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Spiridonov M, Chouprik A, Mikheev V, Markeev AM, Negrov D. Band Excitation Piezoresponse Force Microscopy Adapted for Weak Ferroelectrics: On-the-Fly Tuning of the Central Band Frequency. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2021; 27:326-336. [PMID: 33750509 DOI: 10.1017/s1431927621000040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
New interest in microscopic studies of ferroelectric materials with low piezoelectric coefficient, $d_{33}^\ast$, has emerged after the discovery of ferroelectric properties in HfO2 thin films, which are the main candidate for the next generation of nonvolatile ferroelectric memory. The study of the microscopic structure of ferroelectric HfO2 capacitors is crucial to get insights into the device behavior and performance. However, a small $d_{33}^\ast$ of ferroelectric HfO2 films leads to a low piezoresponse, especially in band excitation piezoresponse force microscopy (BE-PFM). In this work, we have implemented the BE-PFM technique with an increased scanning rate, thus improving this versatile tool for weak ferroelectrics. The acceleration of measurement was achieved by focusing excitation into a narrow frequency band and tuning the central frequency on-the-fly using an online real-time model estimation by fitting a complex BE response. The tracking of the contact resonance frequency was implemented using a pure mechanical cantilever response acquired in BE atomic force acoustic microscopy. To obtain optimal excitation parameters, we perform statistical analysis by minimizing estimator variance. The measurement precision of several PFM techniques was compared both by the simulation and experimentally using a Hf0.5Zr0.5O2-based ferroelectric capacitor.
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Affiliation(s)
- Maxim Spiridonov
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudny, Moscow Region141700, Russia
| | - Anastasia Chouprik
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudny, Moscow Region141700, Russia
| | - Vitalii Mikheev
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudny, Moscow Region141700, Russia
| | - Andrey M Markeev
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudny, Moscow Region141700, Russia
| | - Dmitrii Negrov
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudny, Moscow Region141700, Russia
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Cruz Valeriano E, Gervacio Arciniega JJ, Enriquez Flores CI, Meraz Dávila S, Moreno Palmerin J, Hernández Landaverde MA, Chipatecua Godoy YL, Gutiérrez Peralta AM, Ramírez Bon R, Yañez Limón JM. Stochastic excitation for high-resolution atomic force acoustic microscopy imaging: a system theory approach. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:703-716. [PMID: 32461872 PMCID: PMC7214876 DOI: 10.3762/bjnano.11.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
In this work, a high-resolution atomic force acoustic microscopy imaging technique is developed in order to obtain the local indentation modulus at the nanoscale level. The technique uses a model that gives a qualitative relationship between a set of contact resonance frequencies and the indentation modulus. It is based on white-noise excitation of the tip-sample interaction and uses system theory for the extraction of the resonance modes. During conventional scanning, for each pixel, the tip-sample interaction is excited with a white-noise signal. Then, a fast Fourier transform is applied to the deflection signal that comes from the photodiodes of the atomic force microscopy (AFM) equipment. This approach allows for the measurement of several vibrational modes in a single step with high frequency resolution, with less computational cost and at a faster speed than other similar techniques. This technique is referred to as stochastic atomic force acoustic microscopy (S-AFAM), and the frequency shifts of the free resonance frequencies of an AFM cantilever are used to determine the mechanical properties of a material. S-AFAM is implemented and compared with a conventional technique (resonance tracking-atomic force acoustic microscopy, RT-AFAM). A sample of a graphite film on a glass substrate is analyzed. S-AFAM can be implemented in any AFM system due to its reduced instrumentation requirements compared to conventional techniques.
