September 20, 2014

Competition for Graphene: Researchers Demonstrate Ultrafast Charge Transfer in New Family of 2-D Semiconductors

A new argument has just been added to the growing case for graphene being bumped off its pedestal as the next big thing in the high-tech world by the two-dimensional semiconductors known as MX2 materials.Illustration of a MoS2/WS2 heterostructure with a MoS2 monolayer lying on top of a WS2 monolayer. Electrons and holes created by light are shown to separate into different layers. (Image courtesy of Feng Wang group) An international collaboration of researchers led by a scientist with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) has reported the first experimental observation of ultrafast charge…

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Two-dimensional Material Shows Promise for Optoelectronics

A team of MIT researchers has used a novel material that’s just a few atoms thick to create devices that can harness or emit light. This proof-of-concept could lead to ultrathin, lightweight, and flexible photovoltaic cells, light emitting diodes (LEDs), and other optoelectronic devices, they say. Their report is one of three papers by different groups describing similar results with this material, published in the March 9 issue of Nature Nanotechnology. The MIT research was carried out by Pablo Jarillo-Herrero, the Mitsui Career Development Associate Professor of Physics, graduate students Britton Baugher and Yafang Yang, and postdoc Hugh Churchill. The…

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Nanobots Powered by Sound Waves Could Herald New Chapter in Drug Delivery and Treatment

Researchers working at the Penn State University have succeeded in propelling tiny robots inside living human cells using sound waves. These tiny machines—referred to as nanomachines or nanobots—could mark a new chapter in treating diseases and drug delivery. According to Tom Mallouk, a researcher who was a part of the team at Penn State, the first-generation motors that were developed by them could not move around inside biological fluid, and they only worked on fuels that were toxic to the human body. This restricted the ability of researchers to study nanobots inside living human cells. However, researchers seem to have…

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Researchers Make Breakthrough in Battery Technology

Researchers at the Materials and Surface Science Institute (MSSI), University of Limerick have made a significant breakthrough in the area of rechargeable battery technology. There is an ever-increasing demand for portable electronic devices, and improved technology for battery life and stability is a vital factor in device performance. The combined value of the market for rechargeable battery technology is set to grow from $11.8 billion in 2010 to $53.7 billion in 2020. The research team at UL have developed a technology that more than doubles the capacity of lithium-ion battery anodes and retains this high capacity even after being charged…

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Ballistic Transport in Graphene Suggests New Type of Electronic Device

Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at room temperature – a property known as ballistic transport.

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An Empirical LTE Smartphone Power Model with a View to Energy Efficiency Evolution

Smartphone users struggle with short battery life, and this affects their device satisfaction level and usage of the network. To evaluate how chipset manufacturers and mobile network operators can improve the battery life, we propose a Long Term Evolution LTE smartphone power model. The idea is to provide a model that makes it possible to evaluate the effect of different terminal and network settings to the overall user equipment energy consumption. It is primarily intended as an instrument for the network engineers in deciding on optimal network settings, but could also be beneficial for chipset manufacturers to identify main power…

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The Evolution of the Protocol Stack from 3G to 4G and 5G

Over the past decade the wireless industry increased capacity a thousandfold, and by doing so not only fueled the explosive growth of mobile communication applications but also shaped the global mobile Internet as we know today. Three key factors contributed to this huge capacity expansion: the dramatic improvement of spectral efficiency in 3G and 4G air interfaces, the unprecedented spectrum allocation for mobile networks in the world, and the continuing evolution of the radio access network and core network architecture. This article describes the pivotal role of wireless protocol stack design behind these three factors that enabled and supported the…

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A Breakthrough in Rechargeable Battery Applications

An engineer has made a breakthrough in rechargeable battery applications. The bottom image shows a self-standing molybdenum disulfide/graphene composite paper electrode and the top image highlights its layered structure. Gurpreet Singh, assistant professor of mechanical and nuclear engineering at Kansas State University, and his student researchers are the first to demonstrate that a composite paper – made of interleaved molybdenum disulfide and graphene nanosheets – can be both an active material to efficiently store sodium atoms and a flexible current collector. The newly developed composite paper can be used as a negative electrode in sodium-ion batteries. “Most negative electrodes for…

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Embedded Systems Market Analysis and Forecast: Hardware, Software and Tools

Embedded systems are critical in many industries and are found in large stationary installations (traffic lights, factory controllers, MRI machine, automobiles, etc.) as well as many modern consumer electronics and appliances such as watches, cell phones, microwaves, security systems, video entertainment systems (DVD player, console, set-top box), and more.  Some embedded systems include an operating system, but many are so specialized that the entire logic can be implemented as a single program. This report evaluates the embedded systems market including market drivers, opportunities, and forecast 2014 – 2019.  Analysis and forecasts cover the overall Embedded Systems market, COTS market and…

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Flip Chip Technologies Market to Reach $36.5 Billion by 2018

Flip chip technology has enabled electronics to reach new levels of performance, while fueling the growth of global markets for semiconductors, electronic devices, and a host of industrial and consumer products. Technological advances, shrinking chip size,  improved thermal heat transfer, and increasing use in communication and other devices are expected to drive significant near-term growth. Flip chip technologies market was valued at $18.9 billion in 2012 and is estimated at $20.1 billion for 2013.  According to a new study, “Flip-Chip Technologies and Global Markets“, this market is expected to grow to nearly $36.5 billion by 2018, and register a five-year compound…

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