4.8 Article

Inkjet-Assisted Layer-by-Layer Printing of Encapsulated Arrays

期刊

ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 6, 页码 3102-3110

出版社

AMER CHEMICAL SOC
DOI: 10.1021/am3004544

关键词

inkjet printing; encapsulation; patterning; layer-by-layer assembly; hydrogen bonding; thin film

资金

  1. Air Force Office Of Scientific Research [FA9550-11-1-0233, FA9550-09-1-0162]
  2. U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-09ER46604]
  3. SCG Paper PLC

向作者/读者索取更多资源

We present the facile fabrication of hydrogen-bonded layer-by-layer (LbL) microscopic dot arrays with encapsulated dye compounds. We demonstrate patterned encapsulation of Rhodamine dye as a model compound within poly(vinylpyrrolidone)/poly(methacrylic acid) (PVPON/PMAA) LbL dots constructed without an intermediate washing step. The inkjet printing technique improves encapsulation efficiency, reduces processing time, facilitates complex patterning, and controls lateral and vertical dimensions with diameters ranging from 130 to 35 mu m (mostly controlled by the droplet size and the substrate hydrophobicity) and thickness of several hundred nanometers. The microscopic dots composed of hydrogen-bonded PVPON/PMAA components are also found to be stable in acidic solution after fabrication. This facile, fast, and sophisticated inkjet encapsulation method can be applied to other systems for fast fabrication of large-scale, high-resolution complex arrays of dye-encapsulated LbL dots.

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