Kuangye Lu, Jaewoo Shim, Ki Seok Kim, Sang Won Kim, Jeehwan Kim
{"title":"2D materials can unlock single-crystal-based monolithic 3D integration","authors":"Kuangye Lu, Jaewoo Shim, Ki Seok Kim, Sang Won Kim, Jeehwan Kim","doi":"10.1038/s41928-024-01190-4","DOIUrl":"10.1038/s41928-024-01190-4","url":null,"abstract":"Two-dimensional (2D) semiconductors could be used to build advanced 3D chips based on monolithic 3D integration. But challenges related to growing single-crystalline materials at low temperatures — as well as enhancing the performance of 2D transistors — need to be addressed first.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pressure-stamped stretchable electronics using a nanofibre membrane containing semi-embedded liquid metal particles","authors":"Sijie Zheng, Xiaowei Wang, Weizheng Li, Ziyang Liu, Qingning Li, Feng Yan","doi":"10.1038/s41928-024-01194-0","DOIUrl":"10.1038/s41928-024-01194-0","url":null,"abstract":"Stretchable electronic devices are of use in the development of bioelectronics, wearable devices and healthcare monitoring. Liquid-metal-based stretchable devices are of particular interest for such systems but typically require complex manufacturing processes and suffer from poor interfacial adhesion between the liquid metal and polymeric substrates. Here we show that a membrane of electrospun polymer fibres containing semi-embedded liquid metal particles can be used to make stretchable electronics. The liquid metal particles within the fibre network rupture under pressure and fill the gaps in the fibre mesh to form conductive regions. This enables the creation of circuits with high resolution (minimum linewidths of 50 µm) and stability (over 30,000 cycles of 100% strain) using circuit-patterned stamps. The circuits can be integrated with various electronic components to achieve different functions, including square wave signal output, light emission and wireless charging. We used this approach to create sensors for bioelectrical signal monitoring, thus illustrating the biocompatibility and permeability of the membranes. We also show that the liquid-metal-containing fibre membranes can be separated into their individual components and recycled. A membrane of polymer fibres containing semi-embedded liquid metal particles can be selectively ruptured with a patterned stamp to produce stretchable circuits with high resolution and interfacial adhesion between the liquid metal and the polymer.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microsecond-response perovskite light-emitting diodes for active-matrix displays","authors":"Yun Gao, Hongjin Li, Xingliang Dai, Xingjian Ying, Zhe Liu, JiaJun Qin, Jie Guo, Zhongkang Han, Yujing Zhang, Meiyi Zhu, Xiaohui Wu, Qiuting Cai, Yixing Yang, Linrun Feng, Xiaoyu Zhang, Jingyun Huang, Haiping He, Feng Gao, Zhizhen Ye","doi":"10.1038/s41928-024-01181-5","DOIUrl":"10.1038/s41928-024-01181-5","url":null,"abstract":"Perovskite light-emitting diodes (PeLEDs) could be of use in the development of active-matrix displays. However, due to ion migration in crystal structure, PeLEDs have electroluminescence rise times over milliseconds, which is problematic for the development of high-refresh-rate displays. Here, we show that the electroluminescence rise time of PeLEDs can be reduced to microseconds using an individual-particle passivation strategy. The approach is based on BF4− ions that can passivate every nanocrystal in a perovskite emissive layer during film deposition. It leads to a defect-free film with discrete nanostructure and excellent crystallinity, which inhibits ion migration. Our strategy can be applied in perovskite nanocrystal films with different colours: red (635 nm), green (520 nm) and blue (475 nm). These PeLEDs all demonstrate response times within microseconds and high external quantum efficiencies of 22.7%, 26.2% and 18.1%, respectively. This allows us to create microsecond-response active-matrix PeLEDs that exhibit external quantum efficiencies above 20% at a display brightness of 500–3,000 cd m−2 for green devices with a resolution of 30 pixels per inch. We also develop microsecond-response red, green and blue active-matrix displays with 90 pixels per inch. An individual-particle passivation strategy that reduces ion migration in perovskite nanocrystal film can be used to make high-refresh-rate active-matrix displays with microsecond response times reduced by three orders of magnitude compared with typical perovskite light-emitting diodes.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41928-024-01181-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141334235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiao Wan, Trinny Tat, Yihao Zhou, Xun Zhao, Jun Chen
{"title":"Building bioelectronic fibres with a light touch","authors":"Xiao Wan, Trinny Tat, Yihao Zhou, Xun Zhao, Jun Chen","doi":"10.1038/s41928-024-01186-0","DOIUrl":"10.1038/s41928-024-01186-0","url":null,"abstract":"Conductive organic fibres can be tethered to biological surfaces without impeding biological features.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141333706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shaila Niazi, Shuvro Chowdhury, Navid Anjum Aadit, Masoud Mohseni, Yao Qin, Kerem Y. Camsari
