1
|
Sysoev VV, Lashkov AV, Lipatov A, Plugin IA, Bruns M, Fuchs D, Varezhnikov AS, Adib M, Sommer M, Sinitskii A. UV-Light-Tunable p-/n-Type Chemiresistive Gas Sensors Based on Quasi-1D TiS 3 Nanoribbons: Detection of Isopropanol at ppm Concentrations. SENSORS (BASEL, SWITZERLAND) 2022; 22:9815. [PMID: 36560185 PMCID: PMC9783684 DOI: 10.3390/s22249815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The growing demand of society for gas sensors for energy-efficient environmental sensing stimulates studies of new electronic materials. Here, we investigated quasi-one-dimensional titanium trisulfide (TiS3) crystals for possible applications in chemiresistors and on-chip multisensor arrays. TiS3 nanoribbons were placed as a mat over a multielectrode chip to form an array of chemiresistive gas sensors. These sensors were exposed to isopropanol as a model analyte, which was mixed with air at low concentrations of 1-100 ppm that are below the Occupational Safety and Health Administration (OSHA) permissible exposure limit. The tests were performed at room temperature (RT), as well as with heating up to 110 °C, and under an ultraviolet (UV) radiation at λ = 345 nm. We found that the RT/UV conditions result in a n-type chemiresistive response to isopropanol, which seems to be governed by its redox reactions with chemisorbed oxygen species. In contrast, the RT conditions without a UV exposure produced a p-type response that is possibly caused by the enhancement of the electron transport scattering due to the analyte adsorption. By analyzing the vector signal from the entire on-chip multisensor array, we could distinguish isopropanol from benzene, both of which produced similar responses on individual sensors. We found that the heating up to 110 °C reduces both the sensitivity and selectivity of the sensor array.
Collapse
Affiliation(s)
- Victor V. Sysoev
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
| | - Andrey V. Lashkov
- Center for Probe Microscopy and Nanotechnology, National Research University of Electronic Technology, 124498 Moscow, Russia
| | - Alexey Lipatov
- Department of Chemistry, Biology & Health Sciences, South Dakota School of Mines and Technology, 501 E. Saint Joseph St., Rapid City, SD 57701, USA
| | - Ilya A. Plugin
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
| | - Michael Bruns
- Institute for Applied Materials and Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Dirk Fuchs
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Alexey S. Varezhnikov
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
| | - Mustahsin Adib
- Institute for Microstructure Technology, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Martin Sommer
- Institute for Microstructure Technology, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Alexander Sinitskii
- Department of Chemistry, University of Nebraska—Lincoln, Lincoln, NE 68588, USA
| |
Collapse
|
2
|
Kuranov D, Platonov V, Khmelevsky N, Bozhev I, Maksimov S, Rumyantseva M, Krivetskiy V. Effect of Nb(V) doping on the Structure and Oxygen Chemisorption on Nanocrystalline TiO
2. ChemistrySelect 2022. [DOI: 10.1002/slct.202202644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dmitry Kuranov
- Chemistry Department Moscow State University Moscow 119991 Russia
| | - Vadim Platonov
- Chemistry Department Moscow State University Moscow 119991 Russia
| | | | - Ivan Bozhev
- Quantum technology centre Moscow State University Moscow 119991 Russia
- Faculty of Physics Moscow State University Moscow 119991 Russia
| | - Sergey Maksimov
- Chemistry Department Moscow State University Moscow 119991 Russia
| | | | - Valeriy Krivetskiy
- Chemistry Department Moscow State University Moscow 119991 Russia
- Scientific-Manufacturing Complex «Technological Centre» Zelenograd Moscow 119991 Russia
| |
Collapse
|
3
|
Liu L, Cheng Z, Jiang B, Liu Y, Zhang Y, Yang F, Wang J, Yu XF, Chu PK, Ye C. Optoelectronic Artificial Synapses Based on Two-Dimensional Transitional-Metal Trichalcogenide. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30797-30805. [PMID: 34169714 DOI: 10.1021/acsami.1c03202] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The memristor is a foundational device for an artificial synapse, which is essential to realize next-generation neuromorphic computing. Herein, an optoelectronic memristor based on a two-dimensional (2D) transitional-metal trichalcogenide (TMTC) is designed and demonstrated. Owing to the excellent optical and electrical characteristics of titanium trisulfide (TiS3), the memristor exhibits stable bipolar resistance switching (RS) as a result of the controllable formation and rupturing of the conductive aluminum filaments. Multilevel storage is realized with light of multiple wavelengths between 400 and 808 nm, and the synaptic properties such as conduction modulation and spiking timing-dependent plasticity (STDP) are achieved. On the basis of the photonic potentiation and electrical habitual ability, Pavlovian-associative learning is successfully established on this TiS3-based artificial synapse. All these results reveal the large potential of 2D TMTCs in artificial neuromorphic chips.
