit for Laser Sealing of OLED

OLED 레이저 실링용 글라스 프릿에서 V2O5 함량 및 가소성 분위기가 접합 특성에 미치는 영향

  • Jeong, HyeonJin (Optical & Display Material Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Mijai (Optical & Display Material Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Youngjin (Optical & Display Material Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Kim, Jin-Ho (Optical & Display Material Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Jeon, Dae-Woo (Optical & Display Material Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Hwang, Jonghee (Optical & Display Material Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Jungsoo (R & D Center, Bass Co., Ltd.) ;
  • Yang, Yunsung (R & D Center, Bass Co., Ltd.) ;
  • Youk, Sookyung (R & D Center, Bass Co., Ltd.) ;
  • Park, Tae-Ho (R & D Center, Bass Co., Ltd.) ;
  • Moon, Yun-Gon (R & D Center, Axel Co., Ltd.)
  • 정현진 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 이미재 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 이영진 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 김진호 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 전대우 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 황종희 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 이정수 ((주) 베이스 R & D 센터) ;
  • 양윤성 ((주) 베이스 R & D 센터) ;
  • 육수경 ((주) 베이스 R & D 센터) ;
  • 박태호 ((주) 베이스 R & D 센터) ;
  • 문윤곤 ((주) 악셀 R & D 센터)
  • Received : 2016.07.05
  • Accepted : 2016.07.24
  • Published : 2016.08.01

Abstract

In this study, the effect of vanadium oxide ($V_2O_5$) content and pre-sintering atmosphere on sealing property of glass frit that consisted of $V_2O_5-BaO-ZnO-P_2O_5-TeO_2-CuO-Fe_2O_3-SeO_2$ was investigated by XPS (X-ray photoelectron spectroscopy). The content of V2O5 was changed to 15, 30, and 45 mol%, and the pre-sintering was carried out in air and $N_2$ condition, respectively. XPS analysis conducted before and after laser irradiation with identical sample. Before laser treatment, glass frits that were pre-sintered at air condition showed both $V^{4+}$ and $V^{5+}$, but the valence state was changed to $V^{5+}$ after laser irradiation when the glass frits contained 30 and 45 mol% $V_2O_5$; this change led to non-adhesive property. On the other hand, glass frits that were pre-sintered at $N_2$ condition exhibited only $V^{4+}$ and it showed fine adhesion irrespective of the $V_2O_5$ content. As a result, the existence of $V^{4+}$ seems to be a major factor for controlling the adhesive property of glass frit for laser sealing.

Keywords

References

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