Index Catalog // ScholarsArchive@OSU

Al-In-Sn-O thin-film transistors

Creator:: Stewart, Kevin A.
Abstract:: The aim of the research undertaken for this thesis was to develop a new high-performance amorphous oxide semiconductor (AOS) for use as a channel layer in a thin-film transistor (TFT). AOS TFTs offer higher electron mobility than the established amorphous silicon based technology. A new channel material comprised of aluminum...
Resource Type:: Masters Thesis

Conduction processes in metal–insulator–metal diodes with Ta₂O₅ and Nb₂O₅ insulators deposited by atomic layer deposition

Creator:: Alimardani, Nasir, McGlone, John M., Wager, John F., and Conley, John F., Jr.
Abstract:: Metal–insulator–metal diodes with Nb₂O₅ and Ta₂O₅ insulators deposited via atomic layer deposition are investigated. For both Nb₂O₅ and Ta₂O₅, the dominant conduction process is established as Schottky emission at small biases and Frenkel–Poole emission at large biases. Fowler–Nordheim tunneling is not found to play a role in determining current versus...
Resource Type:: Article
Full Text:: . Prinz, Appl. Phys. Lett. 101, 033905 (2012). 19K. Choi, F. Yesilkoy, G. Ryu, S. H. Cho, N. Goldsman, M

Assessment of High Mobility Oxide Thin-Film Transistors

Creator:: Stewart, Kevin A.
Abstract:: The trend towards higher resolution, faster refresh rate active-matrix liquid-crystal displays (AMLCDs) as well as the emergence of active-matrix organic light-emitting diode (AMOLED) displays is driving the demand for amorphous oxide semiconductor thin-film transistors (AOS TFTs) with higher mobility. A physics-based model for carrier transport in an amorphous semiconductor is...
Resource Type:: Dissertation
Full Text:: mobility increases with refresh rate and res- olution. Adapted from Kwon and Jeong [2

Investigation of ultra-thin In-Ga-Zn-O thin-film transistors

Creator:: Chiang, Tsung-Han
Abstract:: The objective of the work reported herein is to explore the impact of decreasing channel thickness on radio-frequency (RF) sputtered amorphous indium-gallium-zinc oxide (a-IGZO) thin-ﬁlm transistors (TFTs) electrical performance through the evaluation of drain current versus gate voltage (I[subscript D] − V[subscript G]) transfer curves. For a ﬁxed set of...
Resource Type:: Masters Thesis

Investigation of bipolar resistive switching in zinc-tin-oxide for resistive random access memory

Creator:: Murali, Santosh
Abstract:: Resistive random access memory (RRAM) is a non-volatile memory technology based on resistive switching in a dielectric or semiconductor sandwiched between two different metals. Also known as memristors, these devices are potential candidates for a next-generation replacement for flash memory. In this thesis, bipolar resistive switching is reported for the...
Resource Type:: Masters Thesis

Cryptanalysis and enhancement of authentication protocols

Creator:: Kim, Minho
Abstract:: Authentication protocols play important roles in network security. A variety of authentication protocols ranging from complex public-key cryptosystems to simple password-based authentication schemes have been proposed. However, currently there is no fully secure authentication scheme that can resist all known attacks. When a user authentication is performed over an insecure...
Resource Type:: Dissertation
Full Text:: Kim, and my mother, HyunIm Jeong, who have been encouraging, car- ing, and praying for my whole life

Investigation of the impact of insulator material on the performance of dissimilar electrode metal-insulator-metal diodes

Creator:: Alimardani, Nasir, King, Sean W., French, Benjamin L., Tan, Cheng, Lampert, Benjamin P., and Conley, John F., Jr.
Abstract:: The performance of thin film metal-insulator-metal (MIM) diodes is investigated for a variety of large and small electron affinity insulators using ultrasmooth amorphous metal as the bottom electrode. Nb2O5, Ta2 O5, ZrO2, HfO2, Al2 O3, and SiO2 amorphous insulators are deposited via atomic layer deposition (ALD). Reflection electron energy loss...
Resource Type:: Article

Enhancing macrocell downlink performance through femtocell user cooperation

Creator:: Zaid, Adem Mabruk
Abstract:: This thesis studies cooperative techniques that rely on femtocell user diversity to improve the downlink communication quality of macrocell users. We analytically analyze and evaluate the achievable performance of these techniques in the downlink of Rayleigh fading channels. We provide an approximation of both the bit-error rate (BER) and the...
Resource Type:: Masters Thesis

Investigation of metal-insulator-metal (MIM) and nanolaminate barrier MIIM tunnel devices fabricated via atomic layer deposition

Creator:: Alimardani, Nasir
Abstract:: Metal-insulator-metal (MIM) tunnel devices have been proposed for high speed applications such as hot electron transistors, IR detectors, optical rectennas for IR energy harvesting, and backplanes for LCDs. The majority of these applications require highly asymmetric and non-linear current versus voltage (I-V) behavior at low applied voltages and ultra-high frequencies....
Resource Type:: Dissertation
Full Text:: , Adv. Mater. 23(1), 74 (2011). 3 K. Choi, F. Yesilkoy, G. Ryu, S.H. Cho, N. Goldsman, M. Dagenais

A novel method for zinc oxide nanowire sensor fabrication

Creator:: Pelatt, Brian D.
Abstract:: Interest in nanomaterials is motivated partly by their potential for sensor arrays to detect different gases. Nanowires in particular are of interest because their high surface-to-volume ratio promises the possibility of high sensitivity. However, because of their discrete quasi-one-dimensional geometry, electrical integration of nanowires into photolithographically defined devices and circuits...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Al-In-Sn-O thin-film transistors

Conduction processes in metal–insulator–metal diodes with Ta₂O₅ and Nb₂O₅ insulators deposited by atomic layer deposition

Assessment of High Mobility Oxide Thin-Film Transistors

Investigation of ultra-thin In-Ga-Zn-O thin-film transistors

Investigation of bipolar resistive switching in zinc-tin-oxide for resistive random access memory

Cryptanalysis and enhancement of authentication protocols

Investigation of the impact of insulator material on the performance of dissimilar electrode metal-insulator-metal diodes

Enhancing macrocell downlink performance through femtocell user cooperation

Investigation of metal-insulator-metal (MIM) and nanolaminate barrier MIIM tunnel devices fabricated via atomic layer deposition

A novel method for zinc oxide nanowire sensor fabrication

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