期刊
ADVANCED FUNCTIONAL MATERIALS
卷 21, 期 18, 页码 3546-3553出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201100323
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资金
- MKE/KEIT [10030559]
- Basic Research Program [2011-0000129, 2011-0018113]
- Korea government (MEST) [2010-0019086]
- LG Display
- Korea Evaluation Institute of Industrial Technology (KEIT) [10030559] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2010-0019086, 2011-0018113] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Flexible transparent thin-film transistors (TTFTs) have emerged as next-generation transistors because of their applicability in transparent electronic devices. In particular, the major driving force behind solution-processed zinc oxide film research is its prospective use in printing for electronics. Since the patterning that prevents current leakage and crosstalk noise is essential to fabricate TTFTs, the need for sophisticated patterning methods is critical. In patterning solution-processed ZnO thin films, several points require careful consideration. In general, as these thin films have a porous structure, conventional patterning based on photolithography causes loss of film performance. In addition, as controlling the drying process is very subtle and cumbersome, it is difficult to fabricate ZnO semiconductor films with robust fidelity through selective printing or patterning. Therefore, we have developed a simple selective patterning method using a substrate pre-patterned through bond breakage of poly(methyl methacrylate) (PMMA), as well as a new developing method using a toluene-methanol mixture as a binary solvent mixture.
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