Article
Chemistry, Physical
Zhenyuan Xu, Dongzhi Zhang, Xiaohua Liu, Yan Yang, Xingwei Wang, Qingzhong Xue
Summary: A humidity sensor driven by a dual-TENG has been developed for humidity detection at room temperature. The sensor exhibits high response linearity and can detect a wide range of humidity. It can also be used to monitor finger distance and response to water passing over the sensor surface, with the signals sent to a smart terminal for analysis.
Article
Chemistry, Physical
Minsoo P. Kim, Gunoh Lee, Byeongil Noh, Jaehyun Kim, Min Sub Kwak, Kyung Jin Lee, Hyunhyub Ko
Summary: This study introduces soft bilayer structured films to significantly enhance the output performance of triboelectric nanogenerators (TENGs). The use of different functional groups in the bilayer films allows for control of the triboelectric polarity. Deposited with specific functional groups, the bilayer films exhibit superior performance in interfacial polarization.
Article
Chemistry, Physical
Jinxu Qin, Xigui Yang, Chenglong Shen, Yu Chang, Yuan Deng, Zhenfeng Zhang, Hang Liu, Chaofan Lv, Yizhe Li, Chuang Zhang, Lin Dong, ChongXin Shan
Summary: This study develops humidity sensors based on carbon nanodots (CDs), which demonstrate high sensitivity and stability. By introducing a breath-driven triboelectric nanogenerator (TENG), a self-powered humidity sensor is created, showing potential for respiratory monitoring.
Review
Chemistry, Physical
Ping Sun, Saihua Jiang, Yubin Huang
Summary: This research reviews the application of safety monitoring based on NG, showing the potential of NG in monitoring safety-related information about environments, machines, and human bodies, and proposing that NG sensors will bring a new low-cost, precise, and intelligent way for safety monitoring.
Article
Chemistry, Multidisciplinary
Jin-Kyeom Kim, Gi Hyeon Han, Sun-Woo Kim, Hee Jun Kim, Rahul Purbia, Dong-Min Lee, Jong Kyu Kim, Hee Jae Hwang, Hyun-Cheol Song, Dukhyun Choi, Sang-Woo Kim, Zhong Lin Wang, Jeong Min Baik
Summary: In this study, a new strategy was developed to achieve maximum charge density in a high-output triboelectric nanogenerator (TENG). By designing a cationic material structure of SiO2 and MoS2 coated on a Ni-mesh, the new TENG generated significantly higher output power and superior charge density compared to Ni-mesh-based TENGs. The high charge density was attributed to the low work function of MoS2, upward bending of the energy band at the MoS2-SiO2 interface, and the high charge capacity of SiO2. The TENG demonstrated an average output power of 14.75 W m(-2) based on the gear-cam mode.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Sangmoon Han, Seoung-Ki Lee, Jong-Woong Kim, Sukang Bae, Sang-Hoon Bae, Kwang-Hun Choi, Jin Soo Kim
Summary: The researchers have successfully developed a self-powered image array composed of 16 touch-free sensors made with InN nanowires. These sensors can detect the position of a human hand 30 cm away from the device surface without using a power supply. They can also distinguish different materials in non-contact mode and have the potential for detecting changes in the surface texture of human skin.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Physical
Xu Yang, Fengxian Wu, Chunyan Xu, Liying Yang, Shougen Yin
Summary: In this study, a hybrid film composed of carbon nanotubes, niobium carbide MXene, and conductive polymer was prepared by a vacuum-assisted filtration method. The flexible high-output TENG sensor obtained using this film exhibited high performance and sensitivity, as well as good stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Jing Yin, Jie Wang, Seeram Ramakrishna, Lan Xu
Summary: The material and structural designs of friction layers have significant impacts on the performance of TENGs. Electrospun nanofibers can enhance the electrical performance of wearable TENG. In this study, a porous nanofiber membrane of PLA/CS/aloin was used as the positive friction layer, while beaded nanofiber membranes loaded with CB nanoparticles were used as the negative friction layer.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Yili Hu, Jiangtao Zhou, Jianping Li, Jijie Ma, Ying Hu, Feng Lu, Xinsheng He, Jianming Wen, Tinghai Cheng
Summary: This study proposes a traditional tipping-bucket rain gauge based on manifold triboelectric nanogenerator units to address the low measurement accuracy and severe abrasion issues of traditional rain gauges. Experimental results demonstrate that the proposed rain gauge has real-time measurement ability, high resolution, and rainwater energy harvesting function.
Article
Chemistry, Physical
Fangfang Gao, Xuan Zhao, Zheng Zhang, Linlin An, Liangxu Xu, Xiaochen Xun, Bin Zhao, Tian Ouyang, Yue Zhang, Qingliang Liao, Li Wang
Summary: A lateral stretching-insensitive and self-powered pressure sensor has been developed in this study, which can maintain a constant impedance under lateral stretching strain and has potential applications in wearable devices and electronic skin for health assessment and prosthetics.
Article
Chemistry, Physical
Guang Li, Shuying Wu, Zhao Sha, Liya Zhao, Dewei Chu, Chun H. Wang, Shuhua Peng
Summary: In the era of IoTs, triboelectric nano-generators (TENGs) are widely researched for self-powered sensing due to their high efficiency, versatile configuration, and low cost. However, the inherent variation of TENG outputs limits their direct use as primary sensing signals. To solve this issue, a new method is proposed to extract the sensing signal that is independent of TENG output variations. This method accurately determines applied strain using the ratio of currents in two parallel branches, eliminating the effect of output variations and providing a self-powered sensing solution.
Article
Engineering, Electrical & Electronic
Jiangming Fu, Kequan Xia, Zhiwei Xu
Summary: The double helix TENG is a novel type of triboelectric nanogenerator that can harvest mechanical energy and perform weight sensing, with high output voltage and current, suitable for self-powered weight scales.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Biophysics
Jieyu Dai, Linlin Li, Bojing Shi, Zhou Li
Summary: Self-powered sensors in respiratory monitoring have great potential and applications due to their low cost and easy preparation, but the establishment of reasonable respiratory disease models remains challenging.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Mingmin Hao, Ruichao Zhang, Xiaofeng Jia, Xiang Gao, Weihao Gao, Li Cheng, Yong Qin
Summary: Self-powered gas sensors offer significant advantages in large-scale applications, with triboelectric nanogenerator being an ideal power source due to its high power output. Eliminating the influence of environmental factors is crucial for practical application, and a polymer based self-powered ethanol gas sensor has been designed to address this issue effectively.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Gao-Lei Ni, Xiaoshuai Zhu, Hao-Yang Mi, Pei-Yong Feng, Jun Li, Xin Jing, Binbin Dong, Chuntai Liu, Changyu Shen
Summary: This study introduces a new method to fabricate high-performance TENGs by producing skinless porous TPU film, which, when paired with convex structured PDMS film, significantly enhances output performance. The optimized TENG shows high power density, excellent stability, and durability, serving not only as a power source for small electronics but also as a self-powered sensor for impact force detection and monitoring human walking behaviors.