Collapse
Affiliation(s)
- Lei Liu
- Faculty of Physics and Electronic Science, Hubei Key Laboratory of Ferro- & Piezoelectric Materials and Devices, Hubei University, Wuhan 430062, P.R. China
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Ziqiang Cheng
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
- Department of Applied Physics, East China Jiaotong University, Nanchang 330013, P.R. China
| | - Bei Jiang
- Faculty of Physics and Electronic Science, Hubei Key Laboratory of Ferro- & Piezoelectric Materials and Devices, Hubei University, Wuhan 430062, P.R. China
| | - Yanxin Liu
- Faculty of Physics and Electronic Science, Hubei Key Laboratory of Ferro- & Piezoelectric Materials and Devices, Hubei University, Wuhan 430062, P.R. China
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Yanli Zhang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Fan Yang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Jiahong Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Xue-Feng Yu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, P.R. China
| | - Cong Ye
- Faculty of Physics and Electronic Science, Hubei Key Laboratory of Ferro- & Piezoelectric Materials and Devices, Hubei University, Wuhan 430062, P.R. China
| |
Collapse
|
4
|
Fedorov FS, Simonenko NP, Trouillet V, Volkov IA, Plugin IA, Rupasov DP, Mokrushin AS, Nagornov IA, Simonenko TL, Vlasov IS, Simonenko EP, Sevastyanov VG, Kuznetsov NT, Varezhnikov AS, Sommer M, Kiselev I, Nasibulin AG, Sysoev VV. Microplotter-Printed On-Chip Combinatorial Library of Ink-Derived Multiple Metal Oxides as an "Electronic Olfaction" Unit. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56135-56150. [PMID: 33270411 DOI: 10.1021/acsami.0c14055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Information about the surrounding atmosphere at a real timescale significantly relies on available gas sensors to be efficiently combined into multisensor arrays as electronic olfaction units. However, the array's performance is challenged by the ability to provide orthogonal responses from the employed sensors at a reasonable cost. This issue becomes more demanded when the arrays are designed under an on-chip paradigm to meet a number of emerging calls either in the internet-of-things industry or in situ noninvasive diagnostics of human breath, to name a few, for small-sized low-powered detectors. The recent advances in additive manufacturing provide a solid top-down background to develop such chip-based gas-analytical systems under low-cost technology protocols. Here, we employ hydrolytically active heteroligand complexes of metals as ink components for microplotter patterning a multioxide combinatorial library of chemiresistive type at a single chip equipped with multiple electrodes. To primarily test the performance of such a multisensor array, various semiconducting oxides of the p- and n-conductance origins based on pristine and mixed nanocrystalline MnOx, TiO2, ZrO2, CeO2, ZnO, Cr2O3, Co3O4, and SnO2 thin films, of up to 70 nm thick, have been printed over hundred μm areas and their micronanostructure and fabrication conditions are thoroughly assessed. The developed multioxide library is shown to deliver at a range of operating temperatures, up to 400 °C, highly sensitive and highly selective vector signals to different, but chemically akin, alcohol vapors (methanol, ethanol, isopropanol, and n-butanol) as examples at low ppm concentrations when mixed with air. The suggested approach provides us a promising way to achieve cost-effective and well-performed electronic olfaction devices matured from the diverse chemiresistive responses of the printed nanocrystalline oxides.
