Article
Materials Science, Multidisciplinary
Huaan Zeng, Qizhen Chen, Liuting Shan, Yujie Yan, Changsong Gao, Wenjie Lu, Huipeng Chen, Tailiang Guo
Summary: Although there has been remarkable progress in various synaptic devices, searching for artificial synapses with new functions is still crucial. This study introduces a light-emitting electrochemical artificial synapse (LEEAS) with dual output functionality, which can mimic synaptic plasticity and storage capabilities.
SCIENCE CHINA-MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jihoon Chung, Deokjae Heo, Kyunghwan Cha, Zong-Hong Lin, Jinkee Hong, Sangmin Lee
Summary: Hydropower generation, a well-known electricity generation technique, has been enhanced with the development of a triboelectrification-based electricity generation device that uses water as the triboelectric material. The portable water-sloshing-based electricity generator not only produces high electric output but also can be effectively used as an auxiliary power source for small electronics and sensors.
Article
Chemistry, Physical
Junmeng Guo, Xiaobo Yuan, Haoran Ruan, Yingfeng Duan, Yang Liu, Chuiyun Kong, Yabing Liu, Meiying Su, Tianen Xie, Heng Wang, Ningning Xuan, Wei Liu, Feng Yang, Yongle Zhang, Gang Cheng, Zuliang Du
Summary: This study proposes a flexible optoelectronic synapse device based on polyimide/graphene heterojunction, which effectively emulates human visual functionalities and achieves various synaptic behaviors by modulating light pulses parameters. The conductivity of the graphene channel can also be regulated through TENG-induced negative gas ions adsorption, enhancing the functionality of the device.
Article
Chemistry, Physical
Junho Jang, Woosung Cho, Bosung Kim, Jun Hyuk Shin, Sanghoon Kim, Myeongcheol Go, Su Seok Choi, Sang-Woo Kim, Jin Kon Kim, Unyong Jeong
Summary: This study systematically investigates the retention time of the charge-saturated state in triboelectric sensors (TES) and suggests using DC charging to enhance the retention time. It finds that the TES generates identical output signals regardless of the touch frequency as long as the contact time interval is less than the retention time. This research is important for recognizing contact locations and contact sequences.
Review
Chemistry, Physical
Yang Lyu, Yi Wang
Summary: Biodegradable triboelectric nanogenerators (BD-TENGs) have gained attention in the field of green energy due to their eco-friendliness, safety, and biocompatibility. However, their relatively low output performance remains a challenge. This review summarizes the existing optimizing methods of BD-TENGs, which include altering material compositions, changing surface microstructures, and improving dielectric properties.
Article
Engineering, Electrical & Electronic
Yaqian Liu, Huaan Zeng, Tailiang Guo, Huipeng Chen
Summary: This study realizes an artificial tactile perception system with the functions of perception, memory, and feedback by utilizing a triboelectric nanogenerator and a polymer light-emitting electrochemical cell. The artificial tactile system successfully simulates the stress response and pain memory of organisms to different levels of stress signals, which is expected to build artificial skin.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
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
Chemistry, Physical
Lanyue Gan, Fan Xia, Panpan Zhang, Xijun Jiang, Yuxuan Liu, Simiao Niu, Youfan Hu
Summary: This study proposes a TENG structure with a constant inherent capacitance and establishes a mathematical model to analyze its output parameters. Figures of merit and an optimization strategy are introduced, and a new type of TENG that continuously collects mechanical energy is constructed. The study finds that CIC-TENG has a higher power transfer efficiency and successfully fabricates a self-powered anemometer for real-time wind speed measurement.
Review
Chemistry, Multidisciplinary
Yu Liang, Xinyu Xu, Libin Zhao, Chenyang Lei, Kejie Dai, Ran Zhuo, Beibei Fan, E. Cheng, Mohsen A. Hassan, Lingxiao Gao, Xiaojing Mu, Ning Hu, Chi Zhang
Summary: This review mainly focuses on the relationship between surface charge density and output power of triboelectric nanogenerators (TENGs). Various methods to enhance the surface charge density of TENGs are comprehensively discussed and the existing challenges and potential opportunities for future research in this area are highlighted.
