Channel cracks in a hermetic coating consisting of organic and inorganic layers

被引:45
作者
Cordero, Nicolas [1 ]
Yoon, Juil [1 ]
Suo, Zhigang [1 ]
机构
[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
基金
美国国家科学基金会;
关键词
D O I
10.1063/1.2713134
中图分类号
O59 [应用物理学];
学科分类号
摘要
Flexible electronic devices often require hermetic coatings that can withstand applied strains. This letter calculates the critical strains for various configurations of channel cracks in a coating consisting of organic and inorganic layers. The authors show that the coating can sustain the largest strain when the organic layer is of some intermediate thicknesses. (c) 2007 American Institute of Physics.
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页数:3
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共 21 条
[1]   The role of initial flaw size, elastic compliance and plasticity in channel cracking of thin films [J].
Ambrico, JM ;
Begley, MR .
THIN SOLID FILMS, 2002, 419 (1-2) :144-153
[2]  
[Anonymous], 2005, China Particuology
[3]   Degradation processes at the cathode/organic interface in organic light emitting devices with Mg:Ag cathodes [J].
Aziz, H ;
Popovic, Z ;
Tripp, CP ;
Hu, NX ;
Hor, AM ;
Xu, G .
APPLIED PHYSICS LETTERS, 1998, 72 (21) :2642-2644
[4]   CRACKING OF THIN BONDED FILMS IN RESIDUAL TENSION [J].
BEUTH, JL .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1992, 29 (13) :1657-1675
[5]   Thin film encapsulated flexible organic electroluminescent displays [J].
Chwang, AB ;
Rothman, MA ;
Mao, SY ;
Hewitt, RH ;
Weaver, MS ;
Silvernail, JA ;
Rajan, K ;
Hack, M ;
Brown, JJ ;
Chu, X ;
Moro, L ;
Krajewski, T ;
Rutherford, N .
APPLIED PHYSICS LETTERS, 2003, 83 (03) :413-415
[6]  
Crawford GP, 2005, WILEY-SID SER DISPL, P1, DOI 10.1002/0470870508
[7]  
He J, 2004, AIP CONF PROC, V741, P3
[8]   TUNNELING CRACKS IN CONSTRAINED LAYERS [J].
HO, S ;
SUO, Z .
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1993, 60 (04) :890-894
[9]   Channel-cracking of thin films with the extended finite element method [J].
Huang, R ;
Prévost, JH ;
Huang, ZY ;
Suo, Z .
ENGINEERING FRACTURE MECHANICS, 2003, 70 (18) :2513-2526
[10]   MIXED-MODE CRACKING IN LAYERED MATERIALS [J].
HUTCHINSON, JW ;
SUO, Z .
ADVANCES IN APPLIED MECHANICS, VOL 29, 1992, 29 :63-191