Featured
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Giant energy storage and power density negative capacitance superlattices
- Suraj S. Cheema
- , Nirmaan Shanker
- & Sayeef Salahuddin
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Phase-change memory via a phase-changeable self-confined nano-filament
We present a device that can reduce the phase-change memory reset current while maintaining a high on/off ratio, fast speed and small variations, representing advances for neuromorphic computing systems.
- See-On Park
- , Seokman Hong
- & Shinhyun Choi
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A three-dimensional liquid diode for soft, integrated permeable electronics
Incorporation of a ‘liquid diode’ into a wearable electronic platform enhances comfort and stability by shunting away sweat as it accumulates.
- Binbin Zhang
- , Jiyu Li
- & Xinge Yu
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Double-side 2D/3D heterojunctions for inverted perovskite solar cells
A study presents a technique to sandwich 3D perovskite with 2D perovskites at the top and bottom, improving the performance and stability of perovskite solar cells.
- Randi Azmi
- , Drajad Satrio Utomo
- & Stefaan De Wolf
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Observation of plaid-like spin splitting in a noncoplanar antiferromagnet
Examining the in-plane spin components of the noncoplanar antiferromagnet manganese ditelluride provides spectroscopic and computational evidence of materials with a new type of plaid-like spin splitting in the antiferromagnetic ground state.
- Yu-Peng Zhu
- , Xiaobing Chen
- & Chang Liu
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| Open AccessHigh-quality semiconductor fibres via mechanical design
A mechanical design is developed for the fabrication of ultralong, fracture-free and perturbation-free semiconductor fibres to address the increasing demand for flexible and wearable optoelectronics.
- Zhixun Wang
- , Zhe Wang
- & Lei Wei
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Three-dimensional integration of two-dimensional field-effect transistors
Monolithic three-dimensional integration of two-dimensional field-effect transistors enables improved integration density and multifunctionality to realize ‘More Moore’ and ‘More than Moore’ technologies.
- Darsith Jayachandran
- , Rahul Pendurthi
- & Saptarshi Das
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Moiré synaptic transistor with room-temperature neuromorphic functionality
We report the experimental realization and room-temperature operation of a low-power (20 pW) moiré synaptic transistor based on an asymmetric bilayer graphene/hexagonal boron nitride moiré heterostructure.
- Xiaodong Yan
- , Zhiren Zheng
- & Mark C. Hersam
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Water-responsive supercontractile polymer films for bioelectronic interfaces
Water-responsive supercontractile polymer films composed of poly(ethylene oxide) and poly(ethylene glycol)-α-cyclodextrin inclusion complex contract by more than 50% of their original length within seconds after wetting and become soft and stretchable hydrogel thin films that can be used in bioelectronic interfaces.
- Junqi Yi
- , Guijin Zou
- & Xiaodong Chen
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Ultralow-resistance electrochemical capacitor for integrable line filtering
A miniaturized narrow-channel in-plane electrochemical capacitor shows drastically reduced ionic resistances within both the electrode material and the electrolyte and an ultrahigh areal capacitance by downscaling the channel width with femtosecond-laser scribing.
- Yajie Hu
- , Mingmao Wu
- & Liangti Qu
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Injectable tissue prosthesis for instantaneous closed-loop rehabilitation
An injectable hydrogel for use as a scaffold to aid tissue repair is described, the material of which is conductive so that it can be used both for electrophysiological measurement and electrostimulation in closed-loop robot-assisted rehabilitation.
- Subin Jin
- , Heewon Choi
- & Mikyung Shin
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| Open AccessA microfluidic transistor for automatic control of liquids
Flow limitation is exploited to develop a microfluidic device exhibiting flow–pressure behaviour analogous to the current–voltage characteristics of an electronic transistor.
- Kaustav A. Gopinathan
- , Avanish Mishra
- & Mehmet Toner
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Doping of molecular semiconductors through proton-coupled electron transfer
Proton-coupled electron-transfer reactions are used to achieve efficient chemical doping of organic semiconductor thin films under ambient conditions, and a reference-electrode-free, resistive pH sensor based on the method is proposed.
