Title :
Patterning and nanoscale characterization of ferroelectric amino acid beta-glycine
Author :
Seyedhosseini, E. ; Kholkin, A.L. ; Vasileva, D. ; Nuraeva, A. ; Vasilev, S. ; Zelenovskiy, P. ; Shur, V.Ya.
Author_Institution :
Dept. of Mater. & Ceramic Eng., Univ. of Aveiro, Aveiro, Portugal
Abstract :
The formation of self-organized micro- and nano-islands of beta-glycine prepared by spin-coating is observed. It is shown that the islands are very stable and possess apparent piezoelectric and ferroelectric properties studied in detail by Piezoresponse Force Microscopy. The micro-Raman studies are conducted to confirm the crystallographic preferred orientation and formation of β-phase. The polarization reversal of individual ferroelectric islands is demonstrated by application of the relatively small bias voltage.
Keywords :
Raman spectra; crystal orientation; dielectric polarisation; ferroelectricity; island structure; nanofabrication; nanopatterning; nanostructured materials; organic compounds; piezoelectricity; self-assembly; spin coating; texture; β-phase formation; apparent piezoelectric properties; bias voltage; crystallographic preferred orientation; ferroelectric amino acid beta-glycine; ferroelectric islands; microRaman spectroscopy; nanoscale characterization; piezoresponse force microscopy; polarization reversal; self-organized microisland formation; self-organized nanoisland formation; spin-coating; Films; Force; Microscopy; Nanoscale devices; Polymers; Substrates; Switches; Glycine; ferroelectric; self-assembly;
Conference_Titel :
Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop (ISAF/ISIF/PFM), 2015 Joint IEEE International Symposium on the
Conference_Location :
Singapore
DOI :
10.1109/ISAF.2015.7172707
