Review
Engineering, Electrical & Electronic
Yuan Zhu, Yang Liu, Yunna Sun, Yanxin Zhang, Guifu Ding
Summary: This article systematically summarizes the global research progress of resistive tactile sensors, including innovative work in piezoresistive materials, structural design, etc., and provides references for sensor design. At the same time, the article points out the grand challenges of flexible large-scale integration, signal stability, and long-term reliability.
IEEE SENSORS JOURNAL
(2022)
Article
Automation & Control Systems
Zeyu Lu, Haoyong Yu
Summary: This article introduces a robotic hand integrated with tactile sensors to obtain both normal and shear contact force feedback simultaneously. By leveraging distributed forces and acquiring dynamic time-varying rate and tactile events, the complicated coupling relationships during external contact can be perceived. Quantitative evaluation shows high accuracy in recognizing external contact states, and the use of sectionwise features significantly reduces error rates.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2023)
Article
Chemistry, Physical
M. Wu, Z. Gao, K. Yao, S. Hou, Y. Liu, D. Li, J. He, X. Huang, E. Song, J. Yu, X. Yu
Summary: Flexible and stretchable triboelectric nanogenerator (FS-TENG) is a promising technology for energy harvesting and tactile sensing. By using porous poly(dimethylsiloxane) foam and advanced serpentine silver nanowires, ultrathin self-powering sensors have been developed to enhance the electrical output signals. These sensors have shown great potential for applications in healthcare monitoring and human-machine interfaces.
MATERIALS TODAY ENERGY
(2021)
Review
Engineering, Electrical & Electronic
Chang-Hee Won, Jong-Ha Lee, Firdous Saleheen
Summary: This paper reviews the application of Tactile Sensing Systems in the non-invasive characterization of tumors by quantifying mechanical properties in a manner that mimics the human skin's perceptual mechanism. Different tactile sensors and data processing algorithms are utilized for real-time interpretation and accurate measurement of mechanical properties of touched objects.
IEEE SENSORS JOURNAL
(2021)
Article
Robotics
Alfonso J. Fernandez, Huan Weng, Paul B. Umbanhowar, Kevin M. Lynch
Summary: Visiflex is an inexpensive compliant tactile fingertip capable of contact localization and 6 degree-of-freedom (dof) contact force and torque measurement. Compliance is built into Visiflex through a 6-dof flexure, and a camera position sensor is used for force sensing and contact location detection. Tests show that typical errors are minimal for contact location and force sensing.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Yan Zhou, Le Zhao, Zichen Song, Chunlei Chang, Lin Yang, Shihui Yu
Summary: In this work, a PDMS/Ag NWs/PEDOT: PSS composite film with high transmittance, low sheet resistance, excellent folding performance, and good heating capability was successfully prepared by transferring PEDOT: PSS from glass substrate to PDMS substrate using HNO3 treatment.
Article
Chemistry, Physical
Zenghui Sima, Peng Song, Qi Wang
Summary: The ZnSnO3 hollow cubes were successfully modified by Ag nanoparticles, which generated Schottky barrier-type junctions and enhanced the sensing performance. The gas-sensing results showed excellent response value (26.7) towards 50 ppm formaldehyde at 100 degrees C, as well as fast response/recovery time (12/18 s), remarkable reproducibility, and outstanding stability. The sensing mechanism was proposed based on the structure of ZnSnO3 hollow cubes and the catalytic activity of Ag NPs. This work confirms that Ag NPs modification is an efficient strategy to improve the sensing properties of ZnSnO3-based gas sensors.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Nathan F. Lepora
Summary: Reproducing the capabilities of the human sense of touch in machines is crucial for enabling robot manipulation to mimic human dexterity. A combination of soft robotics, biomimetics, and optical tactile sensors are needed to achieve this, forming a SoftBOT sensor. This article reviews the BRL TacTip as an example and discusses topics such as artificial skin morphology, tactile shear sensing, 3D printing, and the application of AI in tactile perception, showing the potential for robots to achieve human-like dexterity through deep learning.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Wooseok Kim, Doyoung Kim, Jihwan Kim, Sang Uk Park, Hee Kyu Lee, Janghoon Joo, Se Gi Lee, Jeong Woo Chae, Jeonghyun Kim, Seungyong Han, Hyoung Won Baac, Sang Min Won
Summary: This article introduces a pressure sensor made on a mechanically deformable substrate, which is widely used in health monitoring systems, tactile sensors, and human-machine interfaces. By optimizing the geometrical configuration, the sensor can effectively reduce the mechanical distortion caused by non-pressure related stimuli, enabling independent perception of normal force.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Jinhao Zhang, Xin Wang, Zhiwei Yang, Jian Wang, Jiacheng Cao, Qian Chen, Shilong Yu, Jian Zhang, Tianwen Guo, Hai Li, Xiao Huang
Summary: In this study, egg-shell EGaIn/Ag/ZnO ternary composite particles were prepared as a wearable sensor capable of both pressure and proximity detection. The sensor showed excellent sensitivity to low pressures and could detect approaching objects up to 20 cm away. By combining the sensing curves in touchless and touching modes, the extracted parameters could be used to create fingerprints for different objects, demonstrating the potential of the sensor in the differentiation and identification of unknown objects for future robotics and artificial intelligence.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Yancheng Wang, Yingtong Lu, Deqing Mei, Lingfeng Zhu
Summary: This article introduces a wearable tactile sensor based on galinstan liquid metal, which can independently sense temperature and contact force simultaneously. The sensor has high sensitivity and can accurately measure contact forces and temperatures during grasping applications.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Yi Gong, Xiaoying Cheng, Zhenyu Wu, Yisheng Liu, Ping Yu, Xudong Hu
Summary: This paper proposes a novel flexible tactile sensor array for dynamic triaxial force measurement, which shows high sensitivity and response speeds in experiments. The sensor can detect triaxial forces of different magnitudes and frequencies, while also recognizing the shape, size, and curvature of external objects.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Zhihua Wang, Hansong Leng, Na Li, Tao Yao
Summary: In this study, a slip sensor made of conductive sponge and PVDF was proposed to sense the magnitude and direction of the sliding force. Experimental results showed that the sensor has a fast response time and a wide detection range, making it effective for real-time detection of object sliding.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Kyubin Bae, Minhyeong Kim, Yunsung Kang, Sangjun Sim, Wondo Kim, Soonjae Pyo, Jongbaeg Kim
Summary: Porous structures in tactile sensors have shown improved sensitivity in practical applications, but challenges remain in achieving high sensitivity over a wide pressure range. Current research focuses on developing composite materials to address this issue.
Article
Chemistry, Physical
Ya-Wei Cai, Xiao-Nan Zhang, Gui-Gen Wang, Gui-Zhong Li, Da-Qiang Zhao, Na Sun, Fei Li, Hua-Yu Zhang, Jie-Cai Han, Ya Yang
Summary: The study constructed a flexible TENG as a self-powered tactile sensor using a simple method, achieving high sensitivity and showing good application prospects in monitoring complex physiological signals and simulating human touch sensation.
Article
Nanoscience & Nanotechnology
Hongyan Zhou, Mengjing Jin, Bojian Zhou, Jianguo Zhao, Weihua Han
Summary: The composite material of SnO2/MoO3 at a 1:1 ratio showed exceptional electrochemical performance after 300 cycles, attributed to its unique 3D porous structure. The addition of graphene improved electrical conductivity, resulting in better electrochemical performance of SnO2/MoO3@Graphene composite material.
Article
Chemistry, Inorganic & Nuclear
Bo Liu, Xiao Jiang, Xiaolin Jiang, Yinyi Ma, Zemin Zhang, Weihua Han
Summary: This study synthesized a composite photocatalyst with a Z-scheme charge transfer for hydrogen generation without bias. The optimized photocatalyst demonstrated improved hydrogen generation rate and photocurrent, about 70% higher than pure WO3. These enhancements were attributed to enhanced light absorption, extended conduction band level of BiVO4, and unique charge transfer behavior in the Z-scheme structure.
INORGANIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Xiaolin Jiang, Tao Chen, Bo Liu, Rongke Sun, Jiecai Fu, Xiao Jiang, Peng Cui, Zhanqi Liu, Weihua Han
Summary: This study proposes a strategy to enhance the electrochemical performance of iron oxide anodes by spinel-framework constraining. By adjusting the doping ratio of Fe (II/III) self-redox pairs, the anode performance is optimized, leading to remarkable electrochemical performance with high specific capacitance and capacitance retention. The study demonstrates that tuning the valence charge of active ions can improve the inherent performance of anode materials.
Article
Physics, Applied
Xiao Jiang, Xu Cheng, Zemin Zhang, Tao Chen, Kun Tao, Weihua Han
Summary: This study proposes a physical model to predict the optimal thickness of photocatalytic films through a combination of computation and experiments. By considering the electric potential distribution across the entire film and solving the continuity equation, the model can predict the distribution of minority carriers and the optimal thickness of the film.
APPLIED PHYSICS LETTERS
(2022)
Article
Energy & Fuels
Bingrong Guo, Bin Liu, Xinqiang Zhang, Junhong Lu, Chaoli Wang, Yuhua Wang, Shu Yin, Weihua Han
Summary: This study proposes a solution to the issues faced by conventional photocatalysts in solar light utilization and photocatalytic capability by decorating narrow-bandgap In2S3 nanosheets on g-C3N4 to form a Z-schemed photocatalyst. It achieves visible light utilization without sacrificing its photocatalytic capability, and the composite exhibits excellent photocatalytic activity in H-2 evolution under visible light.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Bo Liu, Mengdi Sun, Bing Tan, Zemin Zhang, Weihua Han
Summary: Photoelectrochemical (PEC) synthesis is a promising method for producing green fuels, but its application is limited by low energy conversion efficiency due to photocarrier recombination. In this study, polarized BaTiO3 nanoparticles are embedded in a BiVO4 composite photoanode to modulate the inner potential distribution and improve the collection of photocarriers. The results show that the energy conversion efficiency has been significantly improved compared to pure BiVO4, demonstrating a feasible strategy to enhance photocarrier collection efficiency.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Physics, Applied
Zhanqi Liu, Kai Wang, Xiao Jiang, Muhammad Sufyan Javed, Weihua Han
Summary: The study discusses the use of an insulation layer to wrap carbon nanotubes in triboelectric nanogenerators to improve output performance, which significantly reduces leakage current and enhances overall efficiency.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Salamat Ali, Xiaofeng Zhang, Muhammad Sufyan Javed, Xiaqing Zhang, Guo Liu, Xuegang Wei, Hao Chen, Muhammad Imran, Jiatai Wang, Weihua Han, Jing Qi
Summary: Developing advanced electrode materials for supercapacitors has attracted significant attention. This study presents an efficient hydrothermal synthesis of MoS2 nanosheets on carbon cloth, which exhibits excellent electrochemical performance with high specific capacitance and long-term stability. Density functional theory calculations further elucidate the favorable Li-ion intercalation and adsorption properties of the MoS2@CC electrode, highlighting its potential for high-performance supercapacitor applications.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Linhua Li, Yunxia Li, Zhanqi Liu, Tao Chen, Xiao Jiang, Zemin Zhang, Fangcong Wang, Weihua Han
Summary: In this study, a multilevel porous structure is proposed to improve the sensing range and pressure sensitivity of a force sensor. The results demonstrate that the sensor exhibits superior performance and excellent stability and durability.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Physics, Applied
Kai Wang, Bo Liu, Zhanqi Liu, Xiao Jiang, Zemin Zhang, Weihua Han
Summary: Metal oxides are commonly used as photoanode materials for photoelectrochemical reactions due to their stability and low cost. However, the high recombination rate of photocarriers limits their commercial applications. This study demonstrates that building an inner electric field through band engineering techniques can effectively improve the photocarrier separation and photocatalytic performance of metal oxide photocatalysts.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Abdul Mateen, Muhammad Sufyan Javed, Xiaofeng Zhang, Iftikhar Hussain, Tayyaba Najam, Awais Ahmad, Asma A. Alothman, Mohamed Ouladsmane, Sayed M. Eldin, Weihua Han, Kui-Qing Peng
Summary: Symmetric pseudocapacitors (SPCs) have high power density and long life-span, but their energy density is insufficient for critical applications. In this study, we developed a low-cost silicon (Si) embedded in metal-organic framework (MOF)-derived cobalt nano-sized particles/nitrogen-doped carbon (Si/Co-NC) electrode material that works at positive and negative potential windows simultaneously. The optimized electrode with 30% Si content achieved remarkable capacitance and retained 97% of capacitance after 10,000 cycles. Additionally, a symmetric pseudocapacitor, Si/Co-NC1||Si/Co-NC1-SPC, showed a broader operating potential window range, excellent capacitance, and achieved the highest energy density reported for symmetric supercapacitors to date.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Physics, Applied
Xiaofeng Zhang, Muhammad Sufyan Javed, Hongjia Ren, Xinkong Wei, Xinze Zhang, Shaukat Khan, Awais Ahmad, Ammar M. Tighezza, Ahmed M. Hassan, Weihua Han
Summary: This study presents an electrode material for a biodegradable supercapacitor with exceptional electrochemical performance and cycling stability. By combining two electrodes, a supercapacitor with high energy density and cycling stability is achieved. Moreover, the device is fully biodegradable, which paves the way for advancing bioelectronics and sustainable energy storage technologies for biomedical applications.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Yunxia Li, Weihua Han
Summary: In this study, a multifunctional sensor that combines force/strain and temperature sensing functions into a single element was developed. The sensor, made of a lightweight aerogel composite of silver nanowires and poly(dimethylsiloxane), showed sensitive responses to various stimuli. Additionally, the sensor had the ability to absorb pollutants.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zemin Zhang, Bing Tan, Wenjun Ma, Bo Liu, Mengdi Sun, Jason K. Cooper, Weihua Han
Summary: Metal oxide semiconductors have great potential as photo-electrodes for photoelectrochemical H2O2 production. However, the efficiency and selectivity need to be improved. In this study, BiFeO3 was used as the model photocathode, and introducing a LaNiO3 layer as the charge collection layer effectively enhanced the photoelectrochemical activity and H2O2 production.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Multidisciplinary
Bingrong Guo, Bin Liu, Chaoli Wang, Yuhua Wang, Shu Yin, Weihua Han
Summary: The recombination of photocarriers is a crucial factor affecting the performance of photocatalysts. The design of heterojunction photocatalysts can effectively inhibit the recombination by enhancing photocarrier separation and transport. In this study, a Z-scheme WS2/In2S3 photocatalyst with a bi-layered sheet-like structure was synthesized. The unique architecture of this photocatalyst reduced the charge transfer distance and provided more surface area, promoting the photocatalytic reaction. The Z-scheme structure effectively separated and retained the strong redox capability of the photocarriers, resulting in remarkable photocatalytic activity for H-2 generation and tetracycline hydrochloride degradation. The Z-scheme WS2/In2S3 composite showed the highest H-2 generation rate of 592.9 mu mol g(-1) h(-1) and the best degradation efficiency of 90% within 60 min. The bi-layered Z-scheme photocatalyst also demonstrated excellent stability and recyclability.
NEW JOURNAL OF CHEMISTRY
(2022)
