151
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Coskun MB, Qiu L, Arefin MS, Neild A, Yuce M, Li D, Alan T. Detecting Subtle Vibrations Using Graphene-Based Cellular Elastomers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11345-11349. [PMID: 28332815 DOI: 10.1021/acsami.7b01207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Ultralight graphene elastomer-based flexible sensors are developed to detect subtle vibrations within a broad frequency range. The same device can be employed as an accelerometer, tested within the experimental bandwidth of 20-300 Hz as well as a microphone, monitoring sound pressures from 300 to 20 000 Hz. The sensing element does not contain any metal parts, making them undetectable by external sources and can provide an acceleration sensitivity of 2.6 mV/g, which is higher than or comparable to those of rigid Si-based piezoresistive microelectromechanical systems (MEMS).
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Affiliation(s)
- M Bulut Coskun
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
| | - Ling Qiu
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
| | - Md Shamsul Arefin
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
| | - Adrian Neild
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
| | - Mehmet Yuce
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
| | - Dan Li
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
| | - Tuncay Alan
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, §Department of Materials Science and Engineering, and ⊥Biomedical Integrated Circuits and Sensors Department of Electrical and Computer Engineering, Monash University , Melbourne, Victoria 3800, Australia
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152
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Shin SH, Ji S, Choi S, Pyo KH, Wan An B, Park J, Kim J, Kim JY, Lee KS, Kwon SY, Heo J, Park BG, Park JU. Integrated arrays of air-dielectric graphene transistors as transparent active-matrix pressure sensors for wide pressure ranges. Nat Commun 2017; 8:14950. [PMID: 28361867 PMCID: PMC5381006 DOI: 10.1038/ncomms14950] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 02/15/2017] [Indexed: 12/23/2022] Open
Abstract
Integrated electronic circuitries with pressure sensors have been extensively researched as a key component for emerging electronics applications such as electronic skins and health-monitoring devices. Although existing pressure sensors display high sensitivities, they can only be used for specific purposes due to the narrow range of detectable pressure (under tens of kPa) and the difficulty of forming highly integrated arrays. However, it is essential to develop tactile pressure sensors with a wide pressure range in order to use them for diverse application areas including medical diagnosis, robotics or automotive electronics. Here we report an unconventional approach for fabricating fully integrated active-matrix arrays of pressure-sensitive graphene transistors with air-dielectric layers simply formed by folding two opposing panels. Furthermore, this realizes a wide tactile pressure sensing range from 250 Pa to ∼3 MPa. Additionally, fabrication of pressure sensor arrays and transparent pressure sensors are demonstrated, suggesting their substantial promise as next-generation electronics. Electronic skins and health monitoring devices rely on integrated tactile sensors, which often require tailored degrees of sensitivity in specific pressure ranges. Here, the authors fabricate a versatile matrix array of pressure-sensitive graphene transistors operating in the wide 250 Pa to 3 MPa pressure range.
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Affiliation(s)
- Sung-Ho Shin
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Sangyoon Ji
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Seiho Choi
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Kyoung-Hee Pyo
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Byeong Wan An
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Jihun Park
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Joohee Kim
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Ju-Young Kim
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Ki-Suk Lee
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Soon-Yong Kwon
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Jaeyeong Heo
- Department of Materials Science and Engineering and Optoelectronic Convergence Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Byong-Guk Park
- Department of Materials Science and Engineering and KI for Nanocentury, KAIST, Daejeon 34141, Republic of Korea
| | - Jang-Ung Park
- School of Materials Science and Engineering, SDC-UNIST Research Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
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153
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Madhanagopal J, Singh OP, Sornambikai S, Omar AH, Sathasivam KV, Fatihhi SJ, Abdul Kadir MR. Enhanced wide-range monotonic piezoresistivity, reliability of Ketjenblack/deproteinized natural rubber nanocomposite, and its biomedical application. J Appl Polym Sci 2017. [DOI: 10.1002/app.44981] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jagannathan Madhanagopal
- Medical Devices and Technology Group (MEDITEG); Universiti Teknologi Malaysia (UTM); 81310 Skudai Johor Bahru Johor Malaysia
| | - Om Prakash Singh
- Bio-signal Processing Group (BSP); Universiti Teknologi Malaysia (UTM); 81310 Skudai Johor Bahru Johor Malaysia
| | - Sundaram Sornambikai
- Medical Devices and Technology Group (MEDITEG); Universiti Teknologi Malaysia (UTM); 81310 Skudai Johor Bahru Johor Malaysia
| | - Abdul Hafidz Omar
- Institute of Human Centered Engineering (IHCE), Universiti Teknologi Malaysia (UTM); 81310 Skudai Johor Bahru Johor Malaysia
| | | | - S. J. Fatihhi
- Malaysian Institute of Industrial Technology, Universiti Kuala Lumpur; Bandar Seri Alam Johor Malaysia
| | - Mohammed Rafiq Abdul Kadir
- Medical Devices and Technology Group (MEDITEG); Universiti Teknologi Malaysia (UTM); 81310 Skudai Johor Bahru Johor Malaysia
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154
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Xu M, Qi J, Li F, Liao X, Liu S, Zhang Y. Ultra-thin, transparent and flexible tactile sensors based on graphene films with excellent anti-interference. RSC Adv 2017. [DOI: 10.1039/c7ra04239f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The graphene based tactile sensor features a high sensitivity and shows strong anti-interference ability to the disturbance signals.
