Advanced Materials & Technologies最新文献

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Liquid Metal‐Based Multimodal Wearable Sensor Platform Enabled by Highly Accessible Microfabrication of PDMS with Tuned Mechanical Properties 基于液态金属的多模态可穿戴传感器平台,由具有可调机械特性的 PDMS 高可达微细加工实现
Advanced Materials & Technologies Pub Date : 2024-08-16 DOI: 10.1002/admt.202400859
Byungjin Kim, Sangmin Lee, Jae In Kim, Dong Hyeon Lee, Bon‐Jae Koo, Seong‐Geon Kim, Seyeong Ryu, Byungchul Kim, Min‐Ho Seo, Joonsoo Jeong
{"title":"Liquid Metal‐Based Multimodal Wearable Sensor Platform Enabled by Highly Accessible Microfabrication of PDMS with Tuned Mechanical Properties","authors":"Byungjin Kim, Sangmin Lee, Jae In Kim, Dong Hyeon Lee, Bon‐Jae Koo, Seong‐Geon Kim, Seyeong Ryu, Byungchul Kim, Min‐Ho Seo, Joonsoo Jeong","doi":"10.1002/admt.202400859","DOIUrl":"https://doi.org/10.1002/admt.202400859","url":null,"abstract":"The seamless integration of wearable devices into user‐friendly and cost‐effective healthcare systems requires constituent materials with high degrees of flexibility, stretchability, and adhesive properties without compromising performance during dynamic body movements. This study proposes a liquid metal (LM)‐based multimodal skin‐mountable sensor platform using polydimethylsiloxane tuned for enhanced stretchability and stickiness (sPDMS) to fully leverage the LM's deformability. A highly accessible end‐to‐end fabrication approach is proposed for multifunctional LM sensors from modeling to fabrication and packaging, all achieved without the need for cleanroom facilities or special equipment. The LM‐based facile fabrication process tailored for sPDMS enables an adhesive‐free sensor patch with microfluidic channels of 100 µm width and stretchability up to 100%. A new analytical model provides enhanced estimation on the electromechanical behavior of LM channels compared with existing models. The funnel‐assisted LM filling and tape‐based channel sealing methods enable simple packaging of LM channels with robust external interconnection and direct skin‐interfaced monitoring. The feasibility of this healthcare platform is demonstrated through a multimodal sensor patch with electromechanical and electrophysiological functionalities. The proposed technology addresses current challenges in the cost and complexity of microfabrication, expanding the boundaries of wearable devices for highly accessible and personalized healthcare devices.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D Printed Miniaturized Magnetic Actuator for Micro‐Area Temperature Sensing 用于微区温度传感的 3D 打印微型磁性致动器
Advanced Materials & Technologies Pub Date : 2024-08-16 DOI: 10.1002/admt.202400369
Sida Peng, Shengzhi Sun, Yi Zhu, Jianrong Qiu, Huayong Yang
{"title":"3D Printed Miniaturized Magnetic Actuator for Micro‐Area Temperature Sensing","authors":"Sida Peng, Shengzhi Sun, Yi Zhu, Jianrong Qiu, Huayong Yang","doi":"10.1002/admt.202400369","DOIUrl":"https://doi.org/10.1002/admt.202400369","url":null,"abstract":"Actuators containing sensors are developed for various applications. However, it is still challenging to equip miniaturized high‐precision sensors with actuators at the micrometer scale to achieve micro‐environment detection. Here, a two‐in‐one processing strategy to construct a sensor‐equipped magnetic actuator (SEMA) is proposed. The design of magnetic actuators is continuously optimized to achieve less resistance and faster acceleration. Besides, the temperature‐dependent properties of semiconductor quantum dots (QDs) are used to fabricate the temperature‐sensitive unit (TSU), with a sensitivity of up to 111 pm °C<jats:sup>−1</jats:sup>. Finally, as a proof of concept, the real‐time temperature detection of arbitrary micro‐area in microchannels is achieved. This method of equipping sensors with microactuators will bring many potential applications in microenvironment sensing, micro‐mechanical manipulating, and microcargo transporting.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanopores‐templated CNT/PDMS Microcolumn Substrate for the Fabrication of Wearable Triboelectric Nanogenerator Sensors to Monitor Human Pulse and Blood Pressure 用于制造监测人体脉搏和血压的可穿戴式三电纳米发电机传感器的纳米孔模板 CNT/PDMS 微柱基底
