npj Flexible Electronics最新文献_第10页

Ultrasensitive textile strain sensors redefine wearable silent speech interfaces with high machine learning efficiency 超灵敏织物应变传感器重新定义了可穿戴式无声语音接口，具有极高的机器学习效率

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-05-07 DOI: 10.1038/s41528-024-00315-1

Chenyu Tang, Muzi Xu, Wentian Yi, Zibo Zhang, Edoardo Occhipinti, Chaoqun Dong, Dafydd Ravenscroft, Sung-Min Jung, Sanghyo Lee, Shuo Gao, Jong Min Kim, Luigi Giuseppe Occhipinti

{"title":"Ultrasensitive textile strain sensors redefine wearable silent speech interfaces with high machine learning efficiency","authors":"Chenyu Tang, Muzi Xu, Wentian Yi, Zibo Zhang, Edoardo Occhipinti, Chaoqun Dong, Dafydd Ravenscroft, Sung-Min Jung, Sanghyo Lee, Shuo Gao, Jong Min Kim, Luigi Giuseppe Occhipinti","doi":"10.1038/s41528-024-00315-1","DOIUrl":"10.1038/s41528-024-00315-1","url":null,"abstract":"This work introduces a silent speech interface (SSI), proposing a few-layer graphene (FLG) strain sensing mechanism based on thorough cracks and AI-based self-adaptation capabilities that overcome the limitations of state-of-the-art technologies by simultaneously achieving high accuracy, high computational efficiency, and fast decoding speed while maintaining excellent user comfort. We demonstrate its application in a biocompatible textile-integrated ultrasensitive strain sensor embedded into a smart choker, which conforms to the user’s throat. Thanks to the structure of ordered through cracks in the graphene-coated textile, the proposed strain gauge achieves a gauge factor of 317 with <5% strain, corresponding to a 420% improvement over existing textile strain sensors fabricated by printing and coating technologies reported to date. Its high sensitivity allows it to capture subtle throat movements, simplifying signal processing and enabling the use of a computationally efficient neural network. The resulting neural network, based on a one-dimensional convolutional model, reduces computational load by 90% while maintaining a remarkable 95.25% accuracy in speech decoding. The synergy in sensor design and neural network optimization offers a promising solution for practical, wearable SSI systems, paving the way for seamless, natural silent communication in diverse settings.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-11"},"PeriodicalIF":14.6,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00315-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140844985","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

Active electronic skin: an interface towards ambient haptic feedback on physical surfaces 有源电子皮肤：实现物理表面环境触觉反馈的界面

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-05-02 DOI: 10.1038/s41528-024-00311-5

Yuan Guo, Yun Wang, Qianqian Tong, Boxue Shan, Liwen He, Yuru Zhang, Dangxiao Wang

{"title":"Active electronic skin: an interface towards ambient haptic feedback on physical surfaces","authors":"Yuan Guo, Yun Wang, Qianqian Tong, Boxue Shan, Liwen He, Yuru Zhang, Dangxiao Wang","doi":"10.1038/s41528-024-00311-5","DOIUrl":"10.1038/s41528-024-00311-5","url":null,"abstract":"In the era of ubiquitous computing with flourished visual displays in our surroundings, the application of haptic feedback technology still remains in its infancy. Bridging the gap between haptic technology and the real world to enable ambient haptic feedback on various physical surfaces is a grand challenge in the field of human-computer interaction. This paper presents the concept of an active electronic skin, characterized by three features: richness (multi-modal haptic stimuli), interactivity (bi-directional sensing and actuation capabilities), and invisibility (transparent, ultra-thin, flexible, and stretchable). By deploying this skin on physical surfaces, dynamic and versatile multi-modal haptic display, as well as tactile sensing, can be achieved. The potential applications of this skin include two categories: skin for the physical world (such as intelligent home, intelligent car, and intelligent museum), and skin for the digital world (such as haptic screen, wearable device, and bare-hand device). Furthermore, existing skin-based haptic display technologies including texture, thermal, and vibrotactile feedback are surveyed, as well as multidimensional tactile sensing techniques. By analyzing the gaps between current technologies and the goal of ambient haptics, future research topics are proposed, encompassing fundamental theoretical research on the physiological and psychological perception mechanisms of human skin, spatial-temporal registration among multimodal haptic stimuli, integration between sensing and actuation, and spatial-temporal registration between visual and haptic display. This concept of active electronic skin is promising for advancing the field of ambient haptics, enabling seamless integration of touch into our digital and physical surroundings.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-27"},"PeriodicalIF":14.6,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00311-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140820741","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