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Affiliation(s)
- Minxuan Xu
- School of Materials Science and Engineering
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Junjie Qi
- School of Materials Science and Engineering
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Feng Li
- School of Materials Science and Engineering
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Xinqin Liao
- School of Materials Science and Engineering
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Shuo Liu
- School of Materials Science and Engineering
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Yue Zhang
- School of Materials Science and Engineering
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- China
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155
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Luo Y, Xiao Q, Li B. Highly compressible graphene/polyurethane sponge with linear and dynamic piezoresistive behavior. RSC Adv 2017. [DOI: 10.1039/c7ra03922k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A high-elastic graphene/polyurethane (PU) nanocomposite with excellent electromechanical properties was fabricated by a facile ice-templated assembly strategy.
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Affiliation(s)
- Yuanzheng Luo
- Key Laboratory of Electronic Information Functional Material of Education Ministry
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Qi Xiao
- Key Laboratory of Electronic Information Functional Material of Education Ministry
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Buyin Li
- Key Laboratory of Electronic Information Functional Material of Education Ministry
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
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156
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Rinaldi A, Tamburrano A, Fortunato M, Sarto MS. A Flexible and Highly Sensitive Pressure Sensor Based on a PDMS Foam Coated with Graphene Nanoplatelets. SENSORS 2016; 16:s16122148. [PMID: 27999251 PMCID: PMC5191128 DOI: 10.3390/s16122148] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 11/29/2016] [Accepted: 12/08/2016] [Indexed: 01/23/2023]
Abstract
The demand for high performance multifunctional wearable devices is more and more pushing towards the development of novel low-cost, soft and flexible sensors with high sensitivity. In the present work, we describe the fabrication process and the properties of new polydimethylsiloxane (PDMS) foams loaded with multilayer graphene nanoplatelets (MLGs) for application as high sensitive piezoresistive pressure sensors. The effective DC conductivity of the produced foams is measured as a function of MLG loading. The piezoresistive response of the MLG-PDMS foam-based sensor at different strain rates is assessed through quasi-static pressure tests. The results of the experimental investigations demonstrated that sensor loaded with 0.96 wt.% of MLGs is characterized by a highly repeatable pressure-dependent conductance after a few stabilization cycles and it is suitable for detecting compressive stresses as low as 10 kPa, with a sensitivity of 0.23 kPa−1, corresponding to an applied pressure of 70 kPa. Moreover, it is estimated that the sensor is able to detect pressure variations of ~1 Pa. Therefore, the new graphene-PDMS composite foam is a lightweight cost-effective material, suitable for sensing applications in the subtle or low and medium pressure ranges.
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Affiliation(s)
- Andrea Rinaldi
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy.
- Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy.
| | - Alessio Tamburrano
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy.
- Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy.
| | - Marco Fortunato
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy.
- Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy.
| | - Maria Sabrina Sarto
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy.
- Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy.