Advanced Materials & Technologies Pub Date : 2024-08-15 DOI: 10.1002/admt.202400749
Tao Zhang, Chuanjie Yao, Xingyuan Xu, Zhibo Liu, Zhengjie Liu, Tiancheng Sun, Shuang Huang, Xinshuo Huang, Shady Farah, Peng Shi, Hui‐jiuan Chen, Xi Xie
{"title":"Nanopores‐templated CNT/PDMS Microcolumn Substrate for the Fabrication of Wearable Triboelectric Nanogenerator Sensors to Monitor Human Pulse and Blood Pressure","authors":"Tao Zhang, Chuanjie Yao, Xingyuan Xu, Zhibo Liu, Zhengjie Liu, Tiancheng Sun, Shuang Huang, Xinshuo Huang, Shady Farah, Peng Shi, Hui‐jiuan Chen, Xi Xie","doi":"10.1002/admt.202400749","DOIUrl":"https://doi.org/10.1002/admt.202400749","url":null,"abstract":"Cardiovascular diseases, which cause ≈10 million deaths annually, underscored the importance of effective blood pressure (BP) monitoring. Traditional devices, however, faced limitations that hindered the adoption of continuous monitoring technologies. Flexible triboelectric nanogenerator (TENG) sensors, known for their rapid response, high sensitivity, and cost‐effectiveness, presented a promising alternative. Enhancing their ability to capture weak biological signals can be achieved by optimizing the material's friction coefficient and expanding the effective contact area. In this work, a flexible microcolumn‐based TENG sensor with high sensitivity is developed by fabricating microcolumns of carbon nanotube/polydimethylsiloxane (CNT/PDMS) composites on porous polyethylene terephthalate (PET) membranes using template etching and integrating these with fluorinated ethylene propylene (FEP) film. With the enhancement of microcolumn structure, the sensor possessed high sensitivity and good response, enabling it to effectively and accurately detect subtle physiological changes such as radial pulses and fingertip pulsations, with pulse wave signals highly consistent with the interbeat intervals of electrocardiograms. Leveraging these capabilities, a non‐invasive dynamic BP monitoring system capable of continuous beat‐to‐beat BP monitoring is developed. This advancement enables easier and more effective health monitoring, empowering individuals to better manage their health and improve personalized medical care.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antifreeze Polyvinyl Alcohol Organohydrogel Sensors Containing Polypyrrole Nanowires Self‐Assembled onto Graphene Oxide Nanoplatelets with High Electrical Conductivity and Improved Mechanical Properties 防冻聚乙烯醇有机水凝胶传感器,含自组装在氧化石墨烯纳米片上的聚吡咯纳米线,具有高导电性和更好的机械性能
Advanced Materials & Technologies Pub Date : 2024-08-14 DOI: 10.1002/admt.202400970
Pengcheng Yang, Junwei Bai, Federico Olivieri, Chiara Santillo, Rachele Castaldo, Gennaro Gentile, Junhua Zhang, Marino Lavorgna, Giovanna G. Buonocore
{"title":"Antifreeze Polyvinyl Alcohol Organohydrogel Sensors Containing Polypyrrole Nanowires Self‐Assembled onto Graphene Oxide Nanoplatelets with High Electrical Conductivity and Improved Mechanical Properties","authors":"Pengcheng Yang, Junwei Bai, Federico Olivieri, Chiara Santillo, Rachele Castaldo, Gennaro Gentile, Junhua Zhang, Marino Lavorgna, Giovanna G. Buonocore","doi":"10.1002/admt.202400970","DOIUrl":"https://doi.org/10.1002/admt.202400970","url":null,"abstract":"Conductive hydrogels exhibit significant potential for flexible electronics owing to their exceptional flexibility, resistance to deformation, and high conductivity. However, there is a critical need to develop hydrogels that can withstand extremely low temperatures while exhibiting good mechanical properties. In this study, carboxyl‐modified polyvinyl alcohol (PVA) as the gel matrix, dimethylsulfoxide and water as a mixed solvent solution, and graphene oxide (GO) assembled polypyrrole (PPy) nanowires are used to prepare a new type of antifreeze conductive organohydrogel (PGOPPy). The PGOPPy organohydrogel demonstrates outstanding antifreeze properties, retaining its flexibility at temperatures as low as −75 °C. It exhibits a fracture strength of 0.80 MPa and an elongation at break of 436% at room temperature. Remarkably, after being stored at room temperature for 15 days, the diameter of the PGOPPy organohydrogel changes only by 4%. Moreover, PGOPPy shows high electrical conductivity, up to 1.07 S m<jats:sup>−1</jats:sup>, and exhibits variable conductivity in response to mechanical deformation, with a stable response over cyclic deformations, allowing its use as a sensor to monitor body movements. Results demonstrate that the developed material is very promising as an effective sensor technology for use in extremely cold environments. Moreover, this work provides a general method for preparing antifreeze organhydrogels using water and dimethylsulfoxide as mixed solvents.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anti−Reflection Metamaterials with Phase Gradient Index Generate Surface Waves for Radar Stealth in the Microwave Regime 具有相位梯度指数的抗反射超材料可在微波区产生雷达隐身用表面波