Stroke-volume-allocation model enabling wearable sensors for vascular age and cardiovascular disease assessment 卒中量分配模型使可穿戴传感器用于血管年龄和心血管疾病评估

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-04-16 DOI: 10.1038/s41528-024-00307-1

Shirong Qiu, Bryan P. Y. Yan, Ni Zhao

{"title":"Stroke-volume-allocation model enabling wearable sensors for vascular age and cardiovascular disease assessment","authors":"Shirong Qiu, Bryan P. Y. Yan, Ni Zhao","doi":"10.1038/s41528-024-00307-1","DOIUrl":"10.1038/s41528-024-00307-1","url":null,"abstract":"Frequent and unobtrusive monitoring of cardiovascular conditions with consumer electronics is a widely pursued goal, since it provides the most economic and effective way of preventing and managing cardiovascular diseases (CVDs) ─ the leading causes of death worldwide. However, most current wearable and flexible devices can only support the measurement of one or two types of vital signs, such as heart rate and blood oxygen level, due to the lack of physiological models to link the measured signals to cardiovascular conditions. Here, we report a stroke-volume allocation (SVA) model to quantify the cushioning function of arteries and empower nearly all existing cardiac sensors with new functions, including arterial stiffness evaluation, dynamic blood pressure tracking and classification of CVD-related heart damage. Large-scale clinical data testing involving a hybrid dataset taken from 6 hospitals/research institutes (9 open databases and 4 self-built databases from 878 subjects in total) and diverse measurement approaches was carried out to validate the SVA model. The results show that the SVA-based parameters correlate well with the gold-standard measurements in arterial stiffness and blood pressure and outperform the commonly used vital sign (e.g., blood pressure) alone in detecting abnormalities in cardiovascular systems.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-10"},"PeriodicalIF":14.6,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00307-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140556422","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

Kirigami-inspired, three-dimensional piezoelectric pressure sensors assembled by compressive buckling 受桐木启发、通过压缩屈曲组装的三维压电压力传感器

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-04-11 DOI: 10.1038/s41528-024-00310-6

Yi Zhang, Changbo Liu, Ben Jia, Dongqin Ma, Xuecheng Tian, Yuanyuan Cui, Yuan Deng

{"title":"Kirigami-inspired, three-dimensional piezoelectric pressure sensors assembled by compressive buckling","authors":"Yi Zhang, Changbo Liu, Ben Jia, Dongqin Ma, Xuecheng Tian, Yuanyuan Cui, Yuan Deng","doi":"10.1038/s41528-024-00310-6","DOIUrl":"10.1038/s41528-024-00310-6","url":null,"abstract":"Piezoelectric sensors whose sensing performances can be flexibly regulated hold significant promise for efficient signal-acquisition applications in the healthcare field. The existing methods for regulating the properties of polyvinylidene fluoride (PVDF) films mainly include material modification and structural design. Compared to material modification, which has a long test period and an unstable preparation process, structural design is a more efficient method. The irigami structure combined with compressive buckling can endow the flexible film with rich macrostructural features. Here, a method is fabricated to modulate the sensing performance by employing distinct 3D structures and encapsulation materials with varying Young’s moduli. The relationship among the aspect ratio (α), pattern factor (η), elastic modulus of encapsulation materials, and equivalent stiffness is obtained by finite element simulation, which provides theoretical guidance for the design of the 2D precursor and the selection of encapsulation materials. In the demonstration applications, the sensor accurately captures pulse waveforms in multiple parts of the human body and is employed for the pressure monitoring of different parts of the sole under various posture states. This method of structure design is efficient, and the preparation process is convenient, providing a strategy for the performance control of piezoelectric pressure sensors.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-11"},"PeriodicalIF":14.6,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00310-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140546899","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

Wireless pressure monitoring system utilizing a 3D-printed Origami pressure sensor array 利用 3D 打印折纸压力传感器阵列的无线压力监测系统

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-04-03 DOI: 10.1038/s41528-024-00309-z

Hadi Moeinnia, Danielle Jaye Agron, Carl Ganzert, Loren Schubert, Woo Soo Kim

{"title":"Wireless pressure monitoring system utilizing a 3D-printed Origami pressure sensor array","authors":"Hadi Moeinnia, Danielle Jaye Agron, Carl Ganzert, Loren Schubert, Woo Soo Kim","doi":"10.1038/s41528-024-00309-z","DOIUrl":"10.1038/s41528-024-00309-z","url":null,"abstract":"We present here a 3D-printed pressure mapping mat, equipped with customizable architecture sensors, that offers a cost-effective and adaptable solution, overcoming the size constraints and sensing accuracy issues commonly associated with existing commercial pressure mats across various fields, such as healthcare and sports applications. Leveraging a pillar-origami structure, the demonstrated sensor offers multifaceted stiffness properties, effectively filtering skin deformations and enabling capacitive pressure sensing. Notably, the sensor’s detection range can be finely tuned, spanning from 70 to 2500 kPa, with a sensitivity range between 0.01 kPa-1 and 0.0002 kPa-1, and an impressive response time of just 800 milliseconds. Furthermore, the inclusion of a modular sensor array enhances maintenance and allows for greater flexibility in shaping and enhancing the device’s resolution. This technology finds practical applications in wireless foot pressure mapping and sports protection pads, marking a significant milestone in the advancement of flexible and custom-shaped pressure sensor technology.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-8"},"PeriodicalIF":14.6,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00309-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140343366","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

Water-based direct photopatterning of stretchable PEDOT:PSS using amphiphilic block copolymers 使用两亲性嵌段共聚物对可拉伸 PEDOT:PSS 进行水基直接光图案化

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-04-03 DOI: 10.1038/s41528-024-00308-0

Soon Joo Yoon, Jeongdae Ha, Hyeokjun Lee, Jin Tae Park, Bin Hyung Lee, Kyung-In Jang, Anna Yang, Yoon Kyeung Lee

{"title":"Water-based direct photopatterning of stretchable PEDOT:PSS using amphiphilic block copolymers","authors":"Soon Joo Yoon, Jeongdae Ha, Hyeokjun Lee, Jin Tae Park, Bin Hyung Lee, Kyung-In Jang, Anna Yang, Yoon Kyeung Lee","doi":"10.1038/s41528-024-00308-0","DOIUrl":"10.1038/s41528-024-00308-0","url":null,"abstract":"The use of water-based chemistry in photolithography during semiconductor fabrication is desirable due to its cost-effectiveness and minimal environmental impact, especially considering the large scale of semiconductor production. Despite these benefits, limited research has reported successful demonstrations of water-based photopatterning, particularly for intrinsically water-soluble materials such as Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) due to significant challenges in achieving selective dissolution during the developing process. In this paper, we propose a method for the direct patterning of PEDOT:PSS in water by introducing an amphiphilic Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO-PEO, P123) block copolymer to the PEDOT:PSS film. The addition of the block copolymer enhances the stretchability of the composite film and reduces the hydrophilicity of the film surface, allowing for water absorption only after UV exposure through a photoinitiated reaction with benzophenone. We apply this technique to fabricate tactile and wearable biosensors, both of which benefit from the mechanical stretchability and transparency of PEDOT:PSS. Our method represents a promising solution for water-based photopatterning of hydrophilic materials, with potential for wider applications in semiconductor fabrication.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-10"},"PeriodicalIF":14.6,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00308-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140345846","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

Completely annealing-free flexible Perovskite quantum dot solar cells employing UV-sintered Ga-doped SnO2 electron transport layers 采用紫外烧结掺杂 Ga 的 SnO2 电子传输层的完全无退火柔性 Perovskite 量子点太阳能电池