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157
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Ahn SI, Jung J, Kim Y, Lee Y, Kim K, Lee SE, Kim S, Choi KK. Self-assembled and intercalated film of reduced graphene oxide for a novel vacuum pressure sensor. Sci Rep 2016; 6:38830. [PMID: 27976686 PMCID: PMC5156946 DOI: 10.1038/srep38830] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 11/15/2016] [Indexed: 12/03/2022] Open
Abstract
We report a new method for measuring vacuum pressures using Van der Waals (VDW) interactions between reduced graphene oxide (RGO) sheets. For this purpose, we utilized a reaction-based self-assembly process to fabricate various intercalated RGO (i-RGO) films, and monitored their electrical behavior with changing pressure and temperature. Pumping to remove gas from a vacuum chamber produced a decrease in the sheet resistance of i-RGO. With further pumping, distinctly different sheet resistance behaivors were observed depending on the measurement temperature. With increasing vacuum pressure, the resistance increased at 100 °C, whereas it decreased at 30 °C. Two types of VDW interactions are proposed to explain these features: a local VDW interaction between RGO sheets that resulted in V-shaped curves of sheet resistance with pressure changes and broad VDW interactions that occur between RGO sheets when the elastic force required to bend carbon clusters on an RGO sheet exceeds their vibrational energy at low temperatures. On the basis of the results, we propose that the resistance behavior of i-RGO as a function of vacuum pressure can be interpreted as the sum of the two different VDW interactions.
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Affiliation(s)
- Sung Il Ahn
- Department of Engineering in Energy and Applied Chemistry Silla University, Busan 617-736, Republic of Korea
| | - Jura Jung
- Department of Engineering in Energy and Applied Chemistry Silla University, Busan 617-736, Republic of Korea
| | - Yongwoo Kim
- Department of Engineering in Energy and Applied Chemistry Silla University, Busan 617-736, Republic of Korea
| | - Yujin Lee
- Department of Engineering in Energy and Applied Chemistry Silla University, Busan 617-736, Republic of Korea
| | - Kukjoo Kim
- Department of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Seong Eui Lee
- Advanced Materials Engineering Korea Polytechnic University, Jungwang dong Shihung 429-793, Republic of Korea
| | - Sungyun Kim
- Institute of NT.IT fusion technology, Ajou university, Worldcup ro 260, Youngtong gu Suwon 16499, Republic of Korea
| | - Kyeong-Keun Choi
- National Institute for Nanomaterials Technology (NINT) San 31, Hyoja-Dong, Nam-Gu, Pohang 790-784, Republic of Korea
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158
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Zhang J, Hao L, Yang F, Jiao W, Liu W, Li Y, Wang R, He X. Biomimic Hairy Skin Tactile Sensor Based on Ferromagnetic Microwires. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33848-33855. [PMID: 27960407 DOI: 10.1021/acsami.6b14236] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present a multifunctional tactile sensor inspired by human hairy skin structure, in which the sensitive hair sensor and the robust skin sensor are integrated into a single device via a pair of Co-based ferromagnetic microwire arrays in a very simple manner. The sensor possesses a self-tunable effective compliance with respect to the magnitude of the stimulus, allowing a wide range of loading force to be measured. The sensor also exhibits some amazing functions, such as air-flow detection, material property characterization, and excellent damage resistance. The novel sensing mechanism and structure provide a new strategy for designing multifunctional tactile sensors and show great potential applications on intelligent robot and sensing in harsh environments.
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Affiliation(s)
- Jian Zhang
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
| | - Lifeng Hao
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
| | - Fan Yang
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
| | - Weicheng Jiao
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
| | - Wenbo Liu
- School of Materials Science and Engineering, Harbin Institute of Technology , Heilongjiang Sheng 150001, China
| | - Yibin Li
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
| | - Rongguo Wang
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
| | - Xiaodong He
- Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, China
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159
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Li YQ, Zhu WB, Yu XG, Huang P, Fu SY, Hu N, Liao K. Multifunctional Wearable Device Based on Flexible and Conductive Carbon Sponge/Polydimethylsiloxane Composite. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33189-33196. [PMID: 27934197 DOI: 10.1021/acsami.6b11196] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Wearable devices that can be used to monitor personal health, track human motions, and provide thermotherapy, etc., are highly desired in personalized healthcare. In this work, a multifunctional wearable "wrist band" which works as both heater for thermotherapy and sensor for personal health and motion monitoring is fabricated from a flexible and conductive carbon sponge/polydimethylsiloxane (CS/PDMS) composite. The key functional material of the wrist band, namely, the conductive CS, is synthesized from waste paper by a freeze-drying and high-temperature pyrolysis process. When the wrist band works as a heater under 15 V, a stable temperature difference of 20 °C is achieved between the wrist band and the ambient. When the wrist band serves as a wearable strain sensor, the wrist band exhibits fast and repeatable response and excellent durability within the strain range of 0-20% and the working frequency of 0.01-10 Hz. Finally, the typical applications of the multifunctional wearable wrist band, as a heater for thermotherapy and a sensor for blood pulse, breathe, and walk monitoring, are demonstrated. Due to its low cost, high flexibility, moderate conductivity, and excellent strain sensibility, the as-prepared wearable device based on the CS/PDMS composite is promising to be applied for the provision of personal healthcare.
