Results 11 to 20 of about 4,629,689 (191)

Optical Characterization of Graphene and Highly Oriented Pyrolytic Graphite [PDF]

open access: yesActa Physica Polonica A, 2009
We present a symmetry analysis of allowed infrared and Raman modes in graphene and highly oriented pyrolytic graphite. Surface structure for highly oriented pyrolytic graphite is examined using atomic force microscopy. As experimental tools, we used infrared spectroscopic ellipsometry in order to investigate the pseudodielectric function