2024-03-28T23:37:29Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/532912022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Estimation of Gas Permeation Characteristics of Ultrahigh Barrier Edge Sealing Materials from Asymptotic Solution of Diffusion EquationShimada, ToshihiroYanase, TakashiNagahama, TaroKanno, Toshiyuki420Materials and structures for water vapor barrier sealing are now actively studied, as the commercialization of organic electronic devices has become a reality. In this paper, we focus on the edge sealing barriers, in which diffusion plays an essential role. In the past, the diffusion-limited gas barrier properties were analyzed in the steady-state approximation, which is never reached within the device lifetime in the application for organic electronics. We analyze them using a simple analytical model. The diffusion before reaching the steady state is a strongly non-linear process, as is well known, and the length scale of approximately 1–10 mm is very important when a practical polymer resin is used for the edge seal.The Japan Society of Applied PhysicsJournal Articleapplication/pdfhttp://hdl.handle.net/2115/53291https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/53291/3/JJAP_barrier_calc_rev2_after_E.pdf0021-49221347-4065AA12295836Japanese Journal of Applied Physics5205052013-05enginfo:doi/10.7567/JJAP.52.05DA12© 2013 The Japan Society of Applied Physicsauthor