Collapse
Affiliation(s)
- Fedor S Fedorov
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Street, Moscow 121205, Russia
| | - Nikolay P Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Vanessa Trouillet
- Institute for Applied Materials (IAM) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Ivan A Volkov
- Moscow Institute of Physics and Technology (MIPT), 9 Institutskiy per., Dolgoprudny, Moscow Region 141701, Russia
| | - Ilya A Plugin
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya Street, Saratov 410054, Russia
| | - Dmitry P Rupasov
- Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 3 Nobel Street, Moscow 121205, Russia
| | - Artem S Mokrushin
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Ilya A Nagornov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Tatiana L Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Ivan S Vlasov
- Moscow Institute of Physics and Technology (MIPT), 9 Institutskiy per., Dolgoprudny, Moscow Region 141701, Russia
| | - Elizaveta P Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Vladimir G Sevastyanov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Nikolay T Kuznetsov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Pr., Moscow 119991, Russia
| | - Alexey S Varezhnikov
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya Street, Saratov 410054, Russia
| | - Martin Sommer
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Ilia Kiselev
- Breitmeier Messtechnik GmbH, Englerstr. 27, 76275 Ettlingen, Germany
| | - Albert G Nasibulin
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Street, Moscow 121205, Russia
- Aalto University School of Chemical Engineering, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Victor V Sysoev
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya Street, Saratov 410054, Russia
| |
Collapse
|
5
|
Fedorov FS, Yaqin A, Krasnikov DV, Kondrashov VA, Ovchinnikov G, Kostyukevich Y, Osipenko S, Nasibulin AG. Detecting cooking state of grilled chicken by electronic nose and computer vision techniques. Food Chem 2020; 345:128747. [PMID: 33307429 DOI: 10.1016/j.foodchem.2020.128747] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/21/2020] [Accepted: 11/25/2020] [Indexed: 01/26/2023]
Abstract
Determination of food doneness remains a challenge for automation in the cooking industry. The complex physicochemical processes that occur during cooking require a combination of several methods for their control. Herein, we utilized an electronic nose and computer vision to check the cooking state of grilled chicken. Thermogravimetry, differential mobility analysis, and mass spectrometry were employed to deepen the fundamental insights towards the grilling process. The results indicated that an electronic nose could distinguish the odor profile of the grilled chicken, whereas computer vision could identify discoloration of the chicken. The integration of these two methods yields greater selectivity towards the qualitative determination of chicken doneness. The odor profile is matched with detected water loss, and the release of aromatic and sulfur-containing compounds during cooking. This work demonstrates the practicability of the developed technique, which we compared with a sensory evaluation, for better deconvolution of food state during cooking.
Collapse
Affiliation(s)
- Fedor S Fedorov
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel St., 121205 Moscow, Russia.
| | - Ainul Yaqin
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel St., 121205 Moscow, Russia.
| | - Dmitry V Krasnikov
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel St., 121205 Moscow, Russia.
| | - Vladislav A Kondrashov
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel St., 121205 Moscow, Russia.
| | - George Ovchinnikov
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, 3 Nobel Str., 121205 Moscow, Russia.
| | - Yury Kostyukevich
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, 3 Nobel Str., 121205 Moscow, Russia.
| | - Sergey Osipenko
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, 3 Nobel Str., 121205 Moscow, Russia.
| | - Albert G Nasibulin
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel St., 121205 Moscow, Russia; Aalto University, 00076 Espoo, Finland.