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Affiliation(s)
| | | | | | | | | | | | - Kin Liao
- Department of Mechanical Engineering, Khalifa University of Science, Technology, & Research , Abu Dhabi 127788, United Arab Emirates
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160
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Deng W, Jin L, Zhang B, Chen Y, Mao L, Zhang H, Yang W. A flexible field-limited ordered ZnO nanorod-based self-powered tactile sensor array for electronic skin. NANOSCALE 2016; 8:16302-16306. [PMID: 27714054 DOI: 10.1039/c6nr04057h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A tactile sensor is an essential component for realizing biomimetic robots, while the flexibility of the tactile sensor is a pivotal feature for its application, especially for electronic skin. In this work, a flexible self-powered tactile sensor array was designed based on the piezoelectricity of ZnO nanorods (NRs). The field-limited ordered ZnO NRs were synthesized on a flexible Kapton substrate to serve as the functional layer of the tactile sensor. The electrical output performances of the as-fabricated tactile sensor were measured under pressing and bending forces. Moreover, we measured the human-finger pressure detection performance of the tactile sensor array, suggesting that the corresponding mapping figure of finger pressure could be displayed on the monitor of a personal computer (PC) in the form of lighted LED and color density through a LabVIEW system. This as-grown sensory feedback system should be of potential valuable assistance for the users of hand prostheses to reduce the risk and obtain a greater feeling of using the prostheses.
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Affiliation(s)
- W Deng
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - L Jin
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - B Zhang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Y Chen
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - L Mao
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - H Zhang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - W Yang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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161
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Zhang H, Liu N, Shi Y, Liu W, Yue Y, Wang S, Ma Y, Wen L, Li L, Long F, Zou Z, Gao Y. Piezoresistive Sensor with High Elasticity Based on 3D Hybrid Network of Sponge@CNTs@Ag NPs. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22374-81. [PMID: 27482721 DOI: 10.1021/acsami.6b04971] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Pressure sensors with high elasticity are in great demand for the realization of intelligent sensing, but there is a need to develope a simple, inexpensive, and scalable method for the manufacture of the sensors. Here, we reported an efficient, simple, facile, and repeatable "dipping and coating" process to manufacture a piezoresistive sensor with high elasticity, based on homogeneous 3D hybrid network of carbon nanotubes@silver nanoparticles (CNTs@Ag NPs) anchored on a skeleton sponge. Highly elastic, sensitive, and wearable sensors are obtained using the porous structure of sponge and the synergy effect of CNTs/Ag NPs. Our sensor was also tested for over 2000 compression-release cycles, exhibiting excellent elasticity and cycling stability. Sensors with high performance and a simple fabrication process are promising devices for commercial production in various electronic devices, for example, sport performance monitoring and man-machine interfaces.
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Affiliation(s)
- Hui Zhang
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Nishuang Liu
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Yuling Shi
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Weijie Liu
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Yang Yue
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Siliang Wang
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Yanan Ma
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Li Wen
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Luying Li
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
| | - Fei Long
- School of Material Science & Engineering, Guangxi Nonferrous Metals Mineral and Materials, Collaborative Innovation Center, Guilin University of Technology , Jian'ganRoad 12, Guilin 541004, Guangxi P.R. China
| | - Zhengguang Zou
- School of Material Science & Engineering, Guangxi Nonferrous Metals Mineral and Materials, Collaborative Innovation Center, Guilin University of Technology , Jian'ganRoad 12, Guilin 541004, Guangxi P.R. China
| | - Yihua Gao
- Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) and School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, P.R. China
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162
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Coskun MB, Akbari A, Lai DTH, Neild A, Majumder M, Alan T. Ultrasensitive Strain Sensor Produced by Direct Patterning of Liquid Crystals of Graphene Oxide on a Flexible Substrate. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22501-22505. [PMID: 27490520 DOI: 10.1021/acsami.6b06290] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ultrasensitive flexible strain sensors were developed through the combination of shear alignment of a high concentration graphene oxide (GO) dispersion with fast and precise patterning of multiple rectangular features on a flexible substrate. Resistive changes in the reduced GO films were investigated under various uniaxial strain cycles ranging from 0.025 to 2%, controlled with a motorized nanopositioning stage. The devices uniquely combine a very small detection limit (0.025%) and a high gauge factor with a rapid fabrication process conducive to batch production.
