Article
|
Open Access
Featured
-
-
Article
| Open AccessReliable wafer-scale integration of two-dimensional materials and metal electrodes with van der Waals contacts
2D semiconductors may offer a platform for future electronics, but the wafer-scale fabrication of high-performance 2D transistors remains challenging. Here, the authors report a universal all-stacking method to fabricate wafer-scale 2D electronic devices with van der Waals contacts, based on epitaxial metallic electrodes grown on fluorophlogopite mica.
- Xiaodong Zhang
- , Chenxi Huang
- & Hualing Zeng
-
Article
| Open AccessProgrammed multimaterial assembly by synergized 3D printing and freeform laser induction
A freeform multimaterial assembly process (FMAP) is demonstrated, synchronizing laser induction with 3D printing for seamlessly integrating multimaterials into 3D objects, enabling streamlined, flexible, and precise electronic device fabrication.
- Bujingda Zheng
- , Yunchao Xie
- & Jian Lin
-
Article
| Open AccessUnderstanding how junction resistances impact the conduction mechanism in nano-networks
The electrical properties of nanostructured networks are often dominated by junctions between the particles. Here, Gabett et al. develop transport models and utilise impedance spectroscopy to quantify the factors limiting conduction in these systems.
- Cian Gabbett
- , Adam G. Kelly
- & Jonathan N. Coleman
-
Article
| Open AccessIntelligent wearable olfactory interface for latency-free mixed reality and fast olfactory enhancement
Liu et al. developed AI-driven, wearable olfactory interfaces with odor generators for realizing latency-free mixed-reality and fast olfaction recovery. This technology enables personalized olfactory feedback and enhanced virtual environments for various applications including education, and clinical treatment.
- Yiming Liu
- , Shengxin Jia
- & Xinge Yu
-
Article
| Open AccessElectrostatically controlled spin polarization in Graphene-CrSBr magnetic proximity heterostructures
The electrostatic control of magnetic properties is central for future development of spintronic devices. Here, the authors show that the magnetic proximity effect induces an exchange shift in the band structure of graphene interfaced with CrSBr.
- Boxuan Yang
- , Bibek Bhujel
- & Bart J. van Wees
-
Article
| Open AccessTunnel junctions based on interfacial two dimensional ferroelectrics
The authors study tunneling junctions in rhombohedral MoS2 bilayers and correlate their performance with the local domain layout. They show that the switching behavior in sliding ferroelectrics is strongly dependent on the pre-existing domain structure.
- Yunze Gao
- , Astrid Weston
- & Roman Gorbachev
-
Article
| Open AccessTransparent radiative cooling cover window for flexible and foldable electronic displays
In this work, authors synthesize transparent radiative cooling cover windows for flexible and foldable electronic devices. Besides demonstrated enhanced mechanical and moisture-impermeable properties, these mitigate temperature rise of devices under solar irradiation and improve overall thermal management.
- Kang Won Lee
- , Jonghun Yi
- & Dong Rip Kim
-
Article
| Open AccessStable pure-green organic light-emitting diodes toward Rec.2020 standard
It is essential to manipulate the dynamic behaviour of charge carriers and excitons in organic light-emitting diodes. Here, authors report the trapping of injected electrons by a thermally activated delayed fluorescence assistant molecule in a bipolar host matrix and achieve long device stability.
- Xun Tang
- , Tuul Tsagaantsooj
- & Chihaya Adachi
-
Article
| Open AccessLightweight and drift-free magnetically actuated millirobots via asymmetric laser-induced graphene
Millirobots effective application generally depends on cost, scalability, efficient locomotion, and the ability to track target trajectory precisely. Here, authors demonstrate promising graphene-based helical millirobots by introducing asymmetric light pattern distortion to a laser-induced graphene process.
- Yun Chen
- , Yuanhui Guo
- & Ni Zhao
-
Article
| Open AccessThe role of microstructure in the thermal fatigue of solder joints
Thermal fatigue frequently leads to failure in electronic solder joints. Here, the authors measure and quantitatively explain how microstructure affects thermal fatigue in a ball grid array package and propose optimum microstructures for thermal fatigue resistance.
