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    Category Technology/Electronics

    ‘Egg Carton’ Quantum Dot Array could lead to Ultralow Power Devices

    March 5, 2021, Categories  Physics, Technology/Electronics

    An illustration of the egg crate electronic structure, shown between two mirrors so that the red laser light resonates. The polaritons, trapped in the pockets, are represented by the sum of their parts: a green exciton, with electron and hole shown inside, attached to a red lightwave. Even with just a few excitons in the wells, the energy required to add a new one begins to jump
      An illustration of the egg crate electronic structure, shown between two mirrors so that the red laser light resonates. The polaritons, trapped in the pockets, are represented by the sum of their parts: a green exciton, with electron and hole shown inside, attached to a red lightwave. Even with just a few excitons in the wells, the energy required to add a new one begins to jump. Credit: Long Zhang, Deng Lab, University of Michigan.

    A new path toward sending and receiving information with single photons of light has been discovered by an international team of researchers led by the University of Michigan...

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    New Strategy for Efficient OLED Active Matrix Displays

    March 3, 2021, Categories  Physics, Technology/Electronics, Chemistry/Nanotechnology

    The device architecture of organic permeable base light-emitting transistors (OPB-LET).

    Researchers introduce a novel device concept towards high-efficient and low-voltage vertical organic lighting-emitting transistors. With the new device architecture and fabrication technology, the team paves the way for a broad application of efficient OLED active matrix displays.

    In the group of Prof. Karl Leo, physicists, material scientists and engineers are working jointly on the development of novel organic materials and devices for high performance, flexible and possibly even biocompatible electronics and optoelectronics of the future. Increasing the performance of organic devices is one of the key challenges in their research. It was only last year, when the team headed by Dr...

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    Sub-diffraction Optical Writing enables Data Storage at the Nanoscale

    March 1, 2021, Categories  Physics, Technology/Electronics

    Sub-diffraction optical writing enables data storage at the nanoscale
    Credit: University of Shanghai for Science and Technology

    The total amount of data generated worldwide is expected to reach 175 zettabytes (1 ZB equals 1 billion terabytes) by 2025. If 175 ZB were stored on Blu-ray disks, the stack would be 23 times the distance to the moon. There is an urgent need to develop storage technologies that can accommodate this enormous amount of data.

    The demand to store ever-increasing volumes of information has resulted in the widespread implementation of data centers for Big Data. These centers consume massive amounts of energy (about 3% of global electricity supply) and rely on magnetization-based harddisk drives with limited storage capacity (up to 2 TB per disk) and lifespan (three to five years)...

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    Pushing Computing to the edge by Rethinking Microchips’ Design

    February 28, 2021, Categories  Technology/Electronics

    Princeton researchers have created a new chip that speeds artificial intelligence systems called neural nets while slashing power use. The chips could help bring advanced applications to remote devices such as cars and smartphones.
    Photos by Hongyang Jia/Princeton University

    Responding to artificial intelligence’s exploding demands on computer networks, Princeton University researchers in recent years have radically increased the speed and slashed the energy use of specialized AI systems. Now, the researchers have moved their innovation closer to 0003Verma, a professor of electrical and computer engineering at Princeton and a leader of the research team. “The hope is that designers can keep using the same software system — and just have it work ten times faster or more efficiently.”

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