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Affiliation(s)
- M Bulut Coskun
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, Monash University , Melbourne 3800, Australia
| | - Abozar Akbari
- Nanoscale Science and Engineering Laboratory, Department of Mechanical and Aerospace Engineering, Monash University , Melbourne 3800, Australia
| | - Daniel T H Lai
- College of Engineering and Science, Victoria University , Melbourne 3011, Australia
| | - Adrian Neild
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, Monash University , Melbourne 3800, Australia
| | - Mainak Majumder
- Nanoscale Science and Engineering Laboratory, Department of Mechanical and Aerospace Engineering, Monash University , Melbourne 3800, Australia
| | - Tuncay Alan
- Laboratory for Micro Systems, Department of Mechanical and Aerospace Engineering, Monash University , Melbourne 3800, Australia
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163
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Yeo JC, Yu J, Koh ZM, Wang Z, Lim CT. Wearable tactile sensor based on flexible microfluidics. LAB ON A CHIP 2016; 16:3244-3250. [PMID: 27438370 DOI: 10.1039/c6lc00579a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we develop a liquid-based thin film microfluidic tactile sensor of high flexibility, robustness and sensitivity. The microfluidic elastomeric structure comprises a pressure sensitive region and parallel arcs that interface with screen-printed electrodes. The microfluidic sensor is functionalized with a highly conductive metallic liquid, eutectic gallium indium (eGaIn). Microdeformation on the pressure sensor results in fluid displacement which corresponds to a change in electrical resistance. By emulating parallel electrical circuitry in our microchannel design, we reduced the overall electrical resistance of the sensor, therefore enhancing its device sensitivity. Correspondingly, we report a device workable within a range of 4 to 100 kPa and sensitivity of up to 0.05 kPa(-1). We further demonstrate its robustness in withstanding >2500 repeated loading and unloading cycles. Finally, as a proof of concept, we demonstrate that the sensors may be multiplexed to detect forces at multiple regions of the hand. In particular, our sensors registered unique electronic signatures in object grasping, which could provide better assessment of finger dexterity.
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Affiliation(s)
- Joo Chuan Yeo
- Singapore Institute of Manufacturing Technology, A*STAR, 138634 Singapore and Department of Biomedical Engineering, National University of Singapore, 117575 Singapore and Mechanobiology Institute, National University of Singapore, 117411 Singapore.
| | - Jiahao Yu
- Department of Biomedical Engineering, National University of Singapore, 117575 Singapore
| | - Zhao Ming Koh
- Department of Biomedical Engineering, National University of Singapore, 117575 Singapore
| | - Zhiping Wang
- Singapore Institute of Manufacturing Technology, A*STAR, 138634 Singapore
| | - Chwee Teck Lim
- Department of Biomedical Engineering, National University of Singapore, 117575 Singapore and Mechanobiology Institute, National University of Singapore, 117411 Singapore.
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164
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Kwon D, Lee TI, Shim J, Ryu S, Kim MS, Kim S, Kim TS, Park I. Highly Sensitive, Flexible, and Wearable Pressure Sensor Based on a Giant Piezocapacitive Effect of Three-Dimensional Microporous Elastomeric Dielectric Layer. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16922-31. [PMID: 27286001 DOI: 10.1021/acsami.6b04225] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We report a flexible and wearable pressure sensor based on the giant piezocapacitive effect of a three-dimensional (3-D) microporous dielectric elastomer, which is capable of highly sensitive and stable pressure sensing over a large tactile pressure range. Due to the presence of micropores within the elastomeric dielectric layer, our piezocapacitive pressure sensor is highly deformable by even very small amounts of pressure, leading to a dramatic increase in its sensitivity. Moreover, the gradual closure of micropores under compression increases the effective dielectric constant, thereby further enhancing the sensitivity of the sensor. The 3-D microporous dielectric layer with serially stacked springs of elastomer bridges can cover a much wider pressure range than those of previously reported micro-/nanostructured sensing materials. We also investigate the applicability of our sensor to wearable pressure-sensing devices as an electronic pressure-sensing skin in robotic fingers as well as a bandage-type pressure-sensing device for pulse monitoring at the human wrist. Finally, we demonstrate a pressure sensor array pad for the recognition of spatially distributed pressure information on a plane. Our sensor, with its excellent pressure-sensing performance, marks the realization of a true tactile pressure sensor presenting highly sensitive responses to the entire tactile pressure range, from ultralow-force detection to high weights generated by human activity.
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Affiliation(s)
- Donguk Kwon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Tae-Ik Lee
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Jongmin Shim
- Department of Civil, Structural and Environmental Engineering, University at Buffalo , Buffalo, New York 14260, United States
| | - Seunghwa Ryu
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Min Seong Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Seunghwan Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Taek-Soo Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Inkyu Park
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
- KAIST Institute (KI) for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
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165
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Bae GY, Pak SW, Kim D, Lee G, Kim DH, Chung Y, Cho K. Linearly and Highly Pressure-Sensitive Electronic Skin Based on a Bioinspired Hierarchical Structural Array. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5300-6. [PMID: 27159832 DOI: 10.1002/adma.201600408] [Citation(s) in RCA: 238] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/05/2016] [Indexed: 05/12/2023]
Abstract
Pressure-sensitive electronic skin composed of a hierarchical structural array exhibits outstanding linear and high sensitivity in the pressure range exerted by gentle touch. By virtue of monolayer graphene acting as electrode material, this device can be operated with low voltage. Especially, its high transparency enables an accurate placement of the device on the target position when it is used for health monitoring.
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Affiliation(s)
- Geun Yeol Bae
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
| | - Sang Woo Pak
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
| | - Daegun Kim
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
| | - Giwon Lee
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
| | - Do Hwan Kim
- Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, 156-743, South Korea
| | - Yoonyoung Chung
- Department of Electrical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea
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166
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Zhong W, Liu Q, Wu Y, Wang Y, Qing X, Li M, Liu K, Wang W, Wang D. A nanofiber based artificial electronic skin with high pressure sensitivity and 3D conformability. NANOSCALE 2016; 8:12105-12. [PMID: 27250529 DOI: 10.1039/c6nr02678h] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Pressure sensors with 3D conformability are highly desirable components for artificial electronic skin or e-textiles that can mimic natural skin, especially for application in real-time monitoring of human physiological signals. Here, a nanofiber based electronic skin with ultra-high pressure sensitivity and 3D conformability is designed and built by interlocking two elastic patterned nanofibrous membranes. The patterned membrane is facilely prepared by casting conductive nanofiber ink into a silicon mould to form an array of semi-spheroid-like protuberances. The protuberances composed of intertwined elastic POE nanofibers and PPy@PVA-co-PE nanofibers afford a tunable effective elastic modulus that is capable of capturing varied strains and stresses, thereby contributing to a high sensitivity for pressure sensing. This electronic skin-like sensor demonstrates an ultra-high sensitivity (1.24 kPa(-1)) below 150 Pa with a detection limit as low as about 1.3 Pa. The pixelated sensor array and a RGB-LED light are then assembled into a circuit and show a feasibility for visual detection of spatial pressure. Furthermore, a nanofiber based proof-of-concept wireless pressure sensor with a bluetooth module as a signal transmitter is proposed and has demonstrated great promise for wireless monitoring of human physiological signals, indicating a potential for large scale wearable electronic devices or e-skin.
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Affiliation(s)
- Weibin Zhong
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Qiongzhen Liu
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Yongzhi Wu
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Yuedan Wang
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Xing Qing
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Mufang Li
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Ke Liu
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Wenwen Wang
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
| | - Dong Wang
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
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167
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Jang H, Park YJ, Chen X, Das T, Kim MS, Ahn JH. Graphene-Based Flexible and Stretchable Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:4184-202. [PMID: 26728114 DOI: 10.1002/adma.201504245] [Citation(s) in RCA: 206] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/01/2015] [Indexed: 05/24/2023]
Abstract
Graphene provides outstanding properties that can be integrated into various flexible and stretchable electronic devices in a conventional, scalable fashion. The mechanical, electrical, and optical properties of graphene make it an attractive candidate for applications in electronics, energy-harvesting devices, sensors, and other systems. Recent research progress on graphene-based flexible and stretchable electronics is reviewed here. The production and fabrication methods used for target device applications are first briefly discussed. Then, the various types of flexible and stretchable electronic devices that are enabled by graphene are discussed, including logic devices, energy-harvesting devices, sensors, and bioinspired devices. The results represent important steps in the development of graphene-based electronics that could find applications in the area of flexible and stretchable electronics.
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Affiliation(s)
- Houk Jang
- School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 03722, Republic of Korea
| | - Yong Ju Park
- School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 03722, Republic of Korea
| | - Xiang Chen
- School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 03722, Republic of Korea
| | - Tanmoy Das
- School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 03722, Republic of Korea
| | - Min-Seok Kim
- Center for Mass Related Quantities, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-guDaejeon, 34113, Republic of Korea
| | - Jong-Hyun Ahn
- School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 03722, Republic of Korea
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168
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Avella-Oliver M, Morais S, Puchades R, Maquieira Á. Towards photochromic and thermochromic biosensing. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.11.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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169
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Wang Q, Hong W, Dong L. Graphene "microdrums" on a freestanding perforated thin membrane for high sensitivity MEMS pressure sensors. NANOSCALE 2016; 8:7663-71. [PMID: 26988111 DOI: 10.1039/c5nr09274d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We present a microelectromechanical system (MEMS) graphene-based pressure sensor realized by transferring a large area, few-layered graphene on a suspended silicon nitride thin membrane perforated by a periodic array of micro-through-holes. Each through-hole is covered by a circular drum-like graphene layer, namely a graphene "microdrum". The uniqueness of the sensor design is the fact that introducing the through-hole arrays into the supporting nitride membrane allows generating an increased strain in the graphene membrane over the through-hole array by local deformations of the holes under an applied differential pressure. Further reasons contributing to the increased strain in the devised sensitive membrane include larger deflection of the membrane than that of its imperforated counterpart membrane, and direct bulging of the graphene microdrum under an applied pressure. Electromechanical measurements show a gauge factor of 4.4 for the graphene membrane and a sensitivity of 2.8 × 10(-5) mbar(-1) for the pressure sensor with a good linearity over a wide pressure range. The present sensor outperforms most existing MEMS-based small footprint pressure sensors using graphene, silicon, and carbon nanotubes as sensitive materials, due to the high sensitivity.
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Affiliation(s)
- Qiugu Wang
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
| | - Wei Hong
- Department of Aerospace Engineering, Iowa State University, Ames, Iowa 50011, USA
| | - Liang Dong
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
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170
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Jang H, Yoon H, Ko Y, Choi J, Lee SS, Jeon I, Kim JH, Kim H. Enhanced performance in capacitive force sensors using carbon nanotube/polydimethylsiloxane nanocomposites with high dielectric properties. NANOSCALE 2016; 8:5667-5675. [PMID: 26899884 DOI: 10.1039/c5nr07958f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Force sensors have attracted tremendous attention owing to their applications in various fields such as touch screens, robots, smart scales, and wearable devices. The force sensors reported so far have been mainly focused on high sensitivity based on delicate microstructured materials, resulting in low reproducibility and high fabrication cost that are limitations for wide applications. As an alternative, we demonstrate a novel capacitive-type force sensor with enhanced performance owing to the increased dielectric properties of elastomers and simple sensor structure. We rationally design dielectric elastomers based on alkylamine modified-multi-walled carbon nanotube (MWCNT)/polydimethylsiloxane (PDMS) composites, which have a higher dielectric constant than pure PDMS. The alkylamine-MWCNTs show excellent dispersion in a PDMS matrix, thus leading to enhanced and reliable dielectric properties of the composites. A force sensor array fabricated with alkylamine-MWCNT/PDMS composites presents an enhanced response due to the higher dielectric constant of the composites than that of pure PDMS. This study is the first to report enhanced performance of capacitive force sensors by modulating the dielectric properties of elastomers. We believe that the disclosed strategy to improve the sensor performance by increasing the dielectric properties of elastomers has great potential in the development of capacitive force sensor arrays that respond to various input forces.
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Affiliation(s)
- Hyeyoung Jang
- Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea. and KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Korea
| | - Hyungsuk Yoon
- Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Korea. and School of Mechanical Systems Engineering, Chonnam National University, Gwangju, 61186, Korea
| | - Youngpyo Ko
- Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea.
| | - Jaeyoo Choi
- Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea.
| | - Sang-Soo Lee
- Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea. and KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Korea
| | - Insu Jeon
- School of Mechanical Systems Engineering, Chonnam National University, Gwangju, 61186, Korea
| | - Jong-Ho Kim
- Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Korea.
| | - Heesuk Kim
- Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea.
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171
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Qiu L, Bulut Coskun M, Tang Y, Liu JZ, Alan T, Ding J, Truong VT, Li D. Ultrafast Dynamic Piezoresistive Response of Graphene-Based Cellular Elastomers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:194-200. [PMID: 26524469 DOI: 10.1002/adma.201503957] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/09/2015] [Indexed: 05/05/2023]
Abstract
Ultralight graphene-based cellular elastomers are found to exhibit nearly frequency-independent piezoresistive behaviors. Surpassing the mechanoreceptors in the human skin, these graphene elastomers can provide an instantaneous and high-fidelity electrical response to dynamic pressures ranging from quasi-static up to 2000 Hz, and are capable of detecting ultralow pressures as small as 0.082 Pa.
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Affiliation(s)
- Ling Qiu
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - M Bulut Coskun
- Department of Mechanical and Aerospace Engineering, Monash University, VIC, 3800, Australia
| | - Yue Tang
- Department of Chemical Engineering, Monash University, VIC, 3800, Australia
| | - Jefferson Z Liu
- Department of Mechanical and Aerospace Engineering, Monash University, VIC, 3800, Australia
- Monash Centre for Atomically Thin Materials, Monash University, VIC, 3800, Australia
| | - Tuncay Alan
- Department of Mechanical and Aerospace Engineering, Monash University, VIC, 3800, Australia
| | - Jie Ding
- Land Division, Defence Science and Technology Group, Fishermans Bend, VIC, 3207, Australia
| | - Van-Tan Truong
- Maritime Division, Defence Science and Technology Group, Fishermans Bend, VIC, 3207, Australia
| | - Dan Li
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
- Monash Centre for Atomically Thin Materials, Monash University, VIC, 3800, Australia
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172
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Shehzad K, Xu Y, Gao C, Duan X. Three-dimensional macro-structures of two-dimensional nanomaterials. Chem Soc Rev 2016; 45:5541-5588. [DOI: 10.1039/c6cs00218h] [Citation(s) in RCA: 241] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review summarizes the recent progress and efforts in the synthesis, structure, properties, and applications of three-dimensional macro-structures of two-dimensional nanomaterials.
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Affiliation(s)
- Khurram Shehzad
- College of Information Science and Electronic Engineering and State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou
- China
| | - Yang Xu
- College of Information Science and Electronic Engineering and State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou
- China
- Department of Chemistry and Biochemistry and California Nanosystems Institute
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiangfeng Duan
- Department of Chemistry and Biochemistry and California Nanosystems Institute
- University of California
- Los Angeles
- USA
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173
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Seo J, Song M, Han H, Kim H, Lee JH, Park SY, Kang IK, Kim Y. Ultrasensitive tactile sensors based on planar liquid crystal-gated-organic field-effect transistors with polymeric dipole control layers. RSC Adv 2015. [DOI: 10.1039/c5ra08921b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Liquid crystal-gated-organic field-effect transistors with polymeric dipole control layers can sense extremely low gas flows unfelt by human skins.
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Affiliation(s)
- Jooyeok Seo
- Organic Nanoelectronics Laboratory
- Department of Chemical Engineering
- School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
| | - Myeonghun Song
- Organic Nanoelectronics Laboratory
- Department of Chemical Engineering
- School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
| | - Hyemi Han
- Organic Nanoelectronics Laboratory
- Department of Chemical Engineering
- School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
| | - Hwajeong Kim
- Organic Nanoelectronics Laboratory
- Department of Chemical Engineering
- School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
| | - Joon-Hyung Lee
- School of Materials Science and Engineering
- Kyungpook National University
- Daegu 702-701
- Republic of Korea
| | - Soo-Young Park
- Department of Polymer Science and Engineering and Graduate School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
- Republic of Korea
| | - Inn-Kyu Kang
- Department of Polymer Science and Engineering and Graduate School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
- Republic of Korea
| | - Youngkyoo Kim
- Organic Nanoelectronics Laboratory
- Department of Chemical Engineering
- School of Applied Chemical Engineering
- Kyungpook National University
- Daegu 702-701
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