Lithium ion assisted hydration of metal ions in non-aqueous sol-gel inks for high performance metal oxide thin-film transistors
- Authors
- Park, Jee Ho; Oh, Jin Young; Baik, Hong Koo; Lee, Tae Il
- Issue Date
- 2015
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY C, v.3, no.24, pp.6276 - 6283
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY C
- Volume
- 3
- Number
- 24
- Start Page
- 6276
- End Page
- 6283
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/11928
- DOI
- 10.1039/c5tc00341e
- ISSN
- 2050-7526
- Abstract
- The role of Li ions in lowering the dehydroxylation temperature of non-aqueous sol-gel inks for metal oxide thin film transistors (TFTs) was demonstrated for the first time. As a key mechanism in the lowering of the dehydroxylation temperature, the hydration of sol-gel inks by Li ions, which have a high charge density, was verified through various material analysis tools, such as Raman spectroscopy, TG-DTA, spectroscopic ellipsometry, XPS, and FT-IR. The hydration effect of Li ions on electronic properties was confirmed. This was done by evaluating the electrical properties of metal oxide TFTs that were fabricated at 300 degrees C using various kinds of sol-gel inks with and without Li ions. The results revealed that the dehydroxylation temperature was typically lowered by about 20 to 50 degrees C with the addition of Li ions to various kinds of non-aqueous sol-gel inks. Moreover, the Li-added metal oxide TFTs had mobilities that were several times higher than those of their undoped counterparts.
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Collections - 공과대학 > 신소재공학과 > 1. Journal Articles
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