Electronics

Researchers at MIT have found a way to make graphene with fewer wrinkles, and to iron out the wrinkles that do appear. They found each wafer exhibited uniform performance, meaning that electrons flowed freely across each wafer, at similar speeds, even across previously wrinkled regions.

Researchers “iron out” graphene’s wrinkles

New technique produces highly conductive graphene wafers.

April 3, 2017

Researchers from the MIT Media Lab developed a new technique that makes image acquisition using compressed sensing 50 times as efficient. In the case of the single-pixel camera, it could get the number of exposures down from thousands to dozens. Examples of this compressive ultrafast imaging technique are show on the bottom rows.

A faster single-pixel camera

New technique greatly reduces the number of exposures necessary for “lensless imaging.”

March 29, 2017

These scanning electron microscope images show the sequence of fabrication of fine lines by the team's new method. First, an array of lines is produced by a conventional electron beam process (top). The addition of a block copolymer material and a topcoat result in a quadrupling of the number of lines (center). Then the topcoat is etched away, leaving the new pattern of fine lines exposed (bottom)...

A big leap toward tinier lines

Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns.

March 27, 2017

Toward printable, sensor-laden “skin” for robots

New 3-D-printed device mimics the goldbug beetle, which changes color when prodded.

March 23, 2017

Researchers from MIT’s Microsystems Technologies Laboratories (MTL) have designed a new power converter that maintains its efficiency at currents ranging from 100 picoamps to 1 milliamp, a span that encompasses a millionfold increase in current levels.

Researchers devise efficient power converter for internet of things

Design reduces converter’s resting power consumption by 50 percent.

February 17, 2017

Researchers at MIT’s Microsystems Technology Laboratories have built a low-power chip specialized for automatic speech recognition. With power savings of 90 to 99 percent, it could make voice control practical for relatively simple electronic devices.

Voice control everywhere

Low-power special-purpose chip could make speech recognition ubiquitous in electronics.

February 13, 2017

In an effort to get ahead of the problem of counterfeit wireless chargers, MIT researchers have built a chip that blocks attempts to wirelessly charge a device’s battery unless the charger first provides cryptographic authentication.

Secure wireless chargers

New chip would thwart the counterfeiting that plagues the market for wired device chargers.

February 9, 2017

MIT researchers have fabricated a stamp made from forests of carbon nanotubes that is able to print electronic inks onto rigid and flexible surfaces.

Printable electronics

New stamping technique creates functional features at nanoscale dimensions.

December 7, 2016

A pixelated infrared detector array is mated on top of a silicon digital-pixel readout integrated circuit (DROIC) to form an infrared digital-pixel focal plane array (DFPA) image sensor.

Lincoln Laboratory is honored with the Herschel Award

Infrared digital-pixel focal plane arrays are deemed a groundbreaking technology.

December 2, 2016

A team at MIT has found an unexpected discovery about water: Inside the tiniest of spaces — in carbon nanotubes whose inner dimensions are not much bigger than a few water molecules — water can freeze solid even at high temperatures that would normally set it boiling. The finding might lead to new applications such as ice-filled wires.

Inside tiny tubes, water turns solid when it should be boiling

MIT researchers discover astonishing behavior of water confined in carbon nanotubes.

November 28, 2016

Images produced from computer simulations show the response of a graphene surface as a silicon tip slides over it. Relative forces of atomic friction on the surface are shown by colors: Red points are “pushing” sites that help propel the tip along the surface, while blue points are “pinning” sites of greater friction that inhibit the tip’s motion.

The science of friction on graphene

Sliding on flexible graphene surfaces has been uncharted territory until now.

November 23, 2016

MIT researchers have developed a stretchy optical fiber in which they have injected multiple organic dyes (yellow, blue, and green regions). In addition to lighting up, the dyes act as a strain sensor, enabling researchers to quantify where and by how much a fiber has been stretched.

Stretchy optical fibers for implanting in the body

Biocompatible fibers could use light to stimulate cells or sense signs of disease.

October 17, 2016

MIT researchers have found that interactions between electrons and heat-carrying particles called phonons can play a significant role in preventing heat dissipation in microelectronic devices.

Electron-phonon interactions affect heat dissipation in computer chips

Study shows particle collisions may explain overheated circuits, improve thermoelectric devices.

October 12, 2016

This computational illustration shows a graphene network structure below a layer of water.

How to power up graphene implants without frying cells

New analysis finds way to safely conduct heat from graphene to biological tissues.

September 23, 2016

The researchers’ compiler takes as input differential equations and translates them into voltages and current flows across an analog chip.

Analog computing returns

New analog compiler could help enable simulation of whole organs and even organisms.

June 20, 2016

MIT News | Massachusetts Institute of Technology

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