Researchers discuss the top-down and bottom-up strategies for the synthesis of graphene quantum dots. The respective advantages and disadvantages of these methods are summarized.
Jan 21st, 2021
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Scientists combine scanning tunneling microscopy with ultrafast spectroscopy to image the motion of electrons with unprecedented resolution, which may lead to advances in semiconductors and optoelectronics.
Jan 21st, 2021
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Researchers have found a way to grow a single crystalline layer of alpha-aluminum gallium oxide that has the widest energy bandgap to date - a discovery that clears the way for new semiconductors that will handle higher voltages, higher power densities and higher frequencies than previously seen.
Jan 21st, 2021
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Researchers have developed an electrochromic hydrogen-bonded organic frameworks film with long cycle life, facile modification, easy recycling and regeneration prepared via electrophoretic deposition rapidly and facile.
Jan 21st, 2021
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A new X-ray laser oscillator generates types of pulses that were never before possible. The pulses are stable, intense, and of ultrashort duration and have a well-defined wavelength. This ability opens new possibilities in experiments and research.
Jan 20th, 2021
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Scientists have developed a metamaterial whose mechanical properties can be reprogrammed on demand and whose internal structure can be modified by applying a magnetic field.
Jan 20th, 2021
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Researchers report a prototype of an anode-free, zinc-based battery that uses low-cost, naturally abundant materials.
Jan 20th, 2021
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Researchers have used lasers to create miniature robots from bubbles that lift, drop and manipulate small pieces into interconnected structures.
Jan 20th, 2021
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Using DNA as a scaffold, engineers create a synthetic nanomaterial that could pave the way for rapid and more accurate diagnostic testing from a single molecule.
Jan 20th, 2021
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Transport processes are ubiquitous in nature but still raise many questions. Scientists have now developed a new method that allows them to observe a single charged particle on its path through a dense cloud of ultracold atoms.
Jan 20th, 2021
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New photo-ferroelectric materials allow to store information in a non-volatile way using light stimulus. The idea is to create energy efficient memory devices with high performance and versatility to face the challenges of the current society.
Jan 20th, 2021
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Researchers have developed a groundbreaking validation protocol for simulations of the atomic structure of the interface between a solid (a metal oxide) and liquid water.
Jan 20th, 2021
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Scientists have found a way to prevent gold nanoparticles from clumping, which could help towards their use as an anti-cancer therapy.
Jan 20th, 2021
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Scientists have discovered a new light-induced switch that twists the crystal lattice of the material, switching on a giant electron current that appears to be nearly dissipationless. The discovery was made in a category of topological materials that holds great promise for spintronics, topological effect transistors, and quantum computing.
Jan 19th, 2021
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A pulsed-laser repetition rate of 57.8 GHz was achieved by inserting a resonator containing graphene. The limitations of the manufacturing process were overcome by directly synthesizing graphene onto standard copper wires.
Jan 19th, 2021
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A new type of ultra-efficient, nano-thin material could advance self-powered electronics, wearable technologies and even deliver pacemakers powered by heart beats.
Jan 19th, 2021
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