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http://dx.doi.org/10.4313/JKEM.2016.29.8.489

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

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.)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.29, no.8, 2016 , pp. 489-493 More about this Journal
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
Laser sealing; Glass frit; Glass composition; Adhesive; XPS;
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