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-03-20 DOI: 10.1038/s41528-024-00305-3

Wooyeon Kim, Jigeon Kim, Dayoung Kim, Bonkee Koo, Subin Yu, Yuelong Li, Younghoon Kim, Min Jae Ko

{"title":"Completely annealing-free flexible Perovskite quantum dot solar cells employing UV-sintered Ga-doped SnO2 electron transport layers","authors":"Wooyeon Kim, Jigeon Kim, Dayoung Kim, Bonkee Koo, Subin Yu, Yuelong Li, Younghoon Kim, Min Jae Ko","doi":"10.1038/s41528-024-00305-3","DOIUrl":"10.1038/s41528-024-00305-3","url":null,"abstract":"The electron transport layer (ETL) is a critical component in perovskite quantum dot (PQD) solar cells, significantly impacting their photovoltaic performance and stability. Low-temperature ETL deposition methods are especially desirable for fabricating flexible solar cells on polymer substrates. Herein, we propose a room-temperature-processed tin oxide (SnO2) ETL preparation method for flexible PQD solar cells. The process involves synthesizing highly crystalline SnO2 nanocrystals stabilized with organic ligands, spin-coating their dispersion, followed by UV irradiation. The energy level of SnO2 is controlled by doping gallium ions to reduce the energy level mismatch with the PQD. The proposed ETL-based CsPbI3-PQD solar cell achieves a power conversion efficiency (PCE) of 12.70%, the highest PCE among reported flexible quantum dot solar cells, maintaining 94% of the initial PCE after 500 bending tests. Consequently, we demonstrate that a systemically designed ETL enhances the photovoltaic performance and mechanical stability of flexible optoelectronic devices.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-11"},"PeriodicalIF":14.6,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00305-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140164505","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

Flexible and wearable battery-free backscatter wireless communication system for colour imaging 用于彩色成像的灵活、可穿戴、无需电池的反向散射无线通信系统

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-03-14 DOI: 10.1038/s41528-024-00304-4

Jun-Lin Zhan, Wei-Bing Lu, Cong Ding, Zhen Sun, Bu-Yun Yu, Lu Ju, Xin-Hua Liang, Zhao-Min Chen, Hao Chen, Yong-Hao Jia, Zhen-Guo Liu, Tie-Jun Cui

{"title":"Flexible and wearable battery-free backscatter wireless communication system for colour imaging","authors":"Jun-Lin Zhan, Wei-Bing Lu, Cong Ding, Zhen Sun, Bu-Yun Yu, Lu Ju, Xin-Hua Liang, Zhao-Min Chen, Hao Chen, Yong-Hao Jia, Zhen-Guo Liu, Tie-Jun Cui","doi":"10.1038/s41528-024-00304-4","DOIUrl":"10.1038/s41528-024-00304-4","url":null,"abstract":"Wireless imaging, equipped with ultralow power wireless communications and energy harvesting (EH) capabilities, have emerged as battery-free and sustainable solutions. However, the challenge of implementing wireless colour imaging in wearable applications remains, primarily due to high power demands and the need to balance energy harvesting efficiency with device compactness. To address these issues, we propose a flexible and wearable battery-free backscatter wireless communication system specially designed for colour imaging. The system features a hybrid RF-solar EH array that efficiently harvests energy from both ambient RF and visible light energy, ensuring continuous operation in diverse environments. Moreover, flexible materials allow the working system to conform to the human body, ensuring comfort, user-friendliness, and safety. Furthermore, a compact design utilizing a shared-aperture antenna array for simultaneous wireless information and power transfer (SWIPT), coupled with an optically transparent stacked structure. This design not only optimizes space but also maintains the performance of both communication and EH processes. The proposed flexible and wearable systems for colour imaging would have potentially applications in environmental monitoring, object detection, and law enforcement recording. This approach demonstrates a sustainable and practical solution for the next generation of wearable, power-demanding devices.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-9"},"PeriodicalIF":14.6,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00304-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140135500","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

Deformable micro-supercapacitor fabricated via laser ablation patterning of Graphene/liquid metal 通过激光烧蚀石墨烯/液态金属图案制造可变形微型超级电容器