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Affiliation(s)
- Edgar Cruz Valeriano
- Universidad Cuauhtémoc. Blvd. Bernardo Quintana A. #229. Fracc. Los Arcos C.P. 76060, Querétaro, Querétaro, México
- CINVESTAV. Libramiento Norponiente #2000 C.P. 76230, Fracc. Real de Juriquilla, Querétaro, Querétaro, México
| | - José Juan Gervacio Arciniega
- CONACYT-Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y Av. 18 sur, Col. San Manuel Ciudad Universitaria, C.P. 72570, Puebla, Puebla, México
| | - Christian Iván Enriquez Flores
- Facultad de Ciencias Físico Matemático, Universidad Autónoma del Estado Chiapas, Carr. Emiliano Zapata Km 8 Tuxtla Gutiérrez, Chiapas C.P. 29050, México
| | - Susana Meraz Dávila
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California. Carretera Ensenada - Tijuana No. 3918, Zona Playitas, CP. 22860, Ensenada, B.C. México
- Centro de Nanociencias y Nanotecnología, UNAM, Km 107 Carretera Tijuana-Ensenada C.P. 22800. Ensenada, Baja California, México
| | - Joel Moreno Palmerin
- Departamento de Minas, Metalurgía y Geología, Universidad de Guanajuato. Ex Hacienda San Matías s/n C.P. 36020. Guanajuato, Guanajuato, México
| | | | | | | | - Rafael Ramírez Bon
- CINVESTAV. Libramiento Norponiente #2000 C.P. 76230, Fracc. Real de Juriquilla, Querétaro, Querétaro, México
| | - José Martín Yañez Limón
- CINVESTAV. Libramiento Norponiente #2000 C.P. 76230, Fracc. Real de Juriquilla, Querétaro, Querétaro, México
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Aguirre-Chagala YE, Altuzar V, León-Sarabia E, Tinoco-Magaña JC, Yañez-Limón JM, Mendoza-Barrera C. Physicochemical properties of polycaprolactone/collagen/elastin nanofibers fabricated by electrospinning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:897-907. [PMID: 28482605 DOI: 10.1016/j.msec.2017.03.118] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/18/2017] [Accepted: 03/15/2017] [Indexed: 01/01/2023]
Abstract
Collagen and elastin are the two most abundant proteins in the human body, and as biomaterials offer fascinating properties to composite materials. More detailed investigations including these biomaterials within reinforced composites are still needed. This report describes physicochemical properties of fibers composed of collagen type I, collagen III, elastin and polycaprolactone (PCL). Prior to the electrospinning process, PCL was functionalized through covalent attachment of -NH2 groups by aminolysis reaction with hexamentilendiamine. The fibers were fabricated by electrospinning technique set up with a non-conventional collector. A morphological comparative study was developed at different rations of collagen type I, observing in some cases two populations of fibers. The diameters and morphology were analyzed by SEM, observing a wide array of nanostructures with diameters of ~310 to 693nm. Chemical characterization was assessed by FT-IR spectroscopy and the functionalized PCL was characterized through ninhydrin assay resulting in 0.36mM NH2/mg fiber. Swelling tests were performed for 24h, obtaining 320% for the majority of the fibers indicating morphological stability and good water uptake. In addition, contact angle analysis demonstrated adequate permeability and differences for each system depending mainly upon the type of biopolymer incorporated and the functionalization of PCL, ranging the values from 108° to 17°. Moreover, differential scanning calorimetry results showed a melting temperature (Tm) of ~60°C. The onset degradation temperatures (Td,onset) ranged between 115 and 148°C, and were obtained by thermogravimetric analysis. The local mechanical properties of individual fibers were quantified by atomic force acoustic microscopy. These results propose that the physicochemical and mechanical properties of these scaffolds offer the possibility for enhanced biological activity Thus, they have a great potential as candidate scaffolds in tissue engineering applications.
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Affiliation(s)
- Yanet E Aguirre-Chagala
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico
| | - Víctor Altuzar
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico; Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla 72570, Mexico
| | - Eleazar León-Sarabia
- CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico
| | - Julio C Tinoco-Magaña
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico
| | - José M Yañez-Limón
- CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico
| | - Claudia Mendoza-Barrera
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico; Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla 72570, Mexico.
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Kimura K, Kobayashi K, Yao A, Yamada H. Visualization of subsurface nanoparticles in a polymer matrix using resonance tracking atomic force acoustic microscopy and contact resonance spectroscopy. NANOTECHNOLOGY 2016; 27:415707. [PMID: 27607548 DOI: 10.1088/0957-4484/27/41/415707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A visualization technique of subsurface features with a nanometer-scale spatial resolution is strongly demanded. Some research groups have demonstrated the visualization of subsurface features using various techniques based on atomic force microscopy. However, the imaging mechanisms have not yet been fully understood. In this study, we demonstrated the visualization of subsurface Au nanoparticles buried in a polymer matrix 900 nm from the surface using two techniques; i.e., resonance tracking atomic force acoustic microscopy and contact resonance spectroscopy. It was clarified that the subsurface features were visualized by the two techniques as the area with a higher contact resonance frequency and a higher Q-factor than those in the surrounding area, which suggests that the visualization is realized by the variation of the contact stiffness and damping of the polymer matrix due to the existence of the buried nanoparticles.