| |
Collapse
|
6
|
Pauliukaite R, Voitechovič E. Multisensor Systems and Arrays for Medical Applications Employing Naturally-Occurring Compounds and Materials. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3551. [PMID: 32585936 PMCID: PMC7349305 DOI: 10.3390/s20123551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/17/2020] [Accepted: 06/20/2020] [Indexed: 12/14/2022]
Abstract
The significant improvement of quality of life achieved over the last decades has stimulated the development of new approaches in medicine to take into account the personal needs of each patient. Precision medicine, providing healthcare customization, opens new horizons in the diagnosis, treatment and prevention of numerous diseases. As a consequence, there is a growing demand for novel analytical devices and methods capable of addressing the challenges of precision medicine. For example, various types of sensors or their arrays are highly suitable for simultaneous monitoring of multiple analytes in complex biological media in order to obtain more information about the health status of a patient or to follow the treatment process. Besides, the development of sustainable sensors based on natural chemicals allows reducing their environmental impact. This review is concerned with the application of such analytical platforms in various areas of medicine: analysis of body fluids, wearable sensors, drug manufacturing and screening. The importance and role of naturally-occurring compounds in the development of electrochemical multisensor systems and arrays are discussed.
Collapse
Affiliation(s)
- Rasa Pauliukaite
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania;
| | | |
Collapse
|
7
|
Abstract
The paper describes the substance image formation based on the measurements by multisensor systems and the possibility of the development of a gas analysis device like an electronic nose. Classification of gas sensors and the need for their application for the recognition of difficult images of multicomponent air environments are considered. The image is formed based on stochastic transformations, calculations of correlation, and fractal dimensions of reconstruction attractors. The paper shows images created for substances with various structures that were received with the help of a multisensor system under fixed measurement conditions.
Collapse
|
8
|
Okeil S, Yadav S, Bruns M, Zintler A, Molina-Luna L, Schneider JJ. Photothermal catalytic properties of layered titanium chalcogenide nanomaterials. Dalton Trans 2020; 49:1032-1047. [DOI: 10.1039/c9dt03798e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Titanium chalcogenides are valuable candidates for visible light photocatalysis at high efficiency levels. TiS2/TiO2 core shell heterostructures are able to increase this efficiency by an effective quenching of the exiton recombination.
Collapse
Affiliation(s)
- Sherif Okeil
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - Sandeep Yadav
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - Michael Bruns
- Institut für Angewandte Materialien (IAM-ESS)
- Karlsruher Institut für Technologie
- D-76344 Eggenstein-Leopoldshafen
- Germany
| | - Alexander Zintler
- Fachbereich Material- und Geowissenschaften
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - Leopoldo Molina-Luna
- Fachbereich Material- und Geowissenschaften
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - Jörg J. Schneider
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| |
Collapse
|
9
|
Bobkov A, Varezhnikov A, Plugin I, Fedorov FS, Trouillet V, Geckle U, Sommer M, Goffman V, Moshnikov V, Sysoev V. The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range. SENSORS (BASEL, SWITZERLAND) 2019; 19:E4265. [PMID: 31581437 PMCID: PMC6806624 DOI: 10.3390/s19194265] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 09/27/2019] [Accepted: 09/29/2019] [Indexed: 02/05/2023]
Abstract
We discuss the fabrication of gas-analytical multisensor arrays based on ZnO nanorods grown via a hydrothermal route directly on a multielectrode chip. The protocol to deposit the nanorods over the chip includes the primary formation of ZnO nano-clusters over the surface and secondly the oxide hydrothermal growth in a solution that facilitates the appearance of ZnO nanorods in the high aspect ratio which comprise a network. We have tested the proof-of-concept prototype of the ZnO nanorod network-based chip heated up to 400 °C versus three alcohol vapors, ethanol, isopropanol and butanol, at approx. 0.2-5 ppm concentrations when mixed with dry air. The results indicate that the developed chip is highly sensitive to these analytes with a detection limit down to the sub-ppm range. Due to the pristine differences in ZnO nanorod network density the chip yields a vector signal which enables the discrimination of various alcohols at a reasonable degree via processing by linear discriminant analysis even at a sub-ppm concentration range suitable for practical applications.
Collapse
Affiliation(s)
- Anton Bobkov
- Department of Micro- and Nanoelectronics, St. Petersburg Electrotechnical University "LETI", 197022 St. Petersburg, Russia.
| | - Alexey Varezhnikov
- Physico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, Russia.
| | - Ilya Plugin
- Physico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, Russia.
| | - Fedor S Fedorov
- Physico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, Russia.
