46 0

Reduced water vapor transmission rates of low-temperature-processed and sol-gel-derived titanium oxide thin films on flexible substrates

Title
Reduced water vapor transmission rates of low-temperature-processed and sol-gel-derived titanium oxide thin films on flexible substrates
Author
장재영
Keywords
Sol-gel; TiOx film; WVTRs; Polymeric substrates; Ca corrosion test
Issue Date
2016-09
Publisher
ELSEVIER SCIENCE BV
Citation
ORGANIC ELECTRONICS, v. 36, Page. 133-139
Abstract
Sol-gel-derived, crack-free, and condensed TiOx thin films with improved barrier properties were successfully fabricated on polymeric substrates with a simple two-step heat treatment at low temperatures. To assess the barrier properties of the TiOx thin films, Ca corrosion tests were conducted and their water vapor transmission rates (WVTRs) were measured. We found that the two-step heat treatment (at 45 degrees C for 90 min and 110 degrees C for 60 min) produces a close-packed TiOx structure that substantially reduces the WVTRs of the coated polymeric substrates. The WVTRs of 86 nm thick TiOx thin films on polyethylene naphthalate (PEN) substrates at a relative humidity (RH) of 90% were found to be 0.133 g m(-2) day(-1) at 38 degrees C and 0.0387 g m(-2) day(-1) at 25 degrees C. In addition, the WVTR value of the TiOx thin films on PEN substrates are stable with respect to bending: it was found to increase by only similar to 13% after 100 repetitions of bending with a 20 mm radius. (C) 2016 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S1566119916302440?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/76714
ISSN
1566-1199; 1878-5530
DOI
10.1016/j.orgel.2016.05.042
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE