tag: Purdue University

Power/Performance Bits: Jan. 12
By Jesse Allen - 12 Jan, 2016 - Comments: 0

Incandescent bulbs might not be dead yet Can incandescent bulbs be as efficient – or even more so – than LEDs? More than 95 percent of the energy that goes into incandescents is wasted, most of it as heat, so researchers at MIT and Purdue University struck out to see if that could be changed. A conventional heated metal filament, with all its attendant losses, served as the basis. But... » read more

Power/Performance Bits: Dec. 23
By Jesse Allen - 23 Dec, 2015 - Comments: 0

GaN building blocks A team of engineers from Cornell University, the University of Notre Dame, and the semiconductor company IQE created gallium nitride (GaN) power diodes capable of serving as the building blocks for future GaN power switches. In spite of having many desirable features as a material, GaN is notorious for its defects and reliability issues. So the team zeroed in on device... » read more

Manufacturing Bits: Nov. 10
By Mark LaPedus - 10 Nov, 2015 - Comments: 1

Etching superconducting materials Superconductors are devices that have zero electrical resistance, making them attractive for a range of applications. But superconductors must be cooled down to temperatures at or near absolute zero on the Kelvin scale to work. This, in turn, limits their applications. Absolute zero equates to −273.15° on the Celsius scale and −459.67° on the Fahrenheit ... » read more

System Bits: Nov. 10
By Ann Mutschler - 10 Nov, 2015 - Comments: 0

Wrapping silver nanowires While they hold promise for applications including flexible displays and solar cells, silver nanowires are also susceptible to damage from highly energetic UV radiation and harsh environmental conditions has limited their commercialization, according to Purdue University researchers. However, new research suggests wrapping the nanowires with an ultrathin layer of c... » read more

Power/Performance Bits: Sept. 15
By Jesse Allen - 15 Sep, 2015 - Comments: 0

Stretchy metal Washington State University researchers stretched metal films used in flexible electronics to twice their size without breaking. The discovery could lead to dramatic improvements and addresses one of the biggest challenges in flexible electronics, an industry still in its infancy with applications such as bendable batteries, robotic skins, wearable monitoring devices and se... » read more

Power/Performance Bits: Aug. 4
By Jesse Allen - 04 Aug, 2015 - Comments: 0

Superfast fluorescence Duke University researchers developed an ultrafast light-emitting device, pushing semiconductor quantum dots to emit light at more than 90 gigahertz. This device could one day be used in optical computing chips or for optical communication between traditional electronic microchips. The new speed record was set using plasmonics. When a laser shines on the surface of ... » read more

System Bits: April 14
By Ann Mutschler - 14 Apr, 2015 - Comments: 0

Antennas on a chip In what is being called the missing piece of the puzzle of electromagnetic theory, a team of researchers at the University of Cambridge have figured out one of the mysteries of electromagnetism, that they believe could allow the design of antennas small enough to be integrated into a chip. These ultra-small antennas – the so-called ‘last frontier’ of semiconductor desi... » read more

System Bits: March 31
By Ann Mutschler - 31 Mar, 2015 - Comments: 0

Virtual nose reduces video game simulator sickness While virtual reality games often cause simulator sickness – inducing vertigo and sometimes nausea — new research by Purdue University points to a potential strategy to ease the affliction: adding a virtual nose. They explained that a number of physiological systems control the onset of simulator sickness including a person's overall se... » read more

Power/Performance Bits: March 24
By Jesse Allen - 24 Mar, 2015 - Comments: 0

Power from packing peanuts After setting up a new lab, a Purdue University research team was left with a problem: mountains of packing peanuts. Instead of filling bags destined for a dumpster, the team saw an opportunity to find the packing material a useful purpose. The result was a process to convert waste packing peanuts into high-performance carbon electrodes for rechargeable lithium-... » read more

Power/Performance Bits: March 10
By Jesse Allen - 10 Mar, 2015 - Comments: 0

Simulated memories Resistance-switching cells hold promise as a faster, higher capacity, lower power replacement for current non-volatile memory. Yet "the mechanisms that govern their remarkable properties have been poorly understood, limiting our ability to assess the ultimate performance and potential for commercialization," said Alejandro Strachan, professor of materials engineering at Pu... » read more

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