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., 121205 Moscow, Russia.
| | - Vanessa Trouillet
- Institute for Applied Materials, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
- Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Udo Geckle
- Institute for Applied Materials, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Martin Sommer
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Vladimir Goffman
- Physico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, Russia.
| | - Vyacheslav Moshnikov
- Department of Micro- and Nanoelectronics, St. Petersburg Electrotechnical University "LETI", 197022 St. Petersburg, Russia.
| | - Victor Sysoev
- Physico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, Russia.
| |
Collapse
|
10
|
Zimnyakov DA, Vasilkov MY, Yuvchenko SA, Varezhnikov AS, Sommer M, Sysoev VV. Light-Tuned DC Conductance of Anatase TiO₂ Nanotubular Arrays: Features of Long-Range Charge Transport. NANOMATERIALS 2018; 8:nano8110915. [PMID: 30405017 PMCID: PMC6266825 DOI: 10.3390/nano8110915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/04/2018] [Accepted: 11/05/2018] [Indexed: 11/19/2022]
Abstract
Experimental results related to the photoactivated dc conductance of anatase TiO2 nanotubular arrays (aTNTAs) under pulsed irradiation by a laser light inside and outside the fundamental absorption band are presented. It is found that the mobility and diffusion coefficients of charge carriers in the examined aTNTA are extremely low due to a strong charge-phonon coupling, abundance of shallow traps, and hopping conductivity between adjacent nanotubes. We consider that the confining electric field appeared within the array structure due to the difference in the local concentrations of excess electrons and holes at large values of the dc conductance suppresses the drift current. In this case, the dc conductance of such aTNTAs is mainly matured by the diffusion of mobile carriers. A recurrent kinetic model for evolution of the dc conductance of aTNTAs under laser irradiation has been proposed to interpret the experimental results.
Collapse
Affiliation(s)
- Dmitry A Zimnyakov
- Physics Department, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov 410054, Russia.
- Precision Mechanics and Control Institute of Russian Academy of Sciences, 24 Rabochayastr., Saratov 410024, Russia.
| | - Michail Yu Vasilkov
- Physics Department, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov 410054, Russia.
- Saratov Branch of Kotelnikov Institute of Radio-Engineering and Electronics of Russian Academy of Sciences, 38 Zelenaya str., Saratov 410019, Russia.
| | - Sergey A Yuvchenko
- Physics Department, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov 410054, Russia.
| | - Alexey S Varezhnikov
- Physics Department, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov 410054, Russia.
| | - Martin Sommer
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, 1 Hermann-von-Helmholtz Platz, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Victor V Sysoev
- Physics Department, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov 410054, Russia.
| |
Collapse
|
11
|
Rackauskas S, Barbero N, Barolo C, Viscardi G. ZnO Nanowire Application in Chemoresistive Sensing: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E381. [PMID: 29120384 PMCID: PMC5707598 DOI: 10.3390/nano7110381] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/31/2017] [Accepted: 11/06/2017] [Indexed: 01/25/2023]
Abstract
This article provides an overview of the recent development of ZnO nanowires (NWs) for chemoresistive sensing. Working mechanisms of chemoresistive sensors are unified for gas, ultraviolet (UV) and bio sensor types: single nanowire and nanowire junction sensors are described, giving the overview for a simple sensor manufacture by multiple nanowire junctions. ZnO NW surface functionalization is discussed, and how this effects the sensing is explained. Further, novel approaches for sensing, using ZnO NW functionalization with other materials such as metal nanoparticles or heterojunctions, are explained, and limiting factors and possible improvements are discussed. The review concludes with the insights and recommendations for the future improvement of the ZnO NW chemoresistive sensing.
Collapse
Affiliation(s)
- Simas Rackauskas
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy.
| | - Nadia Barbero
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy.
| | - Claudia Barolo
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy.
| | - Guido Viscardi
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy.
| |
Collapse
|