Advanced Materials & Technologies Pub Date : 2024-08-14 DOI: 10.1002/admt.202400276
Lingxi Huang, Rongzhi Zhao, Lianze Ji, Jiachang Ruan, Xuefeng Zhang
{"title":"Anti−Reflection Metamaterials with Phase Gradient Index Generate Surface Waves for Radar Stealth in the Microwave Regime","authors":"Lingxi Huang, Rongzhi Zhao, Lianze Ji, Jiachang Ruan, Xuefeng Zhang","doi":"10.1002/admt.202400276","DOIUrl":"https://doi.org/10.1002/admt.202400276","url":null,"abstract":"Although the conversion of propagating waves into surface waves is anticipated to introduce a novel degree of freedom for radar stealth materials, the manipulation of wavelength and traveling direction of surface waves at small phase gradients remains unclear. Here the aforementioned conversion is demonstrated utilizing a metamaterial composed of carbonyl iron powders, where the momentum mismatch is compensated by the material and the phase gradient index of the aligned meta−atoms. Surface waves are generated in the direction of the phase gradient within a phase span of 180°. The metamaterials with 5−level metastructure (5x:1x) generate surface waves with two wavelengths, and get the <jats:italic>ξ/k<jats:sub>0</jats:sub></jats:italic> value (ratio of the phase gradient index to the wave vectors of propagating wave) of 7.5 and 4.32, respectively. Furthermore, the dual phase gradient metastructure possesses the capability to alter the trajectory of the leaky microwave, converting it into a waveform resembling that of a vortex, while simultaneously preserving the integrity of surface waves. The sample achieves an effective absorption bandwidth of 5.67–7.96 and 20.19–21.10 GHz with an optimal absorption peak of −40.77 dB at 6.87 GHz. Present study develops a novel mechanism to improve the radar stealth properties of microwave absorption materials.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Liquid Metal Hydrothermal Rheological Modification Method for High Performance Gallium‐Coated Carbon Microparticle Composites 高性能镓包覆碳微颗粒复合材料的液态金属水热流变学改性方法
Advanced Materials & Technologies Pub Date : 2024-08-13 DOI: 10.1002/admt.202400737
Xiao‐Ping Zhou, Zheng Luo, Dong‐Xu Yang
{"title":"Liquid Metal Hydrothermal Rheological Modification Method for High Performance Gallium‐Coated Carbon Microparticle Composites","authors":"Xiao‐Ping Zhou, Zheng Luo, Dong‐Xu Yang","doi":"10.1002/admt.202400737","DOIUrl":"https://doi.org/10.1002/admt.202400737","url":null,"abstract":"Gallium‐based liquid metal (LM) is widely used in flexible electronics, optics, and green synthesis due to its excellent conductivity, flexibility, and self‐healing capabilities. However, LM's inherent fluidity and high surface tension greatly limit their practical applications. Therefore, there is a strong demand for developing LM composites that are easy to control and exhibit outstanding performance when used flexibly. In this work, the LM hydrothermal rheological modification method is proposed to synthesize Ga‐coated carbon microparticles, and the highly miscible rheological modification of LM is realized by mixing LM and Ga‐coated carbon microparticles. Including carbon microparticles in the LM improves the mechanical strength of the composite, thereby overcoming the limitation of the LM that has a low mechanical strength. By controlling the volume fraction of carbon microparticles in LM, electrical conductivity is increased by 30% and thermal conductivity by more than 2.0 times that of pure LM. In addition, the fundamental interfacial wetting behavior is demonstrated at the interface of LM and Ga<jats:sub>2</jats:sub>O<jats:sub>3,</jats:sub> and the rheological modification mechanism of LM is explained by carbon particles. This work presents a novel method for preparing high‐performance polymer materials and discusses their broad potential applications in thermal interface materials, wireless energy transfer, and flexible electronics.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AI‐Assisted Plasmonic Enhanced Colorimetric Fluidic Device for Hydrogen Peroxide Detection from Cancer Cells 用于检测癌细胞过氧化氢的人工智能辅助质子增强比色流体装置