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-03-14 DOI: 10.1038/s41528-024-00306-2

Keon-Woo Kim, Seong Ju Park, Su-Jeong Park, Inae Kim, Bomi Park, Se Hyun Kim, Unyong Jeong, Jin Kon Kim, Chanwoo Yang

{"title":"Deformable micro-supercapacitor fabricated via laser ablation patterning of Graphene/liquid metal","authors":"Keon-Woo Kim, Seong Ju Park, Su-Jeong Park, Inae Kim, Bomi Park, Se Hyun Kim, Unyong Jeong, Jin Kon Kim, Chanwoo Yang","doi":"10.1038/s41528-024-00306-2","DOIUrl":"10.1038/s41528-024-00306-2","url":null,"abstract":"Deformable and miniaturized energy storage devices are essential for powering soft electronics. Herein, we fabricate deformable micro supercapacitors (MSCs) based on eutectic gallium-indium liquid metal (EGaIn) current collectors with integrated graphene. The well-define interdigitated electrode patterning with controlled gap is successfully realized by using the laser ablation because of a strong laser absorption of graphene and EGaIn. By judicious control of gap size between neighboring interdigitated electrodes and mass loading of graphene, we achieve a high areal capacitance (1336 µF cm−2) with reliable rate performance. In addition, owing to the intrinsic liquid characteristics of EGaIn current collector, the areal capacitance of fabricated MSC retains 90% of original value even after repetitive folding and 20% stretching up to 1000 cycles. Finally, we successfully integrate deformable MSC with a commercial light-emitting diode to demonstrate the feasibility of MSC as a deformable power source. The fabricated MSCs operate stably under various mechanical deformations, including stretching, folding, twisting, and wrinkling.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-9"},"PeriodicalIF":14.6,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00306-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140135499","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

Highly reliable and stretchable OLEDs based on facile patterning method: toward stretchable organic optoelectronic devices 基于简易图案化方法的高可靠性和可拉伸有机发光二极管：走向可拉伸有机光电器件

IF 14.6 1区材料科学

npj Flexible Electronics Pub Date : 2024-03-09 DOI: 10.1038/s41528-024-00303-5

Minwoo Nam, Jaehyeock Chang, Hagseon Kim, Young Hyun Son, Yongmin Jeon, Jeong Hyun Kwon, Kyung Cheol Choi

{"title":"Highly reliable and stretchable OLEDs based on facile patterning method: toward stretchable organic optoelectronic devices","authors":"Minwoo Nam, Jaehyeock Chang, Hagseon Kim, Young Hyun Son, Yongmin Jeon, Jeong Hyun Kwon, Kyung Cheol Choi","doi":"10.1038/s41528-024-00303-5","DOIUrl":"10.1038/s41528-024-00303-5","url":null,"abstract":"Stretchable displays attract significant attention because of their potential applications in wearable electronics, smart textiles, and human-conformable devices. This paper introduces an electrically stable, mechanically ultra-robust, and water-resistant stretchable OLED display (SOLED) mounted on a stress-relief pillar platform. The SOLED is fabricated on a thin, transparent polyethylene terephthalate (PET) film using conventional vacuum evaporation, organic-inorganic hybrid thin film encapsulation (TFE), and a nonselective laser patterning process. This simple and efficient process yields an OLED display with exceptional stretchability, reaching up to 95% strain and outstanding durability, enduring 100,000 stretch-release cycles at 50% strain. Operational lifetime and water-resistant storage lifetime measurements confirm that the TFE provides effective protection even after the nonselective laser patterning process. A 3 × 3 array SOLED display module mounted on a stress-relief pillar platform is successfully implemented, marking the first case of water-resistant display array operation in the field of SOLEDs. This work aims to develop practical stretchable displays by offering a reliable fabrication method and device design for creating mechanically robust and adaptable displays, potentially paving the way for future advances in human-conformable electronics and other innovative applications.","PeriodicalId":48528,"journal":{"name":"npj Flexible Electronics","volume":" ","pages":"1-14"},"PeriodicalIF":14.6,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41528-024-00303-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140096749","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