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The work function of doped polyaniline nanoparticles observed by Kelvin probe force microscopy

Authors
 Jinsung Park  ;  Doyeon Bang  ;  Kuewhan Jang  ;  Seungjoo Haam  ;  Jaemoon Yang  ;  Sungsoo Na 
Citation
 Nanotechnology, Vol.23(36) : 365705-365705, 2012 
Journal Title
 Nanotechnology 
ISSN
 0957-4484 
Issue Date
2012
Abstract
The work function of polyaniline nanoparticles in the emeraldine base state was determined by Kelvin probe force microscopy to be ~270 meV higher than that of similar nanoparticles in the emeraldine salt state. Normal tapping mode atomic force microscopy could not be used to distinguish between the particles due to their similar morphologies and sizes. Moreover, other potential measurement systems, such as using zeta potentials, were not suitable for the measurement of surface charges of doped nanoparticles due to their encapsulation by interfering chemical groups. Kelvin probe force microscopy can be used to overcome these limitations and unambiguously distinguish between the bare and doped polyaniline nanoparticles.
Full Text
http://iopscience.iop.org/0957-4484/23/36/365705/
DOI
10.1088/0957-4484/23/36/365705
Appears in Collections:
1. Journal Papers (연구논문) > 5. Research Institutes (연구소) > Yonsei Integrative Research Institute for Cerebral & Cardiovascular Disease (뇌심혈관질환융합연구사업단)
Yonsei Authors
양재문(Yang, Jae Moon) ORCID logo https://orcid.org/0000-0001-7365-0395
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/91492
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