{"title":"Training deep Boltzmann networks with sparse Ising machines","authors":"Shaila Niazi, Shuvro Chowdhury, Navid Anjum Aadit, Masoud Mohseni, Yao Qin, Kerem Y. Camsari","doi":"10.1038/s41928-024-01182-4","DOIUrl":"10.1038/s41928-024-01182-4","url":null,"abstract":"The increasing use of domain-specific computing hardware and architectures has led to an increasing demand for unconventional computing approaches. One such approach is the Ising machine, which is designed to solve combinatorial optimization problems. Here we show that a probabilistic-bit (p-bit)-based Ising machine can be used to train deep Boltzmann networks. Using hardware-aware network topologies on field-programmable gate arrays, we train the full Modified National Institute of Standards and Technology (MNIST) and Fashion MNIST datasets without downsampling, as well as a reduced version of the Canadian Institute for Advanced Research, 10 classes (CIFAR-10) dataset. For the MNIST dataset, our machine, which has 4,264 nodes (p-bits) and about 30,000 parameters, can achieve the same classification accuracy (90%) as an optimized software-based restricted Boltzmann machine with approximately 3.25 million parameters. Similar results are achieved for the Fashion MNIST and CIFAR-10 datasets. The sparse deep Boltzmann network can also generate new handwritten digits and fashion products, a task the software-based restricted Boltzmann machine fails at. Our hybrid computer performs a measured 50 to 64 billion probabilistic flips per second and can perform the contrastive divergence algorithm (CD-n) with up to n = 10 million sweeps per update, which is beyond the capabilities of existing software implementations. Probabilistic-bit-based Ising machines implemented on field-programmable gate arrays can be used to train artificial intelligence networks with the same performance as software-based approaches while using fewer model parameters.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141333574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An electronic pill for non-invasive gastric monitoring","authors":"Pengju Li, Jiuyun Shi, Bozhi Tian","doi":"10.1038/s41928-024-01180-6","DOIUrl":"10.1038/s41928-024-01180-6","url":null,"abstract":"A wireless electronic capsule — which is engineered for ingestion and has a sensing ribbon that conforms to the shape of the stomach — can provide non-invasive and long-term tracking of gastric electrophysiological signals.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141320021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stable and reliable bio-interfacing electrodes based on conductive hydrogels","authors":"Dekui Song, Nan Liu","doi":"10.1038/s41928-024-01179-z","DOIUrl":"10.1038/s41928-024-01179-z","url":null,"abstract":"A laser scanning method can be used to make conductive hydrogels that strongly and selectively adhere to polymer substrates, even in wet physiological environments.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141309193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eunhye Baek, Sen Song, Chang-Ki Baek, Zhao Rong, Luping Shi, Carlo Vittorio Cannistraci
{"title":"Neuromorphic dendritic network computation with silent synapses for visual motion perception","authors":"Eunhye Baek, Sen Song, Chang-Ki Baek, Zhao Rong, Luping Shi, Carlo Vittorio Cannistraci","doi":"10.1038/s41928-024-01171-7","DOIUrl":"10.1038/s41928-024-01171-7","url":null,"abstract":"Neuromorphic technologies typically employ a point neuron model, neglecting the spatiotemporal nature of neuronal computation. Dendritic morphology and synaptic organization are structurally tailored for spatiotemporal information processing, such as visual perception. Here we report a neuromorphic computational model that integrates synaptic organization with dendritic tree-like morphology. Based on the physics of multigate silicon nanowire transistors with ion-doped sol–gel films, our model—termed dendristor—performs dendritic computation at the device and neural-circuit level. The dendristor offers the bioplausible nonlinear integration of excitatory/inhibitory synaptic inputs and silent synapses with diverse spatial distribution dependency, emulating direction selectivity, which is the feature that reacts to signal direction on the dendrite. We also develop a neuromorphic dendritic neural circuit—a network of interconnected dendritic neurons—that serves as a building block for the design of a multilayer network system that emulates three-dimensional spatial motion perception in the retina. A neuromorphic computational model based on multigate silicon nanowire transistors can perform dendritic computation by integrating synaptic organization with dendritic tree-like morphology and can be used to develop a multilayer network system that emulates three-dimensional spatial motion perception in the retina.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":null,"pages":null},"PeriodicalIF":33.7,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}