An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Chad R. Snyder, Dean M. DeLongchamp, Ryan C. Nieuwendaal, Andrew A. Herzing
Several techniques for characterizing semiconducting polymer order on different length scales are presented, including (1) differential scanning calorimetry (DSC), (2) solid state nuclear magnetic resonance spectroscopy (NMR), (3) transmission electron
The filament-based RRAM has demonstrated superior scalability, endurance, low power operation, retention, and operating speed. A challenge navigating trade-offs between high density, low switching power, and stability can be addressed by capitalizing on
The integration of graphene into nanoscale electrical and mechanical devices is often limited by the ability to grow monolayer graphene on extremely thin copper films (
James Marro, Taghi Darroudi, Kathleen C. Richardson, Yaw S. Obeng, Chukwudi A. Okoro
In this work we studied the impact of pulse electroplating parameters on the cross-sectional and surface microstructures of blanket copper films using electron backscattering diffraction and x-ray diffraction. The films evaluated were highly (111) textured
Analytic expressions are presented for the dark current-voltage relation J(V ) of a pn+ junction with charged columnar grain boundaries with high defect density. These expression apply to non-depleted grains with sufficiently high bulk hole mobilities. The
Thenappan Chidambaram, Dmitry Veksler, S Madisetti, Michael Yakimov, Vadim Tokranov, Serge Oktyabrskiy
In this work, we use gated Hall method for direct measurement of free carrier density and electron mobility in inversion InGaAs MOSFET channels. At room temperature, the highest Hall mobility of 1800 cm2/Vs is observed at electron density in the channel
Joseph A. Hagmann, Xiqiao Wang, Pradeep N. Namboodiri, Richard M. Silver, Curt A. Richter
An improved capacity to control matter at the atomic scale is central to the advancement of nanotechnology. The complementary metal-oxide-semiconductor (CMOS) devices that power existing computing technology, which continue to scale down in size as
Kin (Charles) Cheung, Jason Campbell, Dmitry Veksler
Charge-trapping/detrapping are common occurrences that affect MOSFET performance and reliability. To understand a broad range of MOSFET phenomena, we need to think through the dynamic of charge-trapping/detrapping. The standard approach to treat oxide
Brian J. Simonds, Ashish Bhatia, Helene J. Meadows, Sudhajit Misra, Masato Kurihara, Thomas Schuler, Vicente Reis-Adonis, Michael A. Scarpulla, Philip J. Dale
Alexana Roshko, Matthew D. Brubaker, Paul T. Blanchard, Kristine A. Bertness, Todd E. Harvey, Igor Levin, R.H. Geiss
A comparison of two electron microscopy techniques used to determine the polarity of GaN nanowires is presented. The techniques are convergent beam electron diffraction (CBED) in TEM mode and annular bright field (ABF) imaging in aberration corrected STEM
Quentin Smets, Anne S. Verhulst, Salim El Kazzi, David J. Gundlach, Curt A. Richter, Anda Mocuta, Nadine Collaert, Aaron Thean, Marc Heyns
The effective bandgap for heterojunction band-to-band tunneling (Eg,eff) is a crucial design parameter for heterojunction TFET. However, there is significant uncertainty on Eg,eff, especially for In0.53Ga0.47As/GaAs0.5Sb0.5. This makes TFET performance