Article
Chemistry, Physical
Chuncai Shan, Wencong He, Huiyuan Wu, Shaoke Fu, Gui Li, Yan Du, Jian Wang, Qianjin Mu, Hengyu Guo, Boyuan Liu, Chenguo Hu
Summary: Textile-based TENG is a promising technology that converts ambient and human mechanical energy into electric energy. In this study, a double mode TENG (DM-TENG) is proposed to improve the output by efficiently utilizing deep trapped charges and adding induction electrodes. The use of a lint-free cloth as a tribo-material and buffer layer also enhances the mechanical stability. The data shows significant improvement in the performance of this technology.
Article
Chemistry, Physical
Yongjoo Lee, Seong Gu Kang, Jaehwa Jeong
Summary: The paper introduces a staggered electrode S-TENG, which significantly improves its output performance by changing the electrode arrangement. The staggered electrode arrangement increases both the open-circuit voltage and transfer charge simultaneously.
Article
Chemistry, Physical
Feilong Dong, Zhen Pang, Qiufeng Lin, Da Wang, Xiaoyan Ma, Shuang Song, Shuangxi Nie
Summary: In this study, a self-powered photoelectric catalysis system using a spherical triboelectric nanogenerator was developed to improve the removal rate of Atrazine. The system showed significant enhancements in the removal and mineralization of Atrazine under a pulsed direct-current electric field. The degradation mechanism and pathway of Atrazine were investigated through experiments and calculations. This research provides a novel strategy for enhancing the performance of self-powered photoelectric catalysis processes for wastewater treatment.
Article
Materials Science, Multidisciplinary
Yang Yu, Qi Gao, Da Zhao, Xiang Li, Zhong Lin Wang, Tinghai Cheng
Summary: For the first time, this study explores the influence of mechanical motions on the output characteristics of Triboelectric nanogenerator (TENG). Two new mechanical motions of TENG are proposed: coupling rotation contact-separation (CRCS) motion and independent rotation contactseparation (IRCS) motion. The study reveals that mechanical motions significantly affect the output characteristics of TENG, and this influence is universal. The transferred charges and output power of TENG are greatly enhanced under CRCS and IRCS motions compared to contact-separation (CS) motion. The study establishes theoretical models to describe the dynamic charging and discharging under different mechanical motions.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Physical
Zhao Sha, Cyrille Boyer, Guang Li, Yuyan Yu, Francois-Marie Allioux, Kourosh Kalantar-Zadeh, Chun-Hui Wang, Jin Zhang
Summary: A technique for introducing liquid metal Galinstan nanodroplets into electrospun PVDF-co-HFP nanofibers was proposed to enhance the triboelectric performance of TENGs, resulting in significantly improved electrical outputs. The LM modified PVDF-HFP nanofiber membranes showed the highest multifunctionality efficiency in terms of mechanical performance and electrical generation.
Article
Thermodynamics
Zeynep Kinas, Abdulkerim Karabiber, Adem Yar, Abdurrahman Ozen, Faruk Ozel, Mustafa Ersoz, Abdulkerim Okbaz
Summary: The study demonstrates that introducing reduced graphene oxide and carbon nanotube into the PAN matrix can enhance the output performance of TENGs, while introducing carbon black into PAN can reduce the tribo-potential. The best result shows that adding 3 wt% of CNT to PAN significantly increases the charge amount and power density of TENGs.
Article
Materials Science, Multidisciplinary
Xiaoyang Xuan, Min Qian, Likun Pan, Ting Lu, Yang Gao, Yueping Niu, Shangqing Gong
Summary: This article introduces a flexible battery with a smart electrochromic function and designs a Ni // Zn battery with an electricity visual alerting function. The battery has a high energy density and reversible color change, allowing for visual monitoring of the battery's residual electricity.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kui Pan, Jie Sun, Chang Lin, Liying Deng, Xiao Li, Zuodong Mao, Tianxi Yang, Zhonghang Huang, Yang Li, Junyang Nie, Tailiang Guo, Qun Yan
Summary: Based on transfer printing technology, micro-LED pixels can be transferred to different driving substrates to achieve displays with various applications. The separation of GaN-based micro-LEDs from the original substrate is achieved using conventional laser lift-off techniques. The pixels are then transferred to a flexible tape and further onto an intermediate and rigid substrate using a sacrificial layer for assistance. Experimental results demonstrate efficient transfer with the potential for further transfer to different types and sizes of driving substrates using a suitable transfer stamp.
