EFFECTS OF SUBSTRATE AND EXPERIMENTAL CONDITIONS ON THE FABRICATION OF WELL-ORDERED SILICA PARTICULATE LANGMUIR–BLODGETT FILMS

Yudi Guo, Dongyan Tang () and Shuo Gu
Additional contact information
Yudi Guo: Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin 150001, China
Dongyan Tang: Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin 150001, China
Shuo Gu: Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052, USA

Surface Review and Letters (SRL), 2013, vol. 20, issue 03n04, 1-9

Abstract: The dependence of particulate Langmuir–Blodgett (LB) monolayer quality on the surface nature of the substrate was investigated by pretreating the substrates with different methods, and the optimal withdrawal speed was determined by detecting the quality of particulate monolayers deposited at different withdrawal speeds. Furthermore, the effects of stearic acid (SA) concentration on the quality of particulate monolayers were discussed. Results indicated that surface amination would favor the transfer of the floating particulate monolayer from the interface to the substrate, which would be attributed to the formation of chemical bonds between the–NH2groups on the substrate surface and the functional groups of–COOHandSi–OHgroups on surfaces of particles floating at the interface. And the withdrawal speed of 1 mm ⋅ min-1was appropriate for the fabrication of high-quality particulate LB monolayer because low withdrawal speed can offer sufficient time to form chemical bonds and expel the subphase from the substrate. Additionally, SEM images illustrated that the SA concentration of 0.40 mg ⋅ mL-1was suitable for the fabrication of well-ordered particulate LB monolayers composed by the particles of 380 nm.

Keywords: Withdrawal speed; surface amination; Langmuir–Blodgettt technique; monodisperse silica particle (search for similar items in EconPapers)
Date: 2013
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X1350039X
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:20:y:2013:i:03n04:n:s0218625x1350039x

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X1350039X

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().