- J. W. Xian
- , Y. L. Xu
- & C. M. Gourlay
-
Article
| Open AccessA large-strain and ultrahigh energy density dielectric elastomer for fast moving soft robot
Dielectric elastomer actuators require high driving electric fields to achieve high performances for soft robots due to their low dielectric constant and high stiffness. Here, the authors introduce polar fluorinated groups and nanodomains aggregated by long alkyl side chains into the dielectric elastomer design to overcome these issues and develop fast soft robots.
- Wenwen Feng
- , Lin Sun
- & Chao Wang
-
Article
| Open AccessAdvancing interactive systems with liquid crystal network-based adaptive electronics
There is significant interest in developing electronic units that can perform sensing, signal processing, and actuation functions independently, similar to biological systems. Lyu et al. develop electronic units based on liquid crystal oligomer networks that exhibit adaptive behavior in response to environmental stimuli such as light and heat.
- Pengrong Lyu
- , Dirk J. Broer
- & Danqing Liu
-
Article
| Open AccessSustainable thermal regulation improves stability and efficiency in all-perovskite tandem solar cells
Mixed Sn-Pb perovskites have emerged as promising photovoltaic materials for both single- and multi-junction solar cells. Here, authors reveal the thermal degradation mechanism and incorporate carboranes for thermal regulation, resulting in stable all-perovskite tandems with efficiency of over 27%.
- Shuchen Tan
- , Chongwen Li
- & Zhongmin Zhou
-
Article
| Open AccessHigh-performance piezoelectric energy harvesting in amorphous perovskite thin films deposited directly on a plastic substrate
Traditional methods to incorporate polycrystalline thin film into flexible systems are often complicated and limited by their sizes. Here, the authors introduce flexible amorphous thin film energy harvester, based on perovskite oxides, on a plastic substrate for electromechanical energy harvesting.
- Ju Han
- , Sung Hyun Park
- & Yong Soo Cho
-
Article
| Open AccessCrown ether decorated silicon photonics for safeguarding against lead poisoning
Lead toxification in society is a public health crisis. The exposure to lead poisoning gives rise to a multitude of health issues. In this work, a chip-scale photonic platform that enables the highly quantitative detection of lead is demonstrated.
- Luigi Ranno
- , Yong Zen Tan
- & Jia Xu Brian Sia
-
Article
| Open AccessThree-dimensional liquid metal-based neuro-interfaces for human hippocampal organoids
Providing a suitable multi-electrode array (MEA) for free-floating neural organoids is a great challenge. Here, authors present a mesh soft stretchable MEA for recording neural signals in human hippocampal organoids derived from induced pluripotent stem cells.
- Yan Wu
- , Jinhao Cheng
- & Xingyu Jiang
-
Article
| Open AccessFirefly-inspired bipolar information indication system actuated by white light
Inspired by fireflies, a bimodal information indication system using a photochemical afterglow material within a photonic crystal matrix is developed to display both static and changing information, such as sample type and degree of degradation.
- Hanwen Huang
- , Jiamiao Yin
- & Changchun Wang
-
Article
| Open AccessDiamond with Sp2-Sp3 composite phase for thermometry at Millikelvin temperatures
To measure temperatures close to absolute zero, authors developed a kind of composite phase diamond (CPD) that can measure temperature at the millikelvin level, making it a promising candidate for next–generation cryogenic temperature sensors.
- Jianan Yin
- , Yang Yan
- & Jian Lu
-
Article
| Open AccessGeneral strategy for developing thick-film micro-thermoelectric coolers from material fabrication to device integration
The micro-thermoelectric coolers face challenges in high-performance material preparation and high-density device integration. Here, the authors combine Bi2Te3-based film prepared by powder direct molding with micro-thermoelectric cooler integrated via phase-change batch transfer.
- Xiaowen Sun
- , Yuedong Yan
- & Yuan Deng
-
Article
| Open AccessA filtering reconfigurable intelligent surface for interference-free wireless communications
A filtering reconfigurable intelligent surface is presented with sharp frequency-selecting and 2-bit phase-shifting properties, offering to advance the development of wireless communications with anti-interference and signal-manipulation abilities.