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Affiliation(s)
- Kuniko Kimura
- Department of Electronic Science and Engineering, Kyoto University, Kyoto 615-8510, Japan
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Flores-Ruiz FJ, Espinoza-Beltrán FJ, Diliegros-Godines CJ, Siqueiros JM, Herrera-Gómez A. Atomic force acoustic microscopy: Influence of the lateral contact stiffness on the elastic measurements. ULTRASONICS 2016; 71:271-277. [PMID: 27428309 DOI: 10.1016/j.ultras.2016.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/06/2016] [Accepted: 07/08/2016] [Indexed: 06/06/2023]
Abstract
Atomic force acoustic microscopy is a dynamic technique where the resonances of a cantilever, that has its tip in contact with the sample, are used to quantify local elastic properties of surfaces. Since the contact resonance frequencies (CRFs) monotonically increase with the tip-sample contact stiffness, they are used to evaluate the local elastic properties of the surfaces through a suitable contact mechanical model. The CRFs depends on both, normal and lateral contact stiffness, kN and kS respectively, where the last one is taken either as constant (kS<1), or as zero, leading to uncertainty in the estimation of the elastic properties of composite materials. In this work, resonance spectra for free and contact vibration were used in a finite element analysis of cantilevers to show the influence of kS in the resonance curves due to changes in the kS/kN ratio. These curves have regions for the different vibrational modes that are both, strongly and weakly dependent on kS, and they can be used in a selective manner to obtain a precise mapping of elastic properties.
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Affiliation(s)
- F J Flores-Ruiz
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, km. 107, Carretera Tijuana-Ensenada, 22860 Ensenada, B.C., Mexico; CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico.
| | - F J Espinoza-Beltrán
- CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico
| | - C J Diliegros-Godines
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, km. 107, Carretera Tijuana-Ensenada, 22860 Ensenada, B.C., Mexico
| | - J M Siqueiros
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, km. 107, Carretera Tijuana-Ensenada, 22860 Ensenada, B.C., Mexico
| | - A Herrera-Gómez
- CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico
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Rodríguez-Castellanos W, Flores-Ruiz FJ, Martínez-Bustos F, Chiñas-Castillo F, Espinoza-Beltrán FJ. Nanomechanical properties and thermal stability of recycled cellulose reinforced starch-gelatin polymer composite. J Appl Polym Sci 2014. [DOI: 10.1002/app.41787] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wendy Rodríguez-Castellanos
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) IPN, Unidad Querétaro; Lib. Norponiente 2000, Real de Juriquilla, C.P. 76230 Querétaro Qro México
| | - Francisco Javier Flores-Ruiz
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) IPN, Unidad Querétaro; Lib. Norponiente 2000, Real de Juriquilla, C.P. 76230 Querétaro Qro México
| | - Fernando Martínez-Bustos
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) IPN, Unidad Querétaro; Lib. Norponiente 2000, Real de Juriquilla, C.P. 76230 Querétaro Qro México
| | - Fernando Chiñas-Castillo
- Department of Mechanical Engineering; Instituto Tecnológico de Oaxaca; Oaxaca, Oax. Calz. Tecnológico No. 125, CP. 68030 Oaxaca Oax México
| | - Francisco Javier Espinoza-Beltrán
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) IPN, Unidad Querétaro; Lib. Norponiente 2000, Real de Juriquilla, C.P. 76230 Querétaro Qro México
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Javier FRF, Luis RRJ, Fernando CC, Javier EBF. Resonance tracking atomic force acoustic microscopy quantitative modulus mapping of carbon nanotubes-reinforced acrylonitrile-butadiene-styrene polymer. J Appl Polym Sci 2014. [DOI: 10.1002/app.40628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Reyes-Reyes José Luis
- Department of Mechanical Engineering; Instituto Tecnológico de Oaxaca; Oaxaca Oax C.P. 68030 México
| | - Chiñas-Castillo Fernando
- Department of Mechanical Engineering; Instituto Tecnológico de Oaxaca; Oaxaca Oax C.P. 68030 México
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Abstract
During the last decade there has been increasing use of artificial intelligence tools in nanotechnology research. In this paper we review some of these efforts in the context of interpreting scanning probe microscopy, the study of biological nanosystems, the classification of material properties at the nanoscale, theoretical approaches and simulations in nanoscience, and generally in the design of nanodevices. Current trends and future perspectives in the development of nanocomputing hardware that can boost artificial-intelligence-based applications are also discussed. Convergence between artificial intelligence and nanotechnology can shape the path for many technological developments in the field of information sciences that will rely on new computer architectures and data representations, hybrid technologies that use biological entities and nanotechnological devices, bioengineering, neuroscience and a large variety of related disciplines.
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Affiliation(s)
- G M Sacha
- Grupo de Neurocomputación Biológica. Escuela Politécnica Superior, Universidad Autónoma de Madrid, Cantoblanco, Madrid, E-28049, Spain
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