Infomat最新文献_第10页

Frequency converting and digital modulation of light derived from lanthanide for signal encoding and logic computing 对来自镧系元素的光进行频率转换和数字调制，以实现信号编码和逻辑运算

IF 22.7 1区材料科学

Infomat Pub Date : 2024-04-11 DOI: 10.1002/inf2.12547

Haisheng Chen, Jiaying Shen, Xiaona Du, Songhua Cai, Feng Guo, Weng Fu Io, Tianhong Zhou, Zhengang Dong, Taiyu Bian, Jiaxing Guo, Weiwei Liu, Yang Zhang, Zhenping Wu, Jianhua Hao

{"title":"Frequency converting and digital modulation of light derived from lanthanide for signal encoding and logic computing","authors":"Haisheng Chen, Jiaying Shen, Xiaona Du, Songhua Cai, Feng Guo, Weng Fu Io, Tianhong Zhou, Zhengang Dong, Taiyu Bian, Jiaxing Guo, Weiwei Liu, Yang Zhang, Zhenping Wu, Jianhua Hao","doi":"10.1002/inf2.12547","DOIUrl":"10.1002/inf2.12547","url":null,"abstract":"Modulation of light underpins a central part of modern optoelectronics. Conventional optical modulators based on refractive-index and absorption variation in the presence of an electric field serve as the workhorse for diverse photonic technologies. However, these approaches based on electro-refraction or electro-absorption effect impose limitations on frequency converting and signal amplification. Lanthanide-activated phosphors offer a promising platform for nonlinear frequency conversion with an abundant spectrum. Here, we propose a novel approach to achieve frequency conversion and digital modulation of light signal by coupling lanthanide luminescence with an electrically responsive ferroelectric host. The technological benefits of such paradigm-shifting solution are highlighted by demonstrating a quasi-continuous and enhancement of the lanthanide luminescence. The ability to locally manipulate light emission can convert digital information signals into visible waveforms, and visualize electrical logic and arithmetic operations. The proof-of-concept device exhibits perspectives for developing light-compatible logic functions. These results pave the way to design more controllable lanthanide photonics with desired opto-electronic coupling.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 7","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12547","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140590184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning-assisted wearable sensor array for comprehensive ammonia and nitrogen dioxide detection in wide relative humidity range 机器学习辅助可穿戴传感器阵列，用于在宽相对湿度范围内全面检测氨气和二氧化氮

IF 22.7 1区材料科学

Infomat Pub Date : 2024-04-10 DOI: 10.1002/inf2.12544

Yiwen Li, Shuai Guo, Boyi Wang, Jianguo Sun, Liupeng Zhao, Tianshuang Wang, Xu Yan, Fangmeng Liu, Peng Sun, John Wang, Swee Ching Tan, Geyu Lu

{"title":"Machine learning-assisted wearable sensor array for comprehensive ammonia and nitrogen dioxide detection in wide relative humidity range","authors":"Yiwen Li, Shuai Guo, Boyi Wang, Jianguo Sun, Liupeng Zhao, Tianshuang Wang, Xu Yan, Fangmeng Liu, Peng Sun, John Wang, Swee Ching Tan, Geyu Lu","doi":"10.1002/inf2.12544","DOIUrl":"10.1002/inf2.12544","url":null,"abstract":"The fast booming of wearable electronics provides great opportunities for intelligent gas detection with improved healthcare of mining workers, and a variety of gas sensors have been simultaneously developed. However, these sensing systems are always limited to single gas detection and are highly susceptible to the inference of ubiquitous moisture, resulting in less accuracy in the analysis of gas compositions in real mining conditions. To address these challenges, we propose a synergistic strategy based on sensor integration and machine learning algorithms to realize precise NH3 and NO2 gas detections under real mining conditions. A wearable sensing array based on the graphene and polyaniline composite is developed to largely enhance the sensitivity and selectivity under mixed gas conditions. Further introduction of backpropagation neural network (BP-NN) and partial least squares (PLS) algorithms could improve the accuracy of gas identification and concentration prediction and settle the inference of moisture, realizing over 99% theoretical prediction level on NH3 and NO2 concentrations within a wide relative humidity range, showing great promise in real mining detection. As proof of concept, a wireless wearable bracelet, integrated with sensing arrays and machine-learning algorithms, is developed for wireless real-time warning of hazardous gases in mines under different humidity conditions.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 6","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12544","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140590196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced charge transport in 2D inorganic molecular crystals constructed with charge-delocalized molecules 用电荷定位分子构建的二维无机分子晶体中的增强电荷传输

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-29 DOI: 10.1002/inf2.12538

Jie Wu, Yan Zeng, Xin Feng, Yiran Ma, Pengyu Li, Chunlei Li, Teng Liu, Shenghong Liu, Yinghe Zhao, Huiqiao Li, Lang Jiang, Yuanping Yi, Tianyou Zhai

{"title":"Enhanced charge transport in 2D inorganic molecular crystals constructed with charge-delocalized molecules","authors":"Jie Wu, Yan Zeng, Xin Feng, Yiran Ma, Pengyu Li, Chunlei Li, Teng Liu, Shenghong Liu, Yinghe Zhao, Huiqiao Li, Lang Jiang, Yuanping Yi, Tianyou Zhai","doi":"10.1002/inf2.12538","DOIUrl":"10.1002/inf2.12538","url":null,"abstract":"Outstanding charge transport in molecular crystals is of great importance in modern electronics and optoelectronics. The widely adopted strategies to enhance charge transport, such as restraining intermolecular vibration, are mostly limited to organic molecules, which are nearly inoperative in 2D inorganic molecular crystals currently. In this contribution, charge transport in 2D inorganic molecular crystals is improved by integrating charge-delocalized Se8 rings as building blocks, where the delocalized electrons on Se8 rings lift the intermolecular orbitals overlap, offering efficient charge transfer channels. Besides, α-Se flakes composed of charge-delocalized Se8 rings possess small exciton binding energy. Benefitting from these, α-Se flake exhibits excellent photodetection performance with an ultrafast response rate (~5 μs) and a high detectivity of 1.08 × 1011 Jones. These findings contribute to a deeper understanding of the charge transport of 2D inorganic molecular crystals composed of electron-delocalized inorganic molecules and pave the way for their potential application in optoelectronics.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 7","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12538","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Near-infrared emitting metal halide materials: Luminescence design and applications 近红外发光金属卤化物材料：发光设计与应用

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-28 DOI: 10.1002/inf2.12542

Dongjie Liu, Peipei Dang, Guodong Zhang, Hongzhou Lian, Guogang Li, Jun Lin

{"title":"Near-infrared emitting metal halide materials: Luminescence design and applications","authors":"Dongjie Liu, Peipei Dang, Guodong Zhang, Hongzhou Lian, Guogang Li, Jun Lin","doi":"10.1002/inf2.12542","DOIUrl":"10.1002/inf2.12542","url":null,"abstract":"Near-infrared (NIR) luminescent metal halide (LMH) materials have attracted great attention in various optoelectronic applications due to their low-temperature solution-processable synthesis, abundant crystallographic/electronic structures, and unique optoelectronic properties. However, some challenges still remain in their luminescence design, performance improvement, and application assignments. This review systematically summarizes the development of NIR LMHs through classifying NIR luminescent origins into four major categories: band-edge emission, self-trapped exciton (STE) emission, ion emission, and defect-related emission. The luminescence mechanisms of different types of NIR LMHs are discussed in detail by analyzing typical examples. Reasonable strategies for designing and optimizing luminescence/optoelectronic properties of NIR LMHs are summarized, including bandgap engineering, self-trapping state engineering, chemical composition modification, energy transfer, and other auxiliary strategies such as improvement of synthesis scheme and post-processing. Furthermore, application prospects based on the optoelectronic devices are revealed, including phosphor-converted light-emitting diodes (LEDs), electroluminescent LEDs, photodetectors, solar cells, and x-ray scintillators, as well as demonstrations of some related practical applications. Finally, the existing challenges and future perspectives on the development of NIR LMH materials are critically proposed. This review aims to provide general understanding and guidance for the design of high-performance NIR LMHs materials.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 5","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12542","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140325062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An intelligent self-powered life jacket system integrating multiple triboelectric fiber sensors for drowning rescue 用于溺水救援的集成多个三电导纤维传感器的智能自供电救生衣系统

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-26 DOI: 10.1002/inf2.12534

Yiping Zhang, Chengyu Li, Chuanhui Wei, Renwei Cheng, Tianmei Lv, Junpeng Wang, Cong Zhao, Zhaoyang Wang, Fangming Li, Xiao Peng, Minyi Xu, Kai Dong

{"title":"An intelligent self-powered life jacket system integrating multiple triboelectric fiber sensors for drowning rescue","authors":"Yiping Zhang, Chengyu Li, Chuanhui Wei, Renwei Cheng, Tianmei Lv, Junpeng Wang, Cong Zhao, Zhaoyang Wang, Fangming Li, Xiao Peng, Minyi Xu, Kai Dong","doi":"10.1002/inf2.12534","DOIUrl":"10.1002/inf2.12534","url":null,"abstract":"The inherent unpredictability of the maritime environment leads to low rates of survival during accidents. Life jackets serve as a crucial safety measure in underwater environments. Nonetheless, most conventional life jackets lack the capability to monitor the wearer's underwater body movements, impeding their effectiveness in rescue operations. Here, we present an intelligent self-powered life jacket system (SPLJ) composed of a wireless body area sensing network, a set of deep learning analytics, and a human condition detection platform. Six coaxial core-shell structure triboelectric fiber sensors with high sensitivity, stretchability, and flexibility are integrated into this system. Additionally, a portable integrated circuit module is incorporated into the SPLJ to facilitate real-time monitoring of the wearer's movement. Moreover, by leveraging the deep-learning-assisted data analytics and establishing a robust correlation between the wearer's movements and condition, we have developed a comprehensive system for monitoring drowning individuals, achieving an outstanding recognition accuracy of 100%. This groundbreaking work introduces a fresh approach to underwater intelligent survival devices, offering promising prospects for advancing underwater smart wearable devices in rescue operations and the development of ocean industry.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 5","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12534","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-term and short-term plasticity independently mimicked in highly reliable Ru-doped Ge2Sb2Te5 electronic synapses 在高度可靠的掺 Ru 的 Ge2Sb2Te5 电子突触中独立模拟长期和短期可塑性

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-26 DOI: 10.1002/inf2.12543

Qiang Wang, Yachuan Wang, Yankun Wang, Luyue Jiang, Jinyan Zhao, Zhitang Song, Jinshun Bi, Libo Zhao, Zhuangde Jiang, Jutta Schwarzkopf, Shengli Wu, Bin Zhang, Wei Ren, Sannian Song, Gang Niu

{"title":"Long-term and short-term plasticity independently mimicked in highly reliable Ru-doped Ge2Sb2Te5 electronic synapses","authors":"Qiang Wang, Yachuan Wang, Yankun Wang, Luyue Jiang, Jinyan Zhao, Zhitang Song, Jinshun Bi, Libo Zhao, Zhuangde Jiang, Jutta Schwarzkopf, Shengli Wu, Bin Zhang, Wei Ren, Sannian Song, Gang Niu","doi":"10.1002/inf2.12543","DOIUrl":"10.1002/inf2.12543","url":null,"abstract":"In order to fulfill the complex cognitive behaviors in neuromorphic systems with reduced peripheral circuits, the reliable electronic synapses mimicked by single device that achieves diverse long-term and short-term plasticity are essential. Phase change random access memory (PCRAM) is of great potential for artificial synapses, which faces, however, difficulty to realize short-term plasticity due to the long-lasting resistance drift. This work reports the ruthenium-doped Ge2Sb2Te5 (RuGST) based PCRAM, demonstrating a series of synaptic behaviors of short-term potentiation, pair-pulse facilitation, long-term depression, and short-term plasticity in the same single device. The optimized RuGST electronic synapse with the high transformation temperature of hexagonal phase >380°C, the outstanding endurance >108 cycles, the low resistance drift factor of 0.092, as well as the extremely high linearity with correlation coefficients of 0.999 and 0.976 in parts of potentiation and depression. Further investigations also go insight to mechanisms of Ru doping according to thorough microstructure characterization, revealing that Ru dopant is able to enter GST lattices thus changing and stabilizing atomic arrangement of GST. This leads to the short-term plasticity realized by RuGST PCRAM. Eventually, the proposed RuGST electronic synapses performs a high accuracy of ~94.1% in a task of image recognition of CIFAR-100 database using ResNet 101. This work promotes the development of PCRAM platforms for large-scale neuromorphic systems.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 8","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12543","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover image 封面图片

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-25 DOI: 10.1002/inf2.12437

Ken Aldren S. Usman, Jizhen Zhang, Kevinilo P. Marquez, Mia Angela N. Judicpa, Peter A. Lynch, Annabelle Bedford, Babak Anasori, Joselito M. Razal

引用次数: 0

Back cover image 封底图片

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-25 DOI: 10.1002/inf2.12541

Chunmei Tang, Yao Yao, Ning Wang, Xiaohan Zhang, Fangyuan Zheng, Lei Du, Dongxiang Luo, Yoshitaka Aoki, Siyu Ye

引用次数: 0

The mechanism of room-temperature oxidation of a HF-etched Ti3C2Tx MXene determined via environmental transmission electron microscopy and molecular dynamics 通过环境透射电子显微镜和分子动力学确定高频蚀刻 Ti3C2Tx MXene 的室温氧化机理

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-11 DOI: 10.1002/inf2.12536

Yuying Liu, Zhihao Shi, Tingbin Liang, Dehui Zheng, Zhichao Yang, Zhen Wang, Jian Zhou, Shuangbao Wang

{"title":"The mechanism of room-temperature oxidation of a HF-etched Ti3C2Tx MXene determined via environmental transmission electron microscopy and molecular dynamics","authors":"Yuying Liu, Zhihao Shi, Tingbin Liang, Dehui Zheng, Zhichao Yang, Zhen Wang, Jian Zhou, Shuangbao Wang","doi":"10.1002/inf2.12536","DOIUrl":"10.1002/inf2.12536","url":null,"abstract":"The oxidation chemistry of two-dimensional transition metal carbide MXenes has brought new research significance to their protection and application. However, the oxidation behavior and degradation mechanism of MXenes, in particular with time under oxygen conditions at room temperature, remain largely unexplored. Here, several experimental and theoretical techniques are used to determine a very early stage of the oxidation mechanism of HF-etched Ti3C2Tx (a major member of MXenes and Tx = surface functional groups) in an oxygen environment at room temperature. Aberration-corrected environmental transmission electron microscopy coupled with reactive molecular dynamics simulations show that the crystal plane-dependent oxidation rate of Ti3C2Tx and oxide expansion are attributed to differences in the coordination and charge of superficial Ti atoms, and the existence of the channels between neighboring MXene layers on the different crystal planes. The complementary x-ray photoelectron spectroscopy and Raman spectroscopy analyses indicate that the anatase and a tiny fraction of brookite TiO2 successively precipitate from the amorphous region of oxidized Ti3C2Tx, grow irregularly and transform to rutile TiO2. Our study reveals the early-stage structural evolution of MXenes in the presence of oxygen and facilitates further tailoring of the MXene performance employing oxidation strategy.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 7","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12536","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140127345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transmittance contrast-induced photocurrent: A general strategy for self-powered photodetectors based on MXene electrodes 透射对比诱导光电流：基于 MXene 电极的自供电光电探测器的一般策略

IF 22.7 1区材料科学

Infomat Pub Date : 2024-03-07 DOI: 10.1002/inf2.12540

Hailong Ma, Huajing Fang, Jiaqi Li, Ziqing Li, Xiaosheng Fang, Hong Wang

{"title":"Transmittance contrast-induced photocurrent: A general strategy for self-powered photodetectors based on MXene electrodes","authors":"Hailong Ma, Huajing Fang, Jiaqi Li, Ziqing Li, Xiaosheng Fang, Hong Wang","doi":"10.1002/inf2.12540","DOIUrl":"10.1002/inf2.12540","url":null,"abstract":"The regulation of carrier generation and transport by Schottky junctions enables effective optoelectronic conversion in optoelectronic devices. A simple and general strategy to spontaneously generate photocurrent is of great significance for self-powered photodetectors but is still being pursued. Here, we propose that a photocurrent can be induced at zero bias by the transmittance contrast of MXene electrodes in MXene/semiconductor Schottky junctions. Two MXene electrodes with a large transmittance contrast (84%) between the thin and thick zones were deposited on the surface of a semiconductor wafer using a simple and robust solution route. Kelvin probe force microscopy tests indicated that the photocurrent at zero bias could be attributed to asymmetric carrier generation and transport between the two Schottky junctions under illumination. As a demonstration, the MXene/GaN ultraviolet (UV) photodetector exhibits excellent performance superior to its counterpart without transmittance contrast, including high responsivity (81 mA W–1), fast response speed (less than 31 and 29 ms) and ultrahigh on/off ratio (1.33 × 106), and good UV imaging capability. Furthermore, this strategy has proven to be universal for first- to third-generation semiconductors such as Si and GaAs. These results provide a facile and cost-effective route for high-performance self-powered photodetectors and demonstrate the versatile and promising applications of MXene electrodes in optoelectronics.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"6 5","pages":""},"PeriodicalIF":22.7,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12540","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140074862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0