Nanotechnology transforms molecular beams into functional nano-devices with controlled atomic architectures
Bottom-up synthesis of nanowires through metal-catalyzed vapor phase epitaxy is a very attractive process to generate high-quality nanowires thus providing an additional degree of freedom in design of innovative devices that extend beyond what is achievable with the current technologies. In this nano-fabrication process, nanowires grow through the condensation of atoms released from a molecular vapor (called precursors) at the surface of metallic nano-droplets. Gold is broadly used to form these nano-droplets. This self-assembly of nanowires takes place spontaneously at optimal temperature and vapor pressure and can be applied to synthesize any type of semiconductor nanowires. However, to functionalize these nanomaterials a precise introduction of impurities is central to tune their electronic and optical properties. For instance, the introduction of group III and V impurities in a silicon lattice is a crucial step for optimal design and performance of silicon nanowire technologies. The accurate control of this doping process remains an outstanding challenge that is increasingly complex as a result of the relentless drive toward device miniaturization and the emergence of novel nanoscale device architectures.
In a recent development, a team of scientists from Polytechnique Montréal (Canada), Northwestern University (USA), and Max Planck Institute of Microstructure Physics (Germany) led by Professor Oussama Moutanabbir has made a fascinating discovery of a novel process to precisely functionalize nanowires. By using aluminum as a catalyst instead of the canonical gold, the team demonstrated that the growth of nanowires triggers a self-doping process involving the injection of aluminum atoms thus providing an efficient route to dope nanowires without the need of post-growth processing typically used in semiconductor industry. Besides the technological implications, this self-doping implies atomic scale processes that are crucial for the fundamental understanding of the catalytic assembly of nanowires. The scientists investigated this phenomenon at the atomistic-level using the emerging technique of highly focused ultraviolet laser-assisted atom-probe tomography to achieve three-dimensional atom-by-atom maps of individual nanowires. A new predictive theory of impurity injections was also developed to describe this self-doping phenomenon, which provides myriad opportunities to create entirely new class of nanoscale devices by precisely tailoring shape and composition of nanowires. The results of their breakthrough will be published in Nature.
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- Nanotechnology Market on a Growth Trajectory: Forecasted to Reach USD 33.63 Billion by 2030on May 8, 2024 at 12:14 am
Allied Market Research, titled, “Nanotechnology Market By Type, and Application: Global Opportunity Analysis and Industry Forecast, 2021–2030,” the global nanotechnology market size was valued at ...
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- Nanotechnology Market to Surpass USD 53.51 Billion by 2031 | SkyQuest Technologyon April 23, 2024 at 8:43 am
SkyQuest projects that the nanotechnology market will attain a value of USD 53.51 billion by 2031, with a CAGR of 36.4% over the forecast period (2024-2031). The increasing demand for nanotechnology ...
- Electrical control of magnetism by electric field and current-induced torqueson April 16, 2024 at 7:06 am
In a review article published in Reviews of Modern Physics, Fèlix Casanova from the Nanodevices group at CIC nanoGUNE, Prof. Albert Fert, Nobel Prize in Physics, and his colleagues review the ...
- Physicists discover a novel quantum state in an elemental solidon April 9, 2024 at 5:00 pm
illuminating a pathway to design various forms of future nanodevices and spin-based electronics. From a broader perspective, society benefits when new materials and properties are discovered ...
- Building block for magnetoelectric spin-orbit logic opens new avenue for low-power beyond-CMOS technologieson April 9, 2024 at 5:00 pm
In an article published in Nature Communications, an international team led by researchers from the Nanodevices group at CIC nanoGUNE succeeded in voltage-based magnetization switching and reading ...
- Nanodevices: The Building Blocks of Nanotechnologyon April 7, 2024 at 9:44 pm
Nanodevices are engineered devices or structures with at least one dimension in the nanoscale range, typically between 1 and 100 nanometers. These devices are designed to perform specific functions by ...
- Scientists make 'major finding' with nanodevices that can seemingly produce energy out of thin air: 'Contradicting prior understanding'on April 1, 2024 at 9:13 pm
which can harness the power of evaporation to provide a continuous flow of energy in order to harvest electricity using specialized nanodevices. In less technical terms: It's a way to create clean ...
- Nanometrology: Precision Measurement at the Nanoscaleon March 20, 2024 at 3:15 am
Another challenge is the need for high-throughput and non-destructive nanometrology techniques. As nanomaterials and nanodevices become increasingly complex and diverse, there is a growing demand for ...
- Bridgette Budhlallon July 9, 2018 at 2:41 pm
Polymer colloids, soft matter, stimuli-responsive polymers, emulsion polymerization and water-based polymer coatings, inks and adhesives. Photoresist polymers for nanolithography, nanofluidic devices ...
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- Neuromorphic Chip Market Size To Touch $2734.8 Million By 2031 Driven By Industrial Adoption And Big Data Analysison May 8, 2024 at 10:46 pm
Neuromorphic chips offer a revolutionary approach to computing by mimicking the human brain's structure and function. These chips leverage spiking neural networks (SNNs) that emulate the biological ...
- MKS Instruments Reports First Quarter 2024 Financial Resultson May 8, 2024 at 9:30 am
Our solutions are critical to addressing the challenges of miniaturization and complexity in advanced device manufacturing by enabling increased power, speed, feature enhancement, and optimized ...
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Dennard's claims to fame are enormous. He's the mind behind dynamic random-access memory (DRAM), the ubiquitous memory that quite literally makes our computers and smartphones function.
- Intel: The Market Is Too Bearishon May 6, 2024 at 7:15 am
Intel Corporation's first-quarter earnings beat estimates, fueled by growth in the Client Computing Group, with good margins. Read more about INTC stock here.
- Humidity Sensor Market To Reach USD 9.4 Billion By 2032 | DataHorizzon Researchon May 5, 2024 at 10:30 pm
The humidity sensor market size was valued at USD 4.9 Billion in 2023 and is anticipated to grow CAGR at 7.4% to reach USD 9.4 Billion by 2032.Fort Collins, Colorado, May 06, 2024 (GLOBE NEWSWIRE) -- ...
- It May be Possible to Power Implantable Generators with Our Bodieson May 3, 2024 at 7:30 am
Researchers are trying to solve the problem of powering implantable devices to help improve and save lives.
- Cardiac Monitoring & Cardiac Rhythm Management Devices Market Worth $26.4 billion | MarketsandMarkets™on May 2, 2024 at 7:30 am
Cardiac Monitoring & Cardiac Rhythm Management Devices Market in terms of revenue was estimated to be worth $21.3 billion in 2024 and is poised to reach $26.4 billion by 2029, growing at a CAGR of 4.3 ...
- High-intensity spatial-mode steerable frequency up-converter toward on-chip integrationon May 1, 2024 at 1:13 pm
Electronic Science discusses high-intensity spatial-mode steerable frequency up-converter toward on-chip integration. Integrated photonic devices consisting of micro-lasers, amplifiers, ...
- Revolutionary AI device utilizes few-molecule reservoir computing for blood glucose predictionon April 26, 2024 at 10:15 am
A collaborative research team from NIMS and Tokyo University of Science has successfully developed a cutting-edge artificial intelligence (AI) device that executes brain-like information processing ...
- High-precision blood glucose level prediction achieved by few-molecule reservoir computingon April 26, 2024 at 9:24 am
A collaborative research team from NIMS and Tokyo University of Science has successfully developed an artificial intelligence (AI) device that executes brain-like information processing through ...
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