- Masaki Ishii
- , Yu Yamashita
- & Jun Takeya
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Homomeric chains of intermolecular bonds scaffold octahedral germanium perovskites
We report assembly of an organic scaffold within perovskite structures, resulting in the suppression of the lone pair expression of Ge and templating the symmetric octahedra.
- Amin Morteza Najarian
- , Filip Dinic
- & Edward H. Sargent
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Fluidic self-assembly for MicroLED displays by controlled viscosity
A MicroLED lighting panel, assembled in 60 s by a surface-tension-driven fluidic self-assembly technique, gave a yield as high as 99.90% through the addition of a small amount of poloxamer to the assembly solution.
- Daewon Lee
- , Seongkyu Cho
- & Sunghoon Kwon
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Helical polymers for dissymmetric circularly polarized light imaging
We report a simple method to fabricate chiroptical flexible layers via supramolecular helical ordering of conjugated polymer chains, providing direct, scalable realization of on-chip detection of the spin degree of freedom of photons.
- Inho Song
- , Jaeyong Ahn
- & Joon Hak Oh
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Self-powered perovskite photon-counting detectors
Suppression of shallow traps responsible for dark count rates in polycrystalline methylammonium lead triiodide using diphenyl sulfide enables the production of metal-halide perovskite photon-counting detectors that allow sensitive detection of γ-ray spectra.
- Ying Zhou
- , Chengbin Fei
- & Jinsong Huang
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Thousands of conductance levels in memristors integrated on CMOS
Chips with 256 × 256 memristor arrays that were monolithically integrated on complementary metal–oxide–semiconductor (CMOS) circuits in a commercial foundry achieved 2,048 conductance levels in individual memristors.
- Mingyi Rao
- , Hao Tang
- & J. Joshua Yang
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Suppressed phase segregation for triple-junction perovskite solar cells
All-perovskite triple-junction solar cell devices have been fabricated, with a certified efficiency of 23.3%; these devices retain 80% of their initial efficiency following 420 hours of operation.
- Zaiwei Wang
- , Lewei Zeng
- & Edward H. Sargent
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Bright and stable perovskite light-emitting diodes in the near-infrared range
Perovskite LEDs with exceptional performance at high brightness are demonstrated achieving an operational half-lifetime of 32 hours, an important step towards commercialization opening up new opportunities beyond conventional LED technologies, such as perovskite electrically pumped lasers.
- Yuqi Sun
- , Lishuang Ge
- & Neil C. Greenham
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| Open AccessHuman–machine collaboration for improving semiconductor process development
A virtual process game to benchmark the performance of humans and computers for the fabrication of semiconductors leads to a strategy combining human expert design with optimization algorithms to improve semiconductor process development.
- Keren J. Kanarik
- , Wojciech T. Osowiecki
- & Richard A. Gottscho
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Ladderphane copolymers for high-temperature capacitive energy storage
A class of dielectric copolymers called ladderphanes is shown to outperform existing dielectric polymers and composites, with high discharged energy density and charge–discharge efficiency even at temperatures up to 200 °C.
- Jie Chen
- , Yao Zhou
- & Qing Wang
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A universal interface for plug-and-play assembly of stretchable devices
A universal interface connects soft, rigid and encapsulation modules together to form robust, stretchable devices in a plug-and-play manner by pressing without using pastes, which will simplify and accelerate development of on-skin and implantable devices.
- Ying Jiang
- , Shaobo Ji
- & Xiaodong Chen
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Autonomous self-burying seed carriers for aerial seeding
A study describes a wood-based, three-tailed, biodegradable seed carrier that self-drills into the ground in response to moisture fluctuations with a success rate higher than that of natural self-drilling seeds.
- Danli Luo
- , Aditi Maheshwari
- & Lining Yao
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Vertical full-colour micro-LEDs via 2D materials-based layer transfer
We report full-colour, vertically stacked µLEDs that achieve exceptionally high array density (5,100 pixels per inch) and small size (4 µm) via a 2D material-based layer transfer technique, allowing the creation of full-colour µLED displays for augmented and virtual reality.
