Paper Title:
Deposition Characteristics of Direct-Write Suspended Micro/Nano-Structures
  Abstract

Direct-Write (DW) technology based on Near-Field Electrospinning (NFES) was introduced to fabricate suspended micro/nano-structure on pattern substrate, and the deposition behaviors of DWed structure under different collector motion speed (CMS) were discussed to improve control of DW technology based on NFES. Deposit point of DWed structure on the substrate can be controlled accurately under the observation of microscope, and position error of micro/nano-structure is less than 5µm. When CMS is compatible with the electrospinning speed, straight line micro/nano-structure can be direct-written across micro-trenches with width of 5~40µm or to bridge two micro-pillars with diameter of 10µm. Due to the water evaporation and surface tension force, DWed structures suspended in the air would shrink smaller compared with that deposited on the top surface of pattern. The shrink ratio of micro-structure is higher than nano-structure and the shrink ratio decreases with the solution concentration increases. When the CMS is lower than electrospinning speed, the electrostatic force and elastic force would play a more prominent role on the deposition behavior of DWed structure. The electrical field strength on the top surface of pattern is higher than the space between two patterns, DWed thin film would deposit along the trip pattern and nanofiber would prefer to aggregate on the top surface of pattern under electrostatic force. When solution concentration is lower than 18%, nanofiber aggregate on the pattern would coagulate to form polymer bundle.

  Info
Periodical
Advanced Materials Research (Volumes 60-61)
Edited by
Xiaohao Wang
Pages
439-444
DOI
10.4028/www.scientific.net/AMR.60-61.439
Citation
G. F. Zheng, L. Y. Wang, H. L. Wang, D. H. Sun, W. W. Li, L. W. Lin, "Deposition Characteristics of Direct-Write Suspended Micro/Nano-Structures", Advanced Materials Research, Vols. 60-61, pp. 439-444, 2009
Online since
January 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kenji Toda, Masafumi Hosoume, Kenji Sato, Kazuyoshi Uematsu, Mineo Sato, Akira Watanabe, Takehisa Fukui
Abstract:We report synthesis of well-grown blue phosphor powder, CaMgSi2O6:Eu2+, from new vapor phase method (Flash creation method) derived...
107
Authors: Ming Xian Liu, Li Hua Gan, Jun Hu, Hong Lai Liu, Long Wu Chen
Abstract:In this paper, we present a novel approach for the synthesis of carbon microspheres via the polymerization of a high internal phase emulsion...
3105
Authors: Si Fang Li, Jean Marie Vianney Mujyambere, Miao Liu
Abstract:Granular carboxymethyl starch (CMS) with high degree of substitution (DS) was synthesized using a modified dry process. The...
306
Authors: Li Hua Tian, Xia Liu, Hui Tao Liu, Yuan Gao
Chapter 4: Micro/Nano Materials
Abstract:Carbonaceous polysaccharide microsphere with strong adsorption ability has been successfully synthesized under hydrothermal conditions, using...
662
Authors: Rizwan Nasir, Hilmi Mukhtar, Maizatul Shima Shaharun, Zakaria Man
Chapter 5: Testing, Analisys and Evaluation of Materials, Improvement of Materials Properties
Abstract:Different compositions of carbon molecular sieve (CMS) were incorporated in polyethersulfone (PES) matrix to fabricate mixed matrix membranes...
869