- Jing Cheng Liang
- , Lei Zhang
- & Tie Jun Cui
-
Article
| Open AccessHigh-density, highly sensitive sensor array of spiky carbon nanospheres for strain field mapping
Accurate mapping of strain distribution calls for strain sensor arrays with high sensitivity, high sensing density and inter-unit consistency. Here, the authors report an array made from ordered assembly of monodispersed spiky carbon nanospheres to achieve the above features simultaneously.
- Shuxing Mei
- , Haokun Yi
- & Limin Wu
-
Article
| Open AccessGiant dielectric tunability in ferroelectric ceramics with ultralow loss by ion substitution design
The authors realize composite optimization in dielectric tunable materials by simultaneously achieving low electric field, large tunability, and low loss through ion substitution design in ferroelectric tunable materials.
- Ruitao Li
- , Diming Xu
- & Di Zhou
-
Article
| Open AccessMagnetic steering continuum robot for transluminal procedures with programmable shape and functionalities
Interaction with surrounding lumina leads to potential medical risks in transluminal procedures. Here, the authors report a magnetic steering continuum robot that achieve autonomous shaping without the need for environmental interaction.
- Liyang Mao
- , Peng Yang
- & Hui Xie
-
Article
| Open AccessTunneling current-controlled spin states in few-layer van der Waals magnets
Magnetic tunnel junctions consist of two magnetic layers, separated by a thin insulator. The simplicity belies the industrial importance: magnetic tunnel junctions have a very wide variety of applications in contemporary society. Here, Fu et al present a magnetic tunnel junction composed of single van der Waals magnetic insulator, CrI3, exhibiting remarkably low power consumption.
- ZhuangEn Fu
- , Piumi I. Samarawickrama
- & Jifa Tian
-
Article
| Open AccessHighly efficient in crystallo energy transduction of light to work
Crystals are known to have a range of responses to light, but multiple responses in the same material are rare. Here, the authors report different mechanical effects in response to light across three polymorphs as a result of a dimerization reaction.
- Jiawei Lin
- , Jianmin Zhou
- & Junbo Gong
-
Article
| Open AccessMemory-electroluminescence for multiple action-potentials combination in bio-inspired afferent nerves
In this work, a nanoscale light-emitting diode with memory-electroluminescence is demonstrated, which is used for mimicking the generation of multiple action-potentials and their combinations in bio-inspired afferent nerves.
- Kun Wang
- , Yitao Liao
- & Tae Whan Kim
-
Article
| Open AccessMulti-level, forming and filament free, bulk switching trilayer RRAM for neuromorphic computing at the edge
Filamentary RRAM technologies suffer from variations and noise, leading to computational accuracy loss, and increased energy consumption. Park et al. created a trilayer metal-oxide bulk switching RRAM technology without filament formation and showed edge computing for an autonomous navigation task.
- Jaeseoung Park
- , Ashwani Kumar
- & Duygu Kuzum
-
Article
| Open AccessMultiple hydrogen-bonding induced nonconventional red fluorescence emission in hydrogels
The development of fluorescent polymer hydrogels without the use of extended pi-conjugation is challenging. Here, the authors report the use of clustering-trigger emission to give red fluorescence on boiling polymer hydrogels, with tuneable emission properties.
- Jiayu Wu
- , Yuhuan Wang
- & Feng Zhou
-
Article
| Open AccessEstablishing superfine nanofibrils for robust polyelectrolyte artificial spider silk and powerful artificial muscles
Spider silk has desirable properties, but these are hard to replicate with artificial materials. Here, the authors report a polyelectrolyte artificial spider silk, with control over dissociation of the polymer chains by introduction of ions, and thermally driven supercontraction.
- Wenqian He
- , Meilin Wang
- & Zunfeng Liu
-
Article
| Open AccessFunctionalized MXene ink enables environmentally stable printed electronics
Here, authors demonstrate the electrohydrodynamic printing of alkylated 3,4-dihydroxy-L-phenylalanine functionalized MXene (AD-MXene) ink. The AD-MXene outperforms vacuum-deposited Au and Al electrodes, providing thin film transistors with good environmental stability due to its hydrophobicity.
- Tae Yun Ko
- , Heqing Ye
- & Insik In
-
Article
| Open AccessVisualized in-sensor computing
The communication of colour information stands as one of the most immediate and widespread methods of interaction among biological entities. Xu et al. report an electrochromic neuromorphic transistor employing color updates to represent synaptic weight for real-time visualised in-sensor computing.
- Yao Ni
- , Jiaqi Liu
- & Wentao Xu
-
Article
| Open AccessTransparent integrated pyroelectric-photovoltaic structure for photo-thermo hybrid power generation
The full potential of photoelectric devices can possibly be maximized through pyroelectricity for power generation beyond thermodynamic limit. Here, authors report photovoltaic heterostructure device with pyroelectric absorber, achieving 2.5 times more output power due to long-range electric field.
- Malkeshkumar Patel
- , Hyeong-Ho Park
- & Joondong Kim
-
Article
| Open AccessAutonomous self-healing supramolecular polymer transistors for skin electronics
Integrating self-healing capabilities into skin-like stretchable transistors presents a persistent challenge. Here, by using a supramolecular polymer matrix, the authors develop autonomous self-healing transistors and skin-like logic circuits.
- Ngoc Thanh Phuong Vo
- , Tae Uk Nam
- & Jin Young Oh
-
Article
| Open AccessIntelligent perceptual textiles based on ionic-conductive and strong silk fibers
Perception plays a pivotal role in advancing future intelligent textiles. Here, the authors develop smart perceptual textiles using natural-derived ionic-conductive silk fibers. These textiles can electrically detect external hazards and precisely pinpointing human touch, making them suitable for smart protective clothing and soft human-machine interfaces.
- Haojie Lu
- , Yong Zhang
- & Yingying Zhang
-
Article
| Open AccessReconfigurable optoelectronic transistors for multimodal recognition
Reconfigurable neuromorphic transistors are important for creating compact and efficient neuromorphic computing networks. Here, Li et al. introduce an optoelectronic electrolyte-gated transistor to perform multimodal recognition.
- Pengzhan Li
- , Mingzhen Zhang
- & Chen Ge
-
Article
| Open AccessOn the role of asymmetric molecular geometry in high-performance organic solar cells
The correlation between asymmetric molecular geometry of non-fullerene acceptors and their optoelectronic properties was unclear. Here, the authors found asymmetric ones exhibit increased open-circuit voltage compared to their symmetric counterparts due to reduced non-radiative charge recombination.
- Jinfeng Huang
- , Tianyi Chen
- & Lijian Zuo
-
Article
| Open AccessTunable stochastic memristors for energy-efficient encryption and computing
Integrating security, computing and memory capabilities in ion-migration-driven memristors is challenging. Here, Woo et al. experimentally demonstrates a single system that performs cryptographic key generation, universal Boolean logic operations, and encryption/decryption.
- Kyung Seok Woo
- , Janguk Han
- & Cheol Seong Hwang
-
Article
| Open AccessDynamic multicolor emissions of multimodal phosphors by Mn2+ trace doping in self-activated CaGa4O7
Achieving dynamic multimodal luminescence in a single material is promising but challenging. Here, the authors engineer a phosphor with dynamic multicolor luminescence and photo-thermomechanically responsive emissions by adding Mn2+ to a self-activated CaGa4O7 host.
- Yiqian Tang
- , Yiyu Cai
- & Jun-Cheng Zhang
-
Article
| Open AccessBright, efficient, and stable pure-green hyperfluorescent organic light-emitting diodes by judicious molecular design
The device performance of pure-green hyperfluorescent organic light-emitting diodes remains unsatisfactory. Here, the authors report multi-resonance emitters with extended π−conjugation or increased donor strength, resulting in bright, efficient and stable pure-green hyperfluorescent devices.
- Yi-Ting Lee
- , Chin-Yiu Chan
- & Chihaya Adachi
-
Article
| Open AccessStrain-insensitive viscoelastic perovskite film for intrinsically stretchable neuromorphic vision-adaptive transistors
Wearable neuromorphic optoelectronics require stretchable photosensitive materials and multifunctional integration. Here, authors develop intrinsically stretchable neuromorphic vision-adaptive transistors for skin-like neuromorphic vision systems.
