tag: graphene

Power/Performance Bits: May 31
By Jesse Allen - 31 May, 2016 - Comments: 0

Solar thermophotovoltaics A team of MIT researchers demonstrated a device based on a method that enables solar cells to break through a theoretically predicted ceiling on how much sunlight they can convert into electricity. Since 1961 it has been known that there is an absolute theoretical limit, called the Shockley-Queisser Limit, to how efficient traditional solar cells can be in their ... » read more

Power/Performance Bits: May 17
By Jesse Allen - 17 May, 2016 - Comments: 0

Shrinking perovskites Researchers from Imperial College London, Oxford University, Diamond Light Source, Pohang University of Science and Technology in Korea, and Rutgers University have discovered a material that can be chemically tailored to either expand or contract in a precise way and over a wide temperature range. This could lead to new composite materials that do not expand when heate... » read more

Next EUV Challenge: Pellicles
By Mark LaPedus - 27 Apr, 2016 - Comments: 1

Extreme ultraviolet (EUV) lithography is still not ready for high-volume manufacturing, but the technology is at least moving in the right direction. Both the [gettech id="31045" comment="EUV"] light source and resists are making noticeable progress, even though there are still challenges in the arena. And then, there is the EUV mask infrastructure, which also has some gaps. “When EUV i... » read more

Manufacturing Bits: March 22
By Mark LaPedus - 22 Mar, 2016 - Comments: 0

Tunable windows Harvard University has put a new twist on tunable windows. Researchers have devised a new manufacturing technique that can change the opacity of a window. With the flip of a switch, the window can become cloudy, clear or somewhere in the middle. Tunable windows, which aren’t new, rely on electrochemical reactions. Typically, the glass is coated with materials using vacuum... » read more

System Bits: Feb. 23
By Ann Mutschler - 23 Feb, 2016 - Comments: 0

Making electrons act like liquid While electrical resistance is a simple concept in that rather like friction slowing down an object rolling on a surface, resistance slows the flow of electrons through a conductive material, and now, MIT professor of physics Leonid Levitov and Gregory Falkovich, a professor at Israel’s Weizmann Institute of Science have found that electrons can sometimes tur... » read more

Manufacturing Bits: Feb. 16
By Mark LaPedus - 16 Feb, 2016 - Comments: 0

Monoxide chips Two-dimensional (2D) materials are gaining steam in the R&D labs. The 2D materials could enable a new class of field-effect transistors (FETs), but the technology isn’t expected to appear until sometime in the next decade. The 2D materials include graphene, boron nitride and the transition-metal dichalcogenides (TMDs). One TMD, molybdenum diselenide (MoS2), is gaining inter... » read more

System Bits: Feb. 2
By Ann Mutschler - 02 Feb, 2016 - Comments: 0

Wearable sensors reveal health data from sweat In the name of science, UC Berkeley researchers want you to break out into a sweat — so it can be analyzed, of course. Specifically, the researchers have created a flexible sensor system that can measure metabolites and electrolytes in sweat, calibrate the data based upon skin temperature and sync the results in real time to a smartphone. The... » read more

Power/Performance Bits: Feb. 2
By Jesse Allen - 02 Feb, 2016 - Comments: 0

Single electron transistors A group coordinated by the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) is setting out on a four year program to develop single electron transistors fully compatible with CMOS technology and capable of room temperature operation. The single electron transistor (SET) switches electricity by means of a single electron. The SET is based on a quantum dot (consisting... » read more

System Bits: Jan. 26
By Ann Mutschler - 26 Jan, 2016 - Comments: 0

Precisely controlling graphene molecules Researchers at UCLA’s California NanoSystems Institute have found that in the same way gardeners may use sheets of plastic with strategically placed holes to allow plants to grow but keep weeds from taking root, the same basic approach can be applied in terms of placing molecules in the specific patterns they need within tiny nanoelectronic devices, w... » read more

System Bits: Jan. 19
By Ann Mutschler - 19 Jan, 2016 - Comments: 0

Electromagnetic properties of graphene-boron nitride materials Rice University and Montreal Polytechnic researchers reported that developing novel materials from the atoms up goes faster when some of the trial and error is eliminated. The work aims to simplify development of certain exotic materials for next-generation electronics. Specifically, Rouzbeh Shahsavari, a Rice materials scient... » read more

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