Bulletin of the American Physical Society
2011 Annual Meeting of the Four Corners Section of the APS
Volume 56, Number 11
Friday–Saturday, October 21–22, 2011; Tuscon, Arizona
Session D6: Applied Physics I |
Hide Abstracts |
Chair: Vincent Lonij, University of Arizona Room: UA Student Union Santa Cruz |
Friday, October 21, 2011 2:00PM - 2:12PM |
D6.00001: Fluctuation Theorems for Individual Currents in Open Electric Circuits Nikolai Sinitsyn We present a new class of fluctuation theorems for currents through specific components of mesoscopic electric circuits. We will refer to our results as Fluctuation Theorems for Individual Currents (FTICs). FTICs can be used to estimate system parameters when complete information about nonequilibrium many-body electron interactions is unavailable. We show that FTICs are often robust in the sense that they do not depend on some basic types of electron interactions. We also argue that principles that lead to FTICs in electric circuits extend to the quantum mechanical regime. [Preview Abstract] |
Friday, October 21, 2011 2:12PM - 2:24PM |
D6.00002: Examination of P3 Line Scribe Defects in Electroluminescence Imaging of CdTe Solar Cells Tyler McGoffin Thin film Cadmium Telluride photovoltaics is a promising technology for future energy solutions due to its ideal band gap energy and relatively low cost. Because of this promise, there has been much recent advancement in CdTe technologies, including characterization techniques and interpretation. One such technology is Electroluminescence (EL): effectively turning a solar cell into and infrared LED. This characterization technique allows for fast, spatially resolved data from which much information can be gleaned, and even has promise for quality control testing in an industrial environment. Examination of this data has shown many interesting characteristics, including a unique signature indicating a defect in the P3 line scribe. This trait can be seen very easily in the EL image, and the data and interpretations thereof are offered in this presentation. [Preview Abstract] |
Friday, October 21, 2011 2:24PM - 2:36PM |
D6.00003: Impedance spectroscopy of concrete cover on bridge decks with reinforcing steel Paul Bartholomew, Bryan Blankenagel, Spencer Guthrie, Brian Mazzeo Chloride-induced corrosion of reinforcing steel is a major problem for aging bridge structures near marine environments or in cold regions where deicing salts are applied as part of winter maintenance. Corrosion is the result of the interaction of diffused chloride ions with the embedded steel. One property of affected decks that facilitates detection of chloride ions is their ability to conduct electricity. Impedance spectroscopy can be used to measure concrete conductivity and thereby identify areas of increased chloride concentration characterized by elevated risks of corrosion. A new probe and measurement apparatus has been engineered to measure large areas of concrete on bridge decks. Comparison between measurements obtained in the laboratory and in the field will be presented. [Preview Abstract] |
Friday, October 21, 2011 2:36PM - 2:48PM |
D6.00004: I-V Curves from Photovoltaic Modules Deployed in Tucson Emily Kopp, Adria Brooks, Vincent Lonij, Alex Cronin More than 30 Mega Watts of photo-voltaic (PV) modules are connected to the electric power grid in Tucson, AZ. However, predictions of PV system electrical yields are uncertain, in part because PV modules degrade at various rates (observed typically in the range 0{\%} to 3 {\%}/yr). We present I-V curves (PV output current as a function of PV output voltage) as a means to study PV module efficiency, de-ratings, and degradation. A student-made I-V curve tracer for 100-Watt modules will be described. We present I-V curves for several different PV technologies operated at an outdoor test yard, and we compare new modules to modules that have been operated in the field for 10 years. [Preview Abstract] |
Friday, October 21, 2011 2:48PM - 3:00PM |
D6.00005: Extreme Ultraviolet lithography by de-magnified generalized Talbot imaging Lukasz Urbanski, Artak Isoyan, Aaron Stein, Carmen Menoni, Jorge Rocca, Mario Marconi We present first to our knowledge demonstration of Extreme Ultraviolet (EUV) lithography scheme based on de-magnified generalized Talbot imaging. A self image of a periodic mask is de-magnified and recorded in photoresist resulting in a scaled down image of the mask. De-magnification is achieved by introducing a converging beam illumination. The illumination source is 46.9nm neon-like argon laser, which emits highly temporally and spatially coherent EUV light. This laser provides high resolution printing due to short wavelength of illumination. Presented method enables cost effective, high resolution printing of arrays of arbitrary patterns over large areas in a noncontact mode which can be further de-magnified by several tens of percent. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700