- Chengyu Wang
- , Yangshuang Bian
- & Yunlong Guo
-
Article
| Open AccessUltrafast piezocapacitive soft pressure sensors with over 10 kHz bandwidth via bonded microstructured interfaces
Piezocapacitive pressure sensors are typically limited by the slow response-relaxation speed for detecting dynamic stimuli. Here, Zhang et al. utilize the electrode-dielectric interface and bonded micro-structured interface for energy dissipation and reduce the response and relaxation time to 0.04 ms.
- Yuan Zhang
- , Xiaomeng Zhou
- & Chuan Fei Guo
-
Article
| Open AccessEssential role of lattice oxygen in hydrogen sensing reaction
Understanding the sensing mechanism of metal oxide semiconductors is imperative for developing high-performance sensors. Here, the participation of lattice oxygen, caused by additional Ge, boosts the hydrogen sensing ability of SnO2.
- Jiayu Li
- , Wenzhe Si
- & Guo-Dong Li
-
Article
| Open AccessModified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes
It has been challenging to realize efficient and stable blue phosphorescent organic light-emitting diodes. Here, authors explore the effect of substitution position in platinum(II) dopants with suppressed metal-metal-to-ligand charge transfer features, resulting in prolonged lifetime in the devices.
- Young Hun Jung
- , Gyeong Seok Lee
- & Jang Hyuk Kwon
-
Article
| Open AccessLow thermal contact resistance boron nitride nanosheets composites enabled by interfacial arc-like phonon bridge
Boron nitride nanosheets possess high in-plane thermal conductivity and high thermal contact resistance. Here the authors discover obliquely aligned nanosheets at the interface can act as a phonon bridge to lower the contact resistance.
- Ke Zhan
- , Yucong Chen
- & Ling Qiu
-
Article
| Open AccessFlash healing of laser-induced graphene
Laser-induced graphene (LIG) can be obtained via a practically convenient approach, but its amorphous characteristics limit its applications. Here, the authors report a flash Joule heating strategy to improve the crystalline quality and conductivity of LIG, leading to strain sensors with enhanced sensitivity.
- Le Cheng
- , Chi Shun Yeung
- & Ruquan Ye
-
Article
| Open AccessA modular organic neuromorphic spiking circuit for retina-inspired sensory coding and neurotransmitter-mediated neural pathways
The distinctive interdependence in mixed ionic-electronic conductors emulates retinal pathway. Here, the authors develop a modular organic neuromorphic spiking circuit to replicate the interdependent functions of receptors, neurons and synapses that are chemically modulated by neurotransmitters.
- Giovanni Maria Matrone
- , Eveline R. W. van Doremaele
- & Yoeri van de Burgt
-
Article
| Open AccessHighly efficient multi-resonance thermally activated delayed fluorescence material toward a BT.2020 deep-blue emitter
The realization of a BT.2020 blue emitter is challenging due to the spectral redshift associated with π-extension. Here, the authors report a multi-resonance thermally activated delayed fluorescence emitter, exhibiting ultrapure deep-blue narrow emission and CIEy ≤ 0.05 exceeding 20% efficiency.
- Junki Ochi
- , Yuki Yamasaki
- & Takuji Hatakeyama
-
Article
| Open AccessFull integration of highly stretchable inorganic transistors and circuits within molecular-tailored elastic substrates on a large scale
Developing integrated stretchable metal-oxide transistors and circuits is challenging. Here, Kang et al. leveraged molecular-tailored elastic substrates for enhanced adhesion, thus achieving high performance and logical operation across various circuits under high strain.
- Seung-Han Kang
- , Jeong-Wan Jo
- & Sung Kyu Park
-
Article
| Open AccessFlexible large-area ultrasound arrays for medical applications made using embossed polymer structures
Current ultrasound transducers are bulky and rigid. Here, the authors describe a new way to realize large-area and mechanically flexible ultrasound arrays on polymer foils suited for wearable ultrasound applications
- Paul L. M. J. van Neer
- , Laurens C. J. M. Peters
- & Gerwin H. Gelinck