Effects of plasma pretreatment on silicon nitride barrier films on polycarbonate substrates

被引：46
作者：
Chen, T. N.
Wuu, D. S.
Wu, C. C.
Chiang, C. C.
Lin, H. B.
Chen, Y. P.
Horng, R. H.
机构：
[1] Natl Chung Hsing Univ, Dept Mat Engn, Taichung 402, Taiwan
[2] Natl Chung Hsing Univ, Inst Precis Engn, Taichung 402, Taiwan
来源：
THIN SOLID FILMS | 2006年 / 514卷 / 1-2期
关键词：
silicon nitride; polycarbonate; plasma treatment; permeation;
D O I：
10.1016/j.tsf.2006.02.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Silicon nitride (SiNx) films deposited on Ar, N-2, and O-2 plasma-treated polycarbonate (PC) substrates have been investigated for transparent barrier applications. The details on different gas effects on PC surface and SiNx/PC properties were investigated in terms of the contact angle, free energy, roughness, adhesion, transmittance, water vapor transmission rate ( WVTR) and oxygen transmission rate (OTR). It was found that both Ar and N-2 plasma could improve the adhesion between SiNx films and PC substrates. When the roughness of plasma-treated PC substrates was decreased from 1.71 nm to 0.89 nm, the OTR data of SiNx/PC samples after 6000 times bending test was decreased from 0.61 to 0.1 cm(3)/m(2)/day. Moreover, the transmittance and permeation results of SiN,/PC plasma-treated samples also show great dependence. After Ar plasma treatment for 60 s, the WVTR and OTR of the 50-nm-thick SiNx barrier coating on PC substrate after 6000 times bending test can decrease to a value of near 0.01 g/m(2)/day and 0.1 cm(3)/m(2)/day, respectively. This result indicates that the SiNx films on Ar plasma-treated PC substrates have high potential for flexible organic light-emitting diode applications. (c) 2006 Elsevier B.V All rights reserved.
引用
收藏
页码：188 / 192
页数：5
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