npj Flexible Electronics最新文献

Universal in situ supersaturated crystallization enables 3D printable afterglow hydrogel

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-02-01 DOI: 10.1038/s41528-024-00377-1

Shuman Zhang, Yunliang Ji, Shiyi Chen, Siming Chen, Dongjie Xiao, Cheng Chen, Guangyao Guo, Mingjian Zeng, Weiguang Wang, Jingyu Zhang, Hui Li, Ye Tao, Gaozhan Xie, Huanhuan Li, Yizhou Zhang, Runfeng Chen, Wei Huang

{"title":"Universal in situ supersaturated crystallization enables 3D printable afterglow hydrogel","authors":"Shuman Zhang, Yunliang Ji, Shiyi Chen, Siming Chen, Dongjie Xiao, Cheng Chen, Guangyao Guo, Mingjian Zeng, Weiguang Wang, Jingyu Zhang, Hui Li, Ye Tao, Gaozhan Xie, Huanhuan Li, Yizhou Zhang, Runfeng Chen, Wei Huang","doi":"10.1038/s41528-024-00377-1","DOIUrl":"https://doi.org/10.1038/s41528-024-00377-1","url":null,"abstract":"Stretchable afterglow materials have garnered widespread attention owing to their unique combination of optical properties and mechanical flexibility. However, achieving a crystal environment to suppress the non-radiative transition of triplet excitons poses a challenge in constructing stretchable afterglow materials. Herein, we utilize an in situ supersaturated crystallization strategy to form afterglow microcrystals within a hydrogel matrix. This approach enables afterglow emission with a lifetime of 695 ms while maintaining high stretchability with tensile stress surpassing 398 kPa, extensibility over 400% and a high water content of 65.21%. Moreover, the universal supersaturated crystallization strategy allows for conferring tunable afterglow performance. Successful demonstrations in hydrogel 3D printing and anti-counterfeiting purposes showcase the potential for advanced applications of 3D printable afterglow hydrogels. This investigation provides guidelines for generally designing efficient afterglow hydrogels and addresses the inherent contradiction between flexibility and rigid in stretchable afterglow materials.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":"75 1 1","pages":""},"PeriodicalIF":14.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143071546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The enhanced ferroelectric properties of flexible Hf0.85Ce0.15O2 thin films based on in situ stress regulation

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-31 DOI: 10.1038/s41528-025-00379-7

Jinglin Pang, Tianpeng Duan, Min Liao, Limei Jiang, Yichun Zhou, Qiong Yang, Jiajia Liao, Jie Jiang

引用次数: 0

Disposable and flexible smart electronic tapes for long-term biopotential monitoring

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-30 DOI: 10.1038/s41528-025-00380-0

Jiuwei Gao, Mingwei Hu, Hao Sun, Yuanyuan Wang, Yuan Wei, Weiwei Li, Lu Zheng, Manzhang Xu, Qianbo Lu, Zhiyuan Liu, Hui Yang, Yongtian Wang, Weitao Song, Xuewen Wang, Wei Huang

{"title":"Disposable and flexible smart electronic tapes for long-term biopotential monitoring","authors":"Jiuwei Gao, Mingwei Hu, Hao Sun, Yuanyuan Wang, Yuan Wei, Weiwei Li, Lu Zheng, Manzhang Xu, Qianbo Lu, Zhiyuan Liu, Hui Yang, Yongtian Wang, Weitao Song, Xuewen Wang, Wei Huang","doi":"10.1038/s41528-025-00380-0","DOIUrl":"https://doi.org/10.1038/s41528-025-00380-0","url":null,"abstract":"Long-term biopotential acquisition is of great significance for the early detection and timely treatment of various diseases. Currently, the standard silver/silver chloride (Ag/AgCl) gel electrodes may cause skin irritation when worn for a long time. Repeating the use of electrodes on different individuals can lead to the risk of cross-infection. Here, we propose a smart electronic tape (SET) to acquire biopotentials, in the form of a dry single-sided tape made from a combination of an ultra-stretchable conductive pattern on substrates with different functions. The high stability and durability of the patterned conductors provide accurate and timely acquisition of biopotentials, such as electrocardiograph (ECG) and electromyography (EMG). The strong adhesive behavior of the tape as well as the low-cost manufacturing process allow convenient and long-term wearing in a disposable manner. We anticipate the SET will pioneer next-gen wearable electronics for applications like disease prevention, health monitoring, and human–computer interaction.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":"60 1","pages":""},"PeriodicalIF":14.6,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143056661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microelectrothermoforming (μETF): one-step versatile 3D shaping of flexible microelectronics for enhanced neural interfaces 微电热成形（μETF）：用于增强神经接口的柔性微电子一步通用3D成形

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-22 DOI: 10.1038/s41528-024-00378-0

Dong Hyeon Lee, Younghoon Park, Yoon Seo, Hannah Noh, Hyunbeen Jeong, Jongmo Seo, Min-Ho Seo, Kyungsik Eom, Joonsoo Jeong

{"title":"Microelectrothermoforming (μETF): one-step versatile 3D shaping of flexible microelectronics for enhanced neural interfaces","authors":"Dong Hyeon Lee, Younghoon Park, Yoon Seo, Hannah Noh, Hyunbeen Jeong, Jongmo Seo, Min-Ho Seo, Kyungsik Eom, Joonsoo Jeong","doi":"10.1038/s41528-024-00378-0","DOIUrl":"https://doi.org/10.1038/s41528-024-00378-0","url":null,"abstract":"Increasing the proximity of microelectrode arrays (MEA) to targeted neural tissues can establish efficient neural interfaces for both recording and stimulation applications. This has been achieved by constructing protruding three-dimensional (3D) structures on top of conventional planar microelectrodes via additional micromachining steps. However, this approach adds fabrication complexities and limits the 3D structures to certain shapes. We propose a one-step fabrication of MEAs with versatile microscopic 3D structures via “microelectrothermoforming (μETF)” of thermoplastics, by utilizing 3D-printed molds to locally deform planar MEAs into protruding and recessing shapes. Electromechanical optimization enabled a 3D MEA with 80 μm protrusions and/or recession for 100 μm diameter. Its simple and versatile shaping capabilities are demonstrated by diverse 3D structures on a single MEA. The benefits of 3D MEA are evaluated in retinal stimulation through numerical simulations and ex vivo experiments, confirming a threshold lowered by 1.7 times and spatial resolution enhanced by 2.2 times.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":"103 1","pages":""},"PeriodicalIF":14.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electro-spun nanofibers-based triboelectric nanogenerators in wearable electronics: status and perspectives 可穿戴电子设备中基于电纺纳米纤维的三电纳米发电机：现状与前景

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-16 DOI: 10.1038/s41528-024-00357-5

Deyin Tao, Ping Su, Aiping Chen, Dawei Gu, Mustafa Eginligil, Wei Huang

引用次数: 0

An ultra-low power wake-Up timer compatible with n-FET based flexible technologies 超低功耗唤醒定时器兼容基于n-FET的灵活技术

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-12 DOI: 10.1038/s41528-024-00374-4

D. Narbón, J. L. Soler-Fernández, A. Santos, P. Barquinha, R. Martins, A. Diéguez, J. D. Prades, O. Alonso

引用次数: 0

Operando spin observation elucidating performance-improvement mechanisms during operation of Ruddlesden–Popper Sn-based perovskite solar cells Operando自旋观测阐明了Ruddlesden-Popper锡基钙钛矿太阳能电池运行过程中性能改善机制

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-09 DOI: 10.1038/s41528-024-00376-2

Yizhou Chen, Seira Yamaguchi, Atsushi Sato, Dong Xue, Kazuhiro Marumoto

{"title":"Operando spin observation elucidating performance-improvement mechanisms during operation of Ruddlesden–Popper Sn-based perovskite solar cells","authors":"Yizhou Chen, Seira Yamaguchi, Atsushi Sato, Dong Xue, Kazuhiro Marumoto","doi":"10.1038/s41528-024-00376-2","DOIUrl":"https://doi.org/10.1038/s41528-024-00376-2","url":null,"abstract":"Sn-based perovskite solar cells (PSCs) have attracted attention because of their low environmental impact. Unfortunately, the readily occurring oxidation of Sn2+ inhibits further improvement of their efficiency and stability. Ruddlesden–Popper (RP) Sn-based perovskites are considered promising candidates as absorbers that improve the performance and stability of Sn-based PSCs. However, microscopic understanding of performance-enhancing mechanisms remains insufficient. For this study, electron spin resonance (ESR) spectroscopy measurements were taken of RP Sn-based PSCs with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) hole-transport layers and (BA0.5PEA0.5)2FA3Sn4I13 perovskite layers to clarify the space-charge region formation mechanism at the PEDOT:PSS/(BA0.5PEA0.5)2FA3Sn4I13 interface. These results indicated electron-barrier formation in the (BA0.5PEA0.5)2FA3Sn4I13 layer near the PEDOT:PSS layer. Moreover, the electron barrier was found to be enhanced during device operation. The enhanced interface band bending reduces interface recombination and thereby improves the device's performance. These findings might provide important progress in practical applications of PSCs and might advance the realization of a carbon-neutral society.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":"13 1","pages":""},"PeriodicalIF":14.6,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Giant elasto-optic response of gallium selenide on flexible mica 硒化镓在柔性云母上的巨弹光响应

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2025-01-04 DOI: 10.1038/s41528-024-00375-3

T. Barker, A. Gray, M. P. Weir, J. S. Sharp, A. Kenton, Z. R. Kudrynskyi, H. Rostami, A. Patané

引用次数: 0

Flexible, multimodal device for measurement of body temperature, core temperature, thermal conductivity and water content 用于测量体温、核心温度、导热系数和含水量的灵活的多模态装置

IF 12.3 1区材料科学

npj Flexible Electronics Pub Date : 2024-12-19 DOI: 10.1038/s41528-024-00373-5

Yanbo Du, Chuanli Zhou, Yanhui Feng, Lin Qiu

{"title":"Flexible, multimodal device for measurement of body temperature, core temperature, thermal conductivity and water content","authors":"Yanbo Du, Chuanli Zhou, Yanhui Feng, Lin Qiu","doi":"10.1038/s41528-024-00373-5","DOIUrl":"10.1038/s41528-024-00373-5","url":null,"abstract":"Body core temperature is an important physiological indicator for self-health management and medical diagnosis. However, existing devices always fails to achieve continuous monitoring of core body temperature due to their invasive or motion-restricted measurement principles. Here, a wearable flexible device which can continuously monitor the core body temperature was developed. The flexible device integrated with fourteen temperature sensors and one thermal conductivity sensor on the polydimethylsiloxane substrate can be conformally attached to the human skin. With the wearable data processing module and wireless communication module, the continuous monitoring of the core body temperature for 24 h and the portable monitoring of the skin thermal conductivity were realized using this device. Owing to the annular distribution design of the temperature sensor and the directional heat transfer design of the thermal conductivity sensor, this device is comparable in accuracy and stability compared to standard instruments that require invasive or motion-restricted measurements.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-12"},"PeriodicalIF":12.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00373-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849078","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

Self-defined dual charge percolation networks for solution-processed multithreshold transistors 溶液处理多阈值晶体管的自定义双电荷渗透网络

IF 12.3 1区材料科学

npj Flexible Electronics Pub Date : 2024-12-19 DOI: 10.1038/s41528-024-00372-6

Jung Woo Moon, Seunghan Kim, Jin Hyeon Kim, Sunil V. Barma, Sang Young Jeong, Jinho Keum, Ho Sun Lim, Youngjae Yoo, Han Young Woo, Sae Byeok Jo, Moon Sung Kang, Jeong Ho Cho

{"title":"Self-defined dual charge percolation networks for solution-processed multithreshold transistors","authors":"Jung Woo Moon, Seunghan Kim, Jin Hyeon Kim, Sunil V. Barma, Sang Young Jeong, Jinho Keum, Ho Sun Lim, Youngjae Yoo, Han Young Woo, Sae Byeok Jo, Moon Sung Kang, Jeong Ho Cho","doi":"10.1038/s41528-024-00372-6","DOIUrl":"10.1038/s41528-024-00372-6","url":null,"abstract":"This study demonstrates multithreshold engineering of a solution-processed heterojunction electrochemical transistor using a blend of n-type CdSe tetrapod-shaped nanocrystals (TpNCs) and an n-type polymeric organic semiconductor (OSC). The unique geometry of TpNCs enables a broad concentration range of charge percolation, where charge transfer between TpNC and OSC domains determines multiple threshold voltages. The OSC domain’s threshold voltage shifts from 1 to −1 V as TpNC content increases, while the TpNC domain maintains a threshold above 1.5 V. This allows for stable intermediate states, crucial for multivalued logic operations. Charge percolation and photoluminescence studies show selective charge redistribution, shifting the threshold voltages in the polymer networks. Ternary logic gates, including TNOT, TNAND, and TNOR, based on these heterojunction transistors, were also demonstrated, highlighting the potential of this approach for advanced logic applications.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-10"},"PeriodicalIF":12.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00372-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849077","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