Probing ferroelectric behaviour in charge-transfer organic meta-nitroaniline / Isakov Dmitry,Vasilev Semen,Gomes Etelvina de Matos,Almeida Bernardo,Shur Vladimir Ya,Kholkin Andrei L. // APPLIED PHYSICS LETTERS. - 2016. - V. 109, l. 16.

ISSN/EISSN:

0003-6951 / 1077-3118

Type:

Article

Abstract:

Potential ferroelectricity in charge-transfer organic materials is often masked by the intrinsic conductivity. Here, we report the compelling evidence of ferroelectricity in organic pi-conjugated meta-nitroaniline (m-NA) crystals as shown by the local electromechanical measurements using the piezoresponse force microscopy (PFM) technique. m-NA is a charge-transfer molecular material with the exceptional optical non-linearity and perceptible conductivity along the crystallographic polar axis. While standard Sawyer-Tower measurements revealed an apparently lossy-dielectric hysteresis, The PFM switching spectroscopy indicated clear ferroelectric behaviour in this technologically important multifunctional material. Further study of the pyroelectric properties in m-NA crystals confirmed their high spontaneous polarization of 18 mu C/cm(2) at room temperature, comparable to the best known organic ferroelectrics. Published by AIP Publishing.

Author keywords:

PIEZORESPONSE FORCE MICROSCOPY; MOLECULAR-CRYSTALS; THIN-FILMS; GLYCINE; MORPHOLOGY; MNA

DOI:

10.1063/1.4965710

Web of Science ID:

ISI:000386933200030

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT 17
Publisher	AMER INST PHYSICS
Address	1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Language	English
Article-Number	162903
EISSN	1077-3118
Keywords-Plus	PIEZORESPONSE FORCE MICROSCOPY; MOLECULAR-CRYSTALS; THIN-FILMS; GLYCINE; MORPHOLOGY; MNA
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	dmitry.isakov@materials.ox.ac.uk
ResearcherID-Numbers	Vasilev, Semen/L-8334-2016 Kholkin, Andrei/G-5834-2010 Isakov, Dmitry Isakov/A-8110-2013 Shur, Vladimir/J-9078-2015
ORCID-Numbers	Vasilev, Semen/0000-0002-3103-1438 Kholkin, Andrei/0000-0003-3432-7610 Isakov, Dmitry Isakov/0000-0002-3913-8096 de Matos Gomes, Etelvina/0000-0002-0862-1683 Almeida, Bernardo/0000-0001-7604-0111
Funding-Acknowledgement	European Regional Development Fund (ERDF) through Programa Operacional Factores de Competitividade (COMPETE) {[}FCOMP-01-0124-RIDER-014628, FCOMP-01-0124-FEDER-009457]; FCT {[}PTDC/CTMNAN/114269/2009, UID/CTM/50011/2013]; RFBR {[}13-02-90925]; project CICECO-Aveiro Institute of Materials {[}POCI-01-0145-FEDER-007679]; national funds through the FCT/MEC; FEDER; Government of the RF {[}02.A03.21.0006]; {[}Pest-C/CTM/LA0011/013]
Funding-Text	This work was supported by the European Regional Development Fund (ERDF) through Programa Operacional Factores de Competitividade (COMPETE: FCOMP-01-0124-RIDER-014628, FCOMP-01-0124-FEDER-009457)and FCT Grant No. PTDC/CTMNAN/114269/2009), Pest-C/CTM/LA0011/013, and by RFBR Grant No. 13-02-90925. This work was developed within the scope of the project CICECO-Aveiro Institute of Materials (POCI-01-0145-FEDER-007679, FCT Ref, UID/CTM/50011/2013), financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement, and by Government of the RF (Act 211, Agreement 02.A03.21.0006).
Number-of-Cited-References	45
Usage-Count-Last-180-days	5
Usage-Count-Since-2013	12
Journal-ISO	Appl. Phys. Lett.
Doc-Delivery-Number	EA9AT