- Jiho Shin
- , Hyunseok Kim
- & Jeehwan Kim
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| Open AccessA wearable cardiac ultrasound imager
Innovations in device design, material fabrication and deep learning are described, leading to a wearable ultrasound transducer capable of dynamic cardiac imaging in various environments and under different conditions.
- Hongjie Hu
- , Hao Huang
- & Sheng Xu
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| Open AccessOctupole-driven magnetoresistance in an antiferromagnetic tunnel junction
The authors report observation of tunnelling magnetoresistance in an all-antiferromagnetic tunnel junction consisting of Mn3Sn/MgO/Mn3Sn, laying the foundation for the development of ultrafast and efficient spintronic devices using antiferromagnets.
- Xianzhe Chen
- , Tomoya Higo
- & Satoru Nakatsuji
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In-plane charged domain walls with memristive behaviour in a ferroelectric film
The direct observation of in-plane charged domain walls in BiFeO3 ferroelectric films a few nanometres thick, their deterministic creation, manipulation and annihilation by applied voltage, as well the demonstration of their memristive functionality is reported.
- Zhongran Liu
- , Han Wang
- & He Tian
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Room-temperature magnetoresistance in an all-antiferromagnetic tunnel junction
A new exchange-bias effect between two different antiferromagnetic layers enables the fabrication of all-antiferromagnetic structures that have a large room-temperature tunnelling magnetoresistance and potential applications for ultrafast memory technologies.
- Peixin Qin
- , Han Yan
- & Zhiqi Liu
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| Open AccessVertical organic electrochemical transistors for complementary circuits
Vertical organic electrochemical transistors demonstrating unprecedented performances in both p- and n-type operation modes have been synthesized from new electro-active and ion-permeable semiconducting polymers by the interface engineering of electro-active blend layers.
- Wei Huang
- , Jianhua Chen
- & Antonio Facchetti
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Non-epitaxial single-crystal 2D material growth by geometric confinement
Geometric confinement on arbitrary substrates promotes, without epitaxial seeding, the layer-by-layer growth of two-dimensional single-crystal monolayers and bilayers of transition metal dichalcogenides.
- Ki Seok Kim
- , Doyoon Lee
- & Jeehwan Kim
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Synthesis-on-substrate of quantum dot solids
Ultrasmall monodisperse perovskite quantum dots are synthesized in situ on a substrate via ligand structure regulation, yielding the highest external quantum efficiency blue perovskite LEDs reported so far.
- Yuanzhi Jiang
- , Changjiu Sun
- & Mingjian Yuan
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Ultra-bright, efficient and stable perovskite light-emitting diodes
The authors develop a method for the production of ultra-bright, efficient and stable perovskite light-emitting diodes, achieved with a simple in situ reaction process.
- Joo Sung Kim
- , Jung-Min Heo
- & Tae-Woo Lee
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3D-printed machines that manipulate microscopic objects using capillary forces
By harnessing capillary forces, 3D-printed machines with cross-sections that vary by height can move floating objects programmatically in two dimensions and even braid filaments without physical contact.
- Cheng Zeng
- , Maya Winters Faaborg
- & Vinothan N. Manoharan
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Control of chiral orbital currents in a colossal magnetoresistance material
Current-control of chiral orbital current-enabled colossal magnetoresistance offers a new paradigm for quantum technologies.
- Yu Zhang
- , Yifei Ni
- & Gang Cao
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Low-hysteresis shape-memory ceramics designed by multimode modelling
Combining computational thermodynamics and data science tools with lattice engineering enables the design of shape-memory ceramics with reduced hysteresis.
- Edward L. Pang
- , Gregory B. Olson
- & Christopher A. Schuh
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A dynamically reprogrammable surface with self-evolving shape morphing
The work presents a reprogrammable metasurface, constructed from a matrix of filamentary metal traces, that can precisely and rapidly morph into a wide range of target shapes and dynamic shape processes.
- Yun Bai
- , Heling Wang
- & Xiaoyue Ni
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| Open AccessLarge harvested energy with non-linear pyroelectric modules
A macroscopic and scalable pyroelectric energy harvester in the form of multilayer capacitors produces 11.2 J of electrical energy, with a pyroelectric material generating up to 4.43 J cm−3 per cycle.
- Pierre Lheritier
- , Alvar Torelló
- & Emmanuel Defay
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A solution-processed n-type conducting polymer with ultrahigh conductivity
A reaction is described combining oxidative polymerization and in situ reductive n-doping to yield poly(benzodifurandione), a facilely synthesized stable n-type conducting polymer with ultrahigh conductivity, with applications in organic electronics.
- Haoran Tang
- , Yuanying Liang
- & Fei Huang
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Pulsed hydraulic-pressure-responsive self-cleaning membrane
The PiezoMem membrane responsive to hydraulic pressure is introduced, showing the ability to convert pressure pulses into electroactive responses for in situ self-cleaning and enabling broad-spectrum antifouling action towards a range of membrane foulants.
- Yang Zhao
- , Yuna Gu
- & Guandao Gao
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Highly efficient blue InGaN nanoscale light-emitting diodes
Using a sol–gel passivation method, the fabrication of blue InGaN nanorod-LEDs with the highest external quantum efficiency value ever reported for LEDs in the nanoscale is demonstrated.
- Mihyang Sheen
- , Yunhyuk Ko
- & Changhee Lee
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P-type electrical contacts for 2D transition-metal dichalcogenides
Clean van der Waals contacts of high-work-function metals have been demonstrated on few- and single-layered MoS2 and WSe2, leading to p-type characteristics on single-layer MoS2 and purely p-type characteristics on WSe2.
- Yan Wang
- , Jong Chan Kim
- & Manish Chhowalla
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Perpendicular full switching of chiral antiferromagnetic order by current
Full, perpendicular and bidirectional spin–orbit torque switching of chiral antiferromagnetic order using an electrical current is experimentally demonstrated with epitaxial heterostructures.
- Tomoya Higo
- , Kouta Kondou
- & Satoru Nakatsuji
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Direct observation of vortices in an electron fluid
Vortices in an electron fluid are directly observed in a para-hydrodynamic regime in which the spatial diffusion of electron momenta is enabled by small-angle scattering rather than electron–electron scattering.
- A. Aharon-Steinberg
- , T. Völkl
- & E. Zeldov
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Chiral molecular intercalation superlattices
By intercalating layered 2D atomic crystals with selected chiral molecules, a new class of chiral molecular intercalation superlattices is reported, demonstrating highly ordered structures and achieving high tunnelling magnetoresistance and spin polarization ratios.
- Qi Qian
- , Huaying Ren
- & Xiangfeng Duan
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| Open AccessOrganic bipolar transistors
An organic bipolar junction transistor composed of highly crystalline rubrene thin films has a device architecture that could be used in organic electronics with greatly improved high-frequency performance
- Shu-Jen Wang
- , Michael Sawatzki
- & Karl Leo
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High-κ perovskite membranes as insulators for two-dimensional transistors
Single-crystalline perovskite membranes with an ultrahigh dielectric constant show potential as a gate dielectric for two-dimensional field-effect transistors.
- Jing-Kai Huang
- , Yi Wan
- & Sean Li
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Uniform nucleation and epitaxy of bilayer molybdenum disulfide on sapphire
The epitaxial growth of bilayer molybdenum disulfide on sapphire enables the fabrication of field-effect transistor devices with improved performance in carrier mobility and on-state current over traditional monolayer films.
- Lei Liu
- , Taotao Li
- & Xinran Wang
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Intelligent infrared sensing enabled by tunable moiré quantum geometry
Tunable quantum geometric properties of moiré graphene enable the use of a convolutional neural network to simultaneously decipher the light polarization, power and wavelength in a subwavelength-scale smart device.
- Chao Ma
- , Shaofan Yuan
- & Fengnian Xia