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Role of hydrogen in chemical vapor deposition growth of large single-crystal graphene.

• Ivan Vlassiouk, Murari Regmi, +4 authors Sergei Smirnov
• ACS nano
• 2011

We show that graphene chemical vapor deposition growth on copper foil using methane as a carbon source is strongly affected by hydrogen, which appears to serve a dual role: an activator of the… (More)

Graphene Nucleation Density on Copper : Fundamental Role of Background Pressure

• Ivan Vlassiouk, Sergei Smirnov, +9 authors Pasquale F Fulvio
• 2014

In this paper we discuss the effect of background pressure and synthesis temperature on the graphene crystal sizes in chemical vapor deposition (CVD) on copper catalyst. For the first time, we… (More)

Electrical property measurements of CrN codoped TiO 2 epitaxial thin films grown by pulsed laser deposition

• Jaćim Jaćimović, R. Gaál, Arnaud Magrez, L. Forró, Murari Regmi
• 2013

Cooperative island growth of large-area single-crystal graphene on copper using chemical vapor deposition.

• Gyula Eres, Murari Regmi, +4 authors David B Geohegan
• ACS nano
• 2014

In this work we explore the kinetics of single-crystal graphene growth as a function of nucleation density. In addition to the standard methods for suppressing nucleation of graphene by pretreatment… (More)

Chapter 7 Laser Interactions for the Synthesis and In Situ Diagnostics of Nanomaterials

• David B Geohegan, Alex A. Puretzky, +9 authors Matt Chisholm
• 2014

Laser interactions have traditionally been at the center of nanomaterials science, providing highly nonequilibrium growth conditions to enable the synthesis of novel new nanoparticles, nanotubes, and… (More)

Gender differences in self-construal: how generalizable are Western findings?

• David A. Watkins, Christopher Cheng, Elias Mpofu, Sola Olowu, Sunita Singh-Sengupta, Murari Regmi
• The Journal of social psychology
• 2003

The authors used the Twenty Statements Test in 2 studies to investigate gender and country differences in the spontaneous self-descriptions of 811 college students from Hong Kong, India, Nepal,… (More)

Real-time optical diagnostics of graphene growth induced by pulsed chemical vapor deposition.

• Alexander A Puretzky, David B Geohegan, +4 authors Gyula Eres
• Nanoscale
• 2013

The kinetics and mechanisms of graphene growth on Ni films at 720-880 °C have been measured using fast pulses of acetylene and real-time optical diagnostics. In situ UV-Raman spectroscopy was used to… (More)

Neutron imaging detector based on multiple layers of boron-coated straws

• Jeffrey L. Lacy, Murari Regmi, A. Athanasiades, Christopher S. Martin, Gerson J. Vazquez-Flores, Georg Ehlers
• IEEE Nuclear Science Symposium, Medical Imaging…
• 2016

In previous projects funded by the DOE, Proportional Technologies, Inc. developed the basic design of a neutron imaging detector, based on the boron-coated straw technology, aimed to replace 3He… (More)

Large-Area, Low-Cost, High-Efficiency Neutron Detector for Vehicle-Mounted Operation

• Jeffrey L. Lacy, Christopher S. Martin, +5 authors Tom D. Lyons
• IEEE Transactions on Nuclear Science
• 2017

We have developed a large-area, low-cost, high-efficiency neutron detector for vehicle-mounted operation. The detector, which has overall dimensions 12.7 cm <inline-formula> <tex-math… (More)

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