Strong piezoelectricity in [H-beta-(2-pyridyl)-Ala-OH][BF4] and [H-beta-(2-pyridyl)-Ala-OH][ClO4] - new amino acid based hybrid crystals

Autor: Anna Gągor, Andrei L. Kholkin, M. Wojtaś
Jazyk: angličtina
Rok vydání: 2016
Předmět:
INFRARED IMAGING
Materials science
Piezoelectric coefficient
CRYSTAL MICROSTRUCTURE
DIPHENYLALANINE
Lithium niobate
HYDROPHOBIC DIPEPTIDES
NANOGENERATOR
NANOTUBES
Context (language use)
02 engineering and technology
Crystal structure
PIEZOELECTRICITY
010402 general chemistry
01 natural sciences
CRYSTAL STRUCTURE
Crystal
chemistry.chemical_compound
PIEZOELECTRIC FORCE MICROSCOPY
AMINO ACIDS
TRANSDUCER MATERIAL
THERMO-GRAVIMETRIC
Materials Chemistry
INTRA-MOLECULAR HYDROGEN BONDS
FERROELECTRICS
INTRAMOLECULAR HYDROGEN BONDING
PIEZOELECTRIC PROPERTY
Hydrogen bond
CRYSTALLOGRAPHY
PEPTIDE NANOSTRUCTURES
FORCE MICROSCOPY
PHENYLALANINE
PIEZOELECTRIC COEFFICIENT
General Chemistry
SINGLE CRYSTALS
PERFORMANCE
BROMIDE
021001 nanoscience & nanotechnology
Piezoelectricity
0104 chemical sciences
Crystallography
chemistry
Intramolecular force
HYDROGEN BONDS
CRYSTALLOGRAPHIC STRUCTURE
0210 nano-technology
Zdroj: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Journal of Materials Chemistry C
Popis: New amino acid based [H-β-(2-pyridyl)-Ala-OH][ClO 4 ] and [H-β-(2-pyridyl)-Ala-OH][BF 4 ] crystals were synthesized and their structure and functional piezoelectric properties were investigated in detail. The former crystallizes in the piezoelectric P2 1 2 1 2 1 space group whereas the latter belongs to the polar P1 space group. Piezoelectric force microscopy (PFM) measurements revealed that the piezoelectric coefficient, d 15 eff, of the [H-β-(2-pyridyl)-Ala-OH][BF 4 ] crystal is more than twice that in the widely used transducer material lithium niobate, LiNbO 3 . The crystal structures of both [H-β-(2-pyridyl)-Ala-OH] derivatives are characterized by inter- and intramolecular hydrogen bond networks that are responsible for a high piezoresponse. The existence of intramolecular hydrogen bonding was confirmed by means of IR measurements. The thermogravimetric (TGA) technique was applied to study the thermal behavior of the title crystals. The piezoelectric properties are discussed in the context of the crystallographic structure and the microstructure of these crystals. © 2016 The Royal Society of Chemistry.
Databáze: OpenAIRE
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