Article
Nanoscience & Nanotechnology
Zhiqi Luo, Yongshen Yu, Kaiyu Yang, Lihua Lin, Jintang Lin, Tailiang Guo, Hailong Hu, Fushan Li
Summary: High-performance cadmium-free ZnSe/ZnS quantum dot light-emitting diodes (QLEDs) are achieved by constructing a double organic hole-transport layer, leading to improved carrier balance and higher external quantum efficiency.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiangnan Xia, Xincan Qiu, Yu Liu, Ping-An Chen, Jing Guo, Huan Wei, Jiaqi Ding, Haihong Xie, Yawei Lv, Fuxiang Li, Wenwu Li, Lei Liao, Yuanyuan Hu
Summary: A general device fabrication strategy for metal halide perovskite (MHP) FETs is proposed, which successfully obtains transparent perovskite FETs. The strategy involves the use of ferroelectric copolymer poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) as the dielectric, which solves the challenging issue of gate-electric-field screening effect in MHP FETs. Additionally, ultra-thin SnO2 is inserted between the source/drain electrodes and MHPs to facilitate electron injection. These FETs have the attractiveness of low-cost, large-area transparent electronics applications.
Article
Crystallography
Zibin Lin, Haonan Jiang, Daochun Ye, Wenyan Zhang, Enguo Chen, Yun Ye, Sheng Xu, Qun Yan, Tailiang Guo
Summary: This paper presents a zero-optical-distance mini-LED backlight with cone-shaped light coupling microstructures to achieve an ultra-thin backlight architecture. The illuminance uniformity and light extraction efficiency of the whole structure reach 91.47% and 77.09%, respectively. The structure shows high optical performance while reducing the thickness of the backlight module, which is of great significance for the development of mini-LED backlights.
Article
Materials Science, Multidisciplinary
Ting Xiao, Yang Chen, Qi Li, Yang Gao, Likun Pan, Fuzhen Xuan
Summary: A hybrid DLP-3D printing method is developed for flexible sensor fabrication, incorporating carbon nanotube/elastomer (MWCNT/EA) as sensing units and selective electrostatic self-assembly of silver nanowires (Ag NWs) as interconnectors. The flexible sensor exhibits improved sensitivity, mechanical stability, and easy fabrication, making it suitable for structural health monitoring, human-machine interface, and soft robotics applications.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Electrical & Electronic
Di Liu, Qiming Lian, Yaqian Liu, Xianghong Zhang, Liuting Shan, Gengxu Chen, Qian Yang, Tailiang Guo, Huipeng Chen
Summary: The artificial tactile sensing system enables the perception of different types of tactile information. Most tactile sensors convert external stimulation signals into conductivity values and use complex external circuits to detect human physiological signals. In this study, an artificial synaptic device was connected to a triboelectric nanogenerator (TENG) to create a simple tactile sensing system. This system can detect external pressure and accurately recognize touch signals with frequencies of 1-2.5 Hz. Furthermore, complex biological behavior was also simulated, which has implications for future bionic tactile systems and human-computer interaction.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Optics
Bingle Huang, Nan Zha, Enguo Chen, Tailiang Guo
Summary: This paper presents a patternable two-color quantum dot (QD) color conversion film prepared by photolithography technique. The toluene-assisted dispersion of QD powder with the best performance matching was selected. The experimental results show that the height of the patternable QD microstructures has good consistency and the photolithographic process does not significantly affect the spectral characteristics of QDs. Therefore, the preparation methods described in this paper can provide a reference for related research.
OPTICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Qiaocan Huang, Zunxian Yang, Yuanqing Zhou, Yuliang Ye, Bingqing Ye, Zihong Shen, Wenbo Wu, Zongyi Meng, Zhiwei Zeng, Hongyi Hong, Songwei Ye, Zhiming Cheng, Qianting Lan, Jiaxiang Wang, Ye Chen, Hui Zhang, Tailiang Guo, Fushan Li, Yongyi Chen, Zhenzhen Weng
Summary: Quantum dots (QDs) with a CdSe@ZnS/ZnS alloy shell have great potential as emitters for opto-electronic devices due to their narrow FWHM, high color purity, and tunable wavelength. This study optimized the core growth and cladding process of QDs to obtain high-quality QDs and used 1-Octanethiol (OT) as ligands to improve their stability. The morphology, colloidal stability, and luminescence performance were analyzed in detail. The green CdSe@ZnS/ZnS QLEDs achieved a peak luminescence of 361,850 cd/m2 and a current efficiency (CE) of 33 cd/A by reducing defect state densities and prolonging carrier lifetimes. This work enhances our understanding of the relationship between defect state density and QD performance for the design and fabrication of high-performance light-emitting diodes.
Article
Materials Science, Multidisciplinary
Yibin Lin, Wandi Chen, Jinyu Ye, Jinjie Xu, Xinyan Gan, Yuyan Peng, Xiongtu Zhou, Tailiang Guo, Yongai Zhang, Chaoxing Wu
Summary: In this work, a novel single-electrode mode alternating current electroluminescence device with epidermal potential as another stimulation electrode (EPSE-ACEL) is proposed for the simultaneous sensing and display of biological information. The EPSE-ACEL device, consisting of a composited emissive layer and a transparent electrode, can be easily attached to any position on the human body and self-powered by natural triboelectrification and static charges. It is demonstrated that the EPSE-ACEL device can be used in fingerprint display and wireless wearable display, showing promising applications in human-computer interaction, health-care monitoring, and intelligent wearable equipment.
Article
Chemistry, Physical
Hui Wang, Zhichao Rao, Yaqian Liu, Liuting Shan, Tailiang Guo, Huipeng Chen, Rui Wang
Summary: In this study, a highly stretchable dual-mode triboelectric nanogenerator (SDTENG) with both stretch-insensitive sensing and stretch-sensitive sensing properties is proposed. By regional modulus modulation based on cross-linked interpenetrating network (IPN), our SDTENG shows almost the same pressure sensing property in the 120% stretch range, while the MXene/CNT electrode exhibits excellent strain sensitivity. The combination of stretch-insensitive pressure sensing and stretch-sensitive strain sensing makes our SDTENG a promising candidate for wearable devices and smart robots.
Article
Nanoscience & Nanotechnology
Kaiyu Yang, Jinliang Mao, Jinping Zheng, Yongshen Yu, Baolin Xu, Qingkai Zhang, Xukeng Weng, Qiuxiang Lin, Tailiang Guo, Fushan Li
Summary: By introducing rubidium bromide (RbBr) to tune the crystallization kinetics of quasi-2D perovskites, more uniform phase distribution is achieved, and surface defects are effectively passivated, leading to significant improvement in photoluminescence quantum yield and external quantum efficiency of PeLEDs.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Physics, Applied
Ziming Song, Qi Li, Yabin Yan, Yang Gao, Fuzhen Xuan
Summary: This study developed a crack-based strain sensor using carbon nanotube-silicon oxide/polydimethylsiloxane (CNT-SiOx/PDMS), and established an electro-mechanical mathematical model to analyze the relationship between strain, crack density, and device sensitivity. The results revealed that crack density affects the distribution and quantity of conductive elements, and stress applied to the device leads to a reduction in the conductive path and an increase in sensitivity for the strain sensor.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Di Zhao, Qiuhong Cui, Xingyu Zhang, Hongyu Ji, Yuanyuan Hu, Liang Qin, Yanbing Hou, Yufeng Hu, Zhidong Lou, Feng Teng
Summary: Single crystals are ideal carriers for studying the intrinsic properties and structure-property relationships of organic optoelectronic materials due to their lack of grain boundaries, long-range order, and fewer defects. In this study, single crystals of the well-studied organic semiconductor BTR were prepared using a liquid-phase self-assembly method. Morphology-controlled synthesis of one-dimensional (1D) BTR micro-ribbons and two-dimensional (2D) single-crystal films was achieved by using appropriate solvents and a space-confined method. The high-quality single crystals were used to explore the electrical properties of BTR in field-effect transistors (FET), demonstrating significantly improved hole mobility compared to spin-coated films.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Engineering, Electrical & Electronic
Kuan Ju, Shuo Weng, Chun Li, Lihui Zhao, Bo Li, Yue Hu, Yang Gao, Fuzhen Xuan
Summary: This paper presents an intelligent monitoring method for continuous monitoring of dynamic load parameters and load recognition in hydrogen-based fuel cell vehicles (HFCVs) using carbon-based strain sensor, data acquisition and wireless transmission embedded unit, and machine learning. The research shows that this method can effectively recognize different road conditions and optimize the structure of the deep neural network.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
