authors |
Kalinin, A; Atepalikhin, V; Pakhomov, O; Kholkin, AL; Tselev, A |
nationality |
International |
journal |
ULTRAMICROSCOPY |
author keywords |
Atomic force microscopy; Piezoresponse force microscopy; Peptide tubes; Nondestructive scanning probe imaging; Young's modulus |
keywords |
NANOSTRUCTURES; FABRICATION; ARRAYS |
abstract |
Nondestructive scanning probe microscopy of fragile nanoscale objects is currently in increasing need. In this paper, we report a novel atomic force microscopy mode, HybriD Piezoresponse Force Microscopy (HD-PFM), for simultaneous nondestructive analysis of piezoresponse as well as of mechanical and dielectric properties of nanoscale objects. We demonstrate this mode in application to self-assembled diphenylalanine peptide micro- and nanotubes formed on a gold-covered substrate. Nondestructive in- and out-of-plane piezoresponse measurements of tubes of less than 100 nm in diameter are demonstrated for the first time. High-resolution maps of tube elastic properties were obtained simultaneously with HD-PFM. Analysis of the measurement data combined with the finite-elements simulations allowed quantification of tube Young's modulus. The obtained value of 29 +/- 1 GPa agrees well with the data obtained with other methods and reported in the literature. (C) 2017 Elsevier B.V. All rights reserved. |
publisher |
ELSEVIER SCIENCE BV |
issn |
0304-3991 |
year published |
2018 |
volume |
185 |
beginning page |
49 |
ending page |
54 |
digital object identifier (doi) |
10.1016/j.ultramic.2017.11.009 |
web of science category |
Microscopy |
subject category |
Microscopy |
unique article identifier |
WOS:000423963900008
|