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Browsing Faculty Research Publications (Electrical Engineering and Computer Science) by Issue Date

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Browsing Faculty Research Publications (Electrical Engineering and Computer Science) by Issue Date

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  • Kim, S. B.; Wager, J. F. (The American Insitute of Physics, 1988-11-07)
    White electroluminescence (EL) was observed for the first time from diamond-like carbon (DLC) films at room temperature. ac voltages in excess of 200 V were applied to a metal-insulator-semiconductor (i.e., DLC)-insulato ...
  • Weisshaar, A.; Lary, J.; Goodnick, S. M.; Tripathi, V. K. (American Institute of Physics, 1989-11-13)
    We have used the modal expansion of the wave function in the discontinuity region based on the superposition principle together with a mode-matching technique to investigate the transmission characteristics of semiconduc ...
  • McArthur, R. C.; Davidson, J. D.; Wager, J. F.; Khormaei, I.; King, C. N. (The American Insitute of Physics, 1990-05-07)
    The capacitance-voltage (C-V) technique is proposed as a method for characterization of the electrical properties of alternating-current thin-film electroluminescent (ACTFEL) display devices. Analysis of the C-V and agin ...
  • Wu, J. C.; Wybourne, M. N.; Yindeepol, W.; Weisshaar, A.; Goodnick, S. M. (American Institute of Physics, 1991-07-01)
    Narrow channel devices were fabricated using a split-gate high electron mobility transistor structure in which electrons are forced through a double-bend discontinuity. The low-temperature conductance shows a number of p ...
  • Abu-Dayah, A.; Kobayashi, S.; Wager, J. F. (The American Institute of Physics, 1993-02-15)
    The internal charge versus phosphor field (Q-Fp) technique is proposed as a method for characterization of the electrical properties of alternating-current thin-film electroluminescent (ACTFEL) devices. Q-Fp analysis pro ...
  • Douglas, A. A.; Wager, J. F.; Morton, D. C.; Koh, J. B.; Hogh, C. P. (The American Insitute of Physics, 1993-07-12)
    Hot electron luminescence experiments are performed on ZnS alternating-current thin-film electroluminescent (ACTFEL) devices in order to determine the extent to which the electron distribution is heated. The luminescence ...
  • Liliental, Z.; Wager, J. F.; Goodnick, S. M. (The American Institute of Physics, 1995-03-01)
    InP/SiO₂ interfaces have been studied by high resolution electron microscopy in cross section, by ellipsometry, and by x-ray photoelectron spectroscopy. The roughness of the interface is shown to vary from 10 to 100 Å pe ...
  • Shih, S.; Keir, P.D.; Hitt, J. C.; Wager, J. F. (American Institute of Physics, 1996-09-23)
    Offset is observed in the charge–voltage (Q–V) or internal charge–phosphor field (Q–Fp) characteristics of certain alternating-current thin-film electroluminescent (ACTFEL) devices. This offset arises from a displaceme ...
  • Keir, P. D.; Le, H.; Thuemler, R. L.; Hitt, J. C.; Wager, J. F. (American Institute of Physics, 1996-10-14)
    Anomalous charge-voltage (Q-V) characteristics are observed for several types of alternating-current thin-film electroluminescent (ACTFEL) devices. These Q-V curves are anomalous because conduction charge flows in these ...
  • Lite, K.; Thuemler, R. L.; Plant, T. K.; Wager, J. F.; Morton, D. C.; Sun, S. S.; Mauch, R. H. (American Institute of Physics, 1996-12-02)
    Vacuum ultraviolet reflectivity measurements of three thin-film electroluminescent phosphors, zinc sulfide (ZnS), strontium sulfide (SrS), and strontium-calcium thiogallate (Sr₀.₄₅Ca₀.₅₅Ga₂S₄), are reported using thin-fi ...
  • Keir, P. D.; Wager, J. F.; Clark, B. L.; Li, D.; Keszler, Douglas A. (American Institute of Physics, 1999-09-06)
    A unique approach for obtaining bright and efficient saturated green phosphors for alternating-current thin-film electroluminescent (ACTFEL) device applications is presented. The approach involves color-shifting blue S ...
  • Baukol, B. A.; Hitt, J. C.; Keir, P. D.; Wager, J. F. (American Institute of Physics, 2000-01-10)
    Electroluminesence (EL) thermal quenching refers a reduction in luminance, concomitant with a reduction in transferred charge, when an alternating-current thin-film electroluminescent (ACTFEL) device is operated at an ...
  • Budd, Timothy (IEEE, 2001-08)
    The digital battery's per-use pricing model may be our best hope for protecting artists' livelihoods, generating meaningful usage statistics, and ensuring consumer privacy.
  • Park, Sangmoon; Keszler, Douglas A.; Valencia, Melinda M.; Hoffman, Randy L.; Bender, Jeffrey P.; Wager, John F. (American Institute of Physics, 2002-01-10)
    p-type conducting films of α- BaCu₂S₂ have been deposited onto glass and KBr substrates, yielding a conductivity of 17 S/cm and a Hall mobility of 3.5 cm²/Vs. For a 430-nm-thick film, the optical transparency approaches ...
  • Hoffman, R. L.; Norris, Benjamin J.; Wager, J. F. (American Institute of Physics, 2003-02-03)
    Highly transparent ZnO-based thin-film transistors (TFTs) are fabricated with optical transmission (including substrate) of ~75% in the visible portion of the electromagnetic spectrum. Current–voltage measurements indica ...
  • Dietterich, Thomas Glen; Ashenfelter, Adam J.; Bulatov, Yaroslav (2004)
    Conditional Random Fields (CRFs; Lafferty, McCallum, & Pereira, 2001) provide a flexible and powerful model for learning to assign labels to elements of sequences in such applications as part-of-speech tagging, text-to ...
  • Bayer-Zubek, Valentina; Dietterich, Thomas Glen (2004-06-30)
    This paper revisits the AO* algorithm introduced by Martelli and Montanari [1] and made popular by Nilsson [2] The paper's main contributions are: (1) proving that the value of a node monotonically increases as the AO* s ...
  • Chiang, H. Q.; Wager, J. F.; Hoffman, R. L.; Jeong, J.; Keszler, Douglas A. (American Institute of Physics, 2004-12-23)
    Transparent thin-film transistors (TTFTs) with an amorphous zinc tin oxide channel layer formed via rf magnetron sputter deposition are demonstrated. Field-effect mobilities of 5–15 and 20–50 cm² V‾¹ s‾¹ are obtained f ...
  • Ilaria, Liccardi; Ounnas, Asma; Pau, Reena; Massey, Elizabeth; Kinnunen, Paivi; Lewthwaite, Sarah; Midy, Marie-Anne; Sarkar, Chandan (2007)
    The aim of this research is to investigate the role of social networks in computer science education. The Internet shows great potential for enhancing collaboration between people and the role of social software has bec ...
  • Jensen, Carlos; Sarkar, Chandan; Jensen, Christian; Potts, Colin (Symposium on Usable Privacy and Security (SOUPS 2007), 2007-07-18)
    In this paper we introduce the iWatch web crawler, a tool designed to catalogue and analyze online data practices and the use of privacy related indicators and technologies. Our goal in developing iWatch was to make poss ...

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