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Buried graphene heterostructures for electrostatic doping of low-dimensional materials.
Alexander Gumprich, Julian Liedtke, Sarah Beck, Irina Chirca, Teja Potočnik, Jack Alexander-Webber, Stephan Hofmann, Stefan Tappertzhofen
Apr 13, 2023
The fabrication and characterization of steep slope transistor devices based on low-dimensional materials requires precise electrostatic doping profiles with steep spatial gradients in order to maintain maximum control over the...
Alexander Bearn, 1975
The Rockefeller University
Jan 01, 0001
Alexander G. Bearn. The expression of inherited metabolic disease in cultured cells
Lecture delivered February 20, 1975
Posted with permission
Published by: Academic Press
Dirac-Point Shift by Carrier Injection Barrier in Graphene Field-Effect Transistor Operation at Room Temperature.
Sungsik Lee, Arokia Nathan, Jack Alexander-Webber, Philipp Braeuninger-Weimer, Abhay A Sagade, Haichang Lu, David Hasko, John Robertson, Stephan Hofmann
Dec 14, 2018
A positive shift in the Dirac point in graphene field-effect transistors was observed with Hall-effect measurements coupled with Kelvin-probe measurements at room temperature. This shift can be explained by the asymmetrical...
Giant photoluminescence enhancement in MoSe2 monolayers treated with oleic acid ligands.
Arelo OA Tanoh, Jack Alexander-Webber, Ye Fan, Nicholas Gauriot, James Xiao, Raj Pandya, Zhaojun Li, Stephan Hofmann, Akshay Rao
Aug 19, 2021
The inherently low photoluminescence (PL) yields in the as prepared transition metal dichalcogenide (TMD) monolayers are broadly accepted to be the result of atomic vacancies (i.e., defects) and uncontrolled doping, which give...
Direct age constraints on the magnetism of Jack Hills zircon.
Richard J M Taylor, Steven M Reddy, David W Saxey, William D A Rickard, Fengzai Tang, Cauê S Borlina, Roger R Fu, Benjamin P Weiss, Paul Bagot, Helen M Williams, Richard J Harrison
Feb 09, 2023
A potential record of Earth's magnetic field going back 4.2 billion years (Ga) ago is carried by magnetite inclusions in zircon grains from the Jack Hills. This magnetite may be secondary in nature, however, meaning that the...
Published by: Science advances
Reevaluating the evidence for a Hadean-Eoarchean dynamo.
Cauê S Borlina, Benjamin P Weiss, Eduardo A Lima, Fengzai Tang, Richard J M Taylor, Joshua F Einsle, Richard J Harrison, Roger R Fu, Elizabeth A Bell, Ellen W Alexander, Heather M Kirkpatrick, Matthew M Wielicki, T Mark Harrison, Jahandar Ramezani, Adam C Maloof
May 16, 2020
The time of origin of the geodynamo has important implications for the thermal evolution of the planetary interior and the habitability of early Earth. It has been proposed that detrital zircon grains from Jack Hills, Western...
Published by: Science advances
Meg Webber Selected for Global Learning Initiative Duties
Winthrop University
Jan 01, 0001
The GLI is Winthrop University's Quality Enhancement Plan, a comprehensive initiative that is a requirement of the Southern Association of Colleges and Schools reaffirmation of accreditation processes. As the initiative...
Published by: Winthrop University
Engineering a Complete Record
Alexander Ball
Jul 01, 2009
Engineering firms that make long-lived products are increasingly called upon to sell their products as services. Alexander Ball reports on a project that has been investigating the knowledge and information management issues...
Engineering high charge transfer n-doping of graphene electrodes and its application to organic electronics.
Oxidising and carburising catalyst conditioning for the controlled growth and transfer of large crystal monolayer hexagonal boron nitride
Towards a Graphene-Based Low Intensity Photon Counting Photodetector.
Jamie OD Williams, Jack A Alexander-Webber, Jon S Lapington, Mervyn Roy, Ian B Hutchinson, Abhay A Sagade, Marie-Blandine Martin, Philipp Braeuninger-Weimer, Andrea Cabrero-Vilatela, Ruizhi Wang, Andrea De Luca, Florin Udrea, Stephan Hofmann
Dec 12, 2018
Graphene is a highly promising material in the development of new photodetector technologies, in particular due its tunable optoelectronic properties, high mobilities and fast relaxation times coupled to its atomic thinness and...
Oxidising and carburising catalyst conditioning for the controlled growth and transfer of large crystal monolayer hexagonal boron nitride
Editorial
Alexander Ball
Jun 10, 2015
Alexander Ball, Production Editor, introduces Volume 10, Issue 1 (2015) of the International Journal of Digital Curation.
Engineering the Photoresponse of InAs Nanowires.
Jack A Alexander-Webber, Catherine K Groschner, Abhay A Sagade, Gregory Tainter, M Fernando Gonzalez-Zalba, Riccardo Di Pietro, Jennifer Wong-Leung, H Hoe Tan, Chennupati Jagadish, Stephan Hofmann, Hannah J Joyce
Feb 09, 2018
We report on individual-InAs nanowire optoelectronic devices which can be tailored to exhibit either negative or positive photoconductivity (NPC or PPC). The NPC photoresponse time and magnitude is found to be highly tunable by...
Engineering a Complete Record
Alexander Ball
Jul 01, 2009
Engineering firms that make long-lived products are increasingly called upon to sell their products as services. Alexander Ball reports on a project that has been investigating the knowledge and information management issues...
A Comparison of the Structural Chemistry of Scandium, Yttrium, Lanthanum and Lutetium
Data deposited in the Cambridge Structural Database (CSD) for compounds of scandium, yttrium, lanthanum and lutetium(III) have been analysed to assess the structural similarities of complexes of the different metal ions. 29 sets...
Enhancing Photoluminescence and Mobilities in WS2 Monolayers with Oleic Acid Ligands.
Arelo OA Tanoh, Jack Alexander-Webber, James Xiao, Géraud Delport, Cyan A Williams, Hope Bretscher, Nicolas Gauriot, Jesse Allardice, Raj Pandya, Ye Fan, Zhaojun Li, Silvia Vignolini, Samuel D Stranks, Stephan Hofmann, Akshay Rao
Aug 19, 2019
Many potential applications of monolayer transition metal dichalcogenides (TMDs) require both high photoluminescence (PL) yield and high electrical mobilities. However, the PL yield of as prepared TMD monolayers is low and...
Automated Computer Vision-Enabled Manufacturing of Nanowire Devices.
Teja Potočnik, Peter J Christopher, Ralf Mouthaan, Tom Albrow-Owen, Oliver J Burton, Chennupati Jagadish, Hark Hoe Tan, Timothy D Wilkinson, Stephan Hofmann, Hannah J Joyce, Jack A Alexander-Webber
Nov 23, 2022
We present a high-throughput method for identifying and characterizing individual nanowires and for automatically designing electrode patterns with high alignment accuracy. Central to our method is an optimized machine-readable...
The Ursinus College Investment Management Company Newsletter, Fall 2023
Inside this issue:
At a Glance
Letter from Kaela Frenchman '24 and Olivia DeFusco '24
Letter from Jack Thompson '24
Honoring Dr. Scott Deacle and Investment Team Updates
UCIMCO Investment Performance and Analysis
Endowment...
UCIMCO Endowment portfolio management stock selection Investment performance Ursinus College Business Finance and Financial Management Portfolio and Security Analysis
Published by: Ursinus College
A Comparison of the Structural Chemistry of Scandium, Yttrium, Lanthanum and Lutetium
Data deposited in the Cambridge Structural Database (CSD) for compounds of scandium, yttrium, lanthanum and lutetium(III) have been analysed to assess the structural similarities of complexes of the different metal ions. 29 sets...
High-Throughput Electrical Characterization of Nanomaterials from Room to Cryogenic Temperatures.
Luke W Smith, Jack O Batey, Jack A Alexander-Webber, Ye Fan, Yu-Chiang Hsieh, Shin-Jr Fung, Dimitars Jevtics, Joshua Robertson, Benoit JE Guilhabert, Michael J Strain, Martin D Dawson, Antonio Hurtado, Jonathan P Griffiths, Harvey E Beere, Chennupati Jagadish, Oliver J Burton, Stephan Hofmann, Tse-Ming Chen, David A Ritchie, Michael Kelly, Hannah J Joyce, Charles G Smith
Oct 13, 2020
Rational Passivation of Sulfur Vacancy Defects in Two-Dimensional Transition Metal Dichalcogenides.
Hope Bretscher, Zhaojun Li, James Xiao, Diana Yuan Qiu, Sivan Refaely-Abramson, Jack A Alexander-Webber, Arelo Tanoh, Ye Fan, Géraud Delport, Cyan A Williams, Samuel D Stranks, Stephan Hofmann, Jeffrey B Neaton, Steven G Louie, Akshay Rao
Jun 13, 2021
Structural defects vary the optoelectronic properties of monolayer transition metal dichalcogenides, leading to concerted efforts to control defect type and density via materials growth or postgrowth passivation. Here, we...
Published by: ACS nano
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