Over 40 years of thin film process innovations have helped enable the IC industry today to produce well over 1018 transistors per year at costs of nanodollars per transistor thereby empowering the information age. Likewise large area thin film manufacturing has dramatically improved the performance and cost of low cost displays over the past 15 years, enabling high definition video from the handheld to the wall mounted HDTV.
Cloud Computing is a term coined for a recent trend toward service-oriented computing on cluster-based distributed systems. Such systems provide users with a computing paradigm based on service-level agreements with which users gain access to vast, large-scale resources remotely.
Development and population growth are placing unprecedented demands on global resources. This talk will examine these circumstances, both globally and locally.
The continuing rise in greenhouse gases (GHG) in Earth’s atmosphere caused by human activity is beginning to alter the delicately balanced climate system. Means to slow down the rate of GHG emissions are needed to avoid catastrophic climate change in the future. While moving from a high-carbon to a low-carbon energy system is the long term solution, more energy efficient cyberinfrastructure can provide some relief in the short term.
In this talk, we describe LoCal, a research project at Berkeley that applies the lessons of the Internet, for building distributed and robust communications infrastructures, to a radical new architecture for energy generation, distribution and sharing. We introduce the concept of packetized energy, stored and forwarded to where it is locally needed, exploiting technology for more efficient energy storage. Like the Internet, quality is achieved end-to-end via protocols over a best-effort, resilient and scalable infrastructure.
This talk examines two related questions:
How feasible is to limit global warming to 1.5 or 2 deg C?
To what extent is it possible to establish a particular warming level as dangerous?
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What it covers:
Group-III nitrides are the key materials for light-emitting diodes in the blue part of the visible spectrum, which are the basis for high-efficiency solid-state general lighting. A large research effort is aimed at extending this success to the green and the yellow range, where nitride LEDs are significantly less efficient. Though it has been noted that the efficiency of III-nitride devices may be limited by Shockley-Read-Hall recombination at point defects, the microscopic mechanism and defects responsible are unknown.
Conjugated polymers provide a unique encompassing set of structurally tunable optical, electronic transport, and redox properties that allows their present and potential use in a host of applications which span, field effect transistors, light emitting diodes, solar cells and photodetectors, electrochromism, along with batteries and supercapacitors. Processing of these materials is carried out using a variety of solution methods including spin-coating, spray-coating, blade-coating, slot die coating and ink jet printing. In this lecture, we will use the reversible redox switching