Advanced Materials & Technologies Pub Date : 2024-08-12 DOI: 10.1002/admt.202400633
Carolina del Real Mata, Sripadh Guptha Yedire, Mahsa Jalali, Roozbeh Siavash Moakhar, Tamer AbdElFatah, Jashandeep Kaur, Ziwei He, Sara Mahshid
{"title":"AI‐Assisted Plasmonic Enhanced Colorimetric Fluidic Device for Hydrogen Peroxide Detection from Cancer Cells","authors":"Carolina del Real Mata, Sripadh Guptha Yedire, Mahsa Jalali, Roozbeh Siavash Moakhar, Tamer AbdElFatah, Jashandeep Kaur, Ziwei He, Sara Mahshid","doi":"10.1002/admt.202400633","DOIUrl":"https://doi.org/10.1002/admt.202400633","url":null,"abstract":"Hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) is an essential molecule to various physiological processes and is commonly used for the detection and monitoring of glucose and cell viability. Furthermore, it is identified as a signal of oncogenic growth due to its widespread presence within the cancer cell environment. However, the low concentrations of H<jats:sub>2</jats:sub>O<jats:sub>2 </jats:sub>released by cancer cells' metabolism challenge current detection methods' capabilities and their practicality for translation to clinical applications. Colorimetric assays with simple readouts are a promising solution, provided that their sensitivity and rapidity in detecting H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub> improve. Here, a plasmonic enhanced nanopatterned platform is proposed coupled with an Amplex Red assay to monitor the color change of H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub> released from cancer cells. The nanopatterned platform embedded into a multiplexed microfluidic device enhances the kinetics of the reaction ≈7 times. This approach has reached a limit of detection of 1 p<jats:sc>m</jats:sc> when tested in breast (MCF‐7) and prostate (PC‐3) cancer media. The collected color images are processed and analyzed by a machine learning algorithm that categorizes them into “high” or “low‐to‐no” concentrations of H<jats:sub>2</jats:sub>O<jats:sub>2 </jats:sub>with 91% accuracy. This study is a step toward developing a device for highly sensitive H<jats:sub>2</jats:sub>O<jats:sub>2 </jats:sub>detection that is easily adaptable, user‐friendly, portable, and automated.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toughening Ceramic Joints through Strategic Fracture Path Control 通过战略性断裂路径控制强化陶瓷接头
Advanced Materials & Technologies Pub Date : 2024-08-12 DOI: 10.1002/admt.202400535
Jian Feng, Marion Herrmann, Antonio Hurtado
{"title":"Toughening Ceramic Joints through Strategic Fracture Path Control","authors":"Jian Feng, Marion Herrmann, Antonio Hurtado","doi":"10.1002/admt.202400535","DOIUrl":"https://doi.org/10.1002/admt.202400535","url":null,"abstract":"Ceramic-on-ceramic joints are notorious for their inherent brittleness, posing challenges for high-performance applications. To address this, a novel approach is proposed to enhance the involvement of filler metals during fracture. This study investigates the controlled initiation and propagation of cracks in Al<sub>2</sub>O<sub>3</sub>–Al<sub>2</sub>O<sub>3</sub> joints through a strategic combination of laser pre-cracking, laser patterning, and laser active brazing techniques. By introducing pre-cracking and African daisy-like patterning, crack propagation dynamics are altered, with cracks initially confined within pre-crack regions before navigating through pattern intrusions. Additionally, laser active brazing effectively managed titanium diffusion, optimizing interface strength control. Evaluation via SEVNB tests demonstrated a significant enhancement in fracture toughness, achieving maximal 25.6 ± 4.6 MPa·m<sup>0.5</sup> compared to ≈3–5 MPa·m<sup>0.5</sup> for alumina ribbons. This integrated approach offers precise control over fracture paths, thereby augmenting the performance of ceramic-on-ceramic joints, and holds promise for advancing their applications in demanding environments.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advanced Electrochromic Energy Storage Devices Based on Conductive Polymers 基于导电聚合物的先进电致变色储能设备
Advanced Materials & Technologies Pub Date : 2024-08-07 DOI: 10.1002/admt.202301969
Xiaoyang Chen, Qifan Liu, Lukuan Cheng, Shiqiang Zhou, Lina Chen, Guojin Liang, Jun Wei, Funian Mo
{"title":"Advanced Electrochromic Energy Storage Devices Based on Conductive Polymers","authors":"Xiaoyang Chen, Qifan Liu, Lukuan Cheng, Shiqiang Zhou, Lina Chen, Guojin Liang, Jun Wei, Funian Mo","doi":"10.1002/admt.202301969","DOIUrl":"https://doi.org/10.1002/admt.202301969","url":null,"abstract":"As the demand for multifunctional optoelectronic devices rises, the integration of electrochromic and energy storage functionalities represents a cutting‐edge pursuit in the electrochromic devices domain. The realm of conductive polymer‐based electrochromic energy storage devices (EESDs) stands as a vibrant area marked by ongoing research and development. Despite a plethora of individual research articles exploring various facets within this domain, there exists a conspicuous dearth of comprehensive reviews systematically scrutinizing the advancements, challenges, and potentials intrinsic to these systems. To fill this void, this review systematically outlines the latest progressions in EESDs centered on conductive conjugated polymers (CPs). The review commences with a thorough exploration of the foundational principles underpinning EESDs, encompassing their operational mechanisms, device configurations, and representative key performance indicators. Furthermore, the review categorizes diverse conductive polymers, shedding light on the latest advancements in EESD research utilizing these specific CP variants. This in‐depth analysis centers on their collaborative role in shaping electrochromic energy storage devices. Overall, this review is poised to captivate the interest of researchers toward state‐of‐the‐art CP‐based EESDs, establishing these pioneering technologies as pivotal contenders in defining the forthcoming landscape of wearable electronics, portable devices, and advanced energy storage systems.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Very High Temperature Hall Sensors in a Wafer‐Scale 4H‐SiC Technology 采用晶圆级 4H-SiC 技术的超高温霍尔传感器
Advanced Materials & Technologies Pub Date : 2024-08-07 DOI: 10.1002/admt.202400046
Hesham Okeil, Tobias Erlbacher, Gerhard Wachutka
{"title":"Very High Temperature Hall Sensors in a Wafer‐Scale 4H‐SiC Technology","authors":"Hesham Okeil, Tobias Erlbacher, Gerhard Wachutka","doi":"10.1002/admt.202400046","DOIUrl":"https://doi.org/10.1002/admt.202400046","url":null,"abstract":"4H‐SiC is a key enabler for realizing integrated electronics operating in harsh environments, which exhibit very high temperatures. Through advances in 4H‐SiC process technology, different sensor and circuit types have been demonstrated to operate stable at temperatures as high as 800 °C, paving the way toward harsh‐environment immune smart sensors. In this work, for the first time the operation of ion‐implanted 4H‐SiC Hall sensors realized in a wafer scale Bipolar‐CMOS‐DMOS technology is demonstrated at a wide operation temperature range spanning room temperature up to 500 °C in addition to short‐term operation up to 600 °C. The temperature‐dependent sensor characteristics of 15–22 samples are evaluated in terms of sensitivity and noise. The small inter‐device variations reflect the stability of the used process for very high temperature Hall sensors. The noise‐limited detectivity is further evaluated, revealing a best value of 950 nT/ and a mean detectivity of 1 µT/ at 500 °C. This is the best value reported up to date for very high temperature Hall sensors, besides being the first demonstration of ion‐implanted wide‐bandgap Hall sensors. Overall, the results reflect the potential of the demonstrated Hall sensors for the next generation of integrated magnetic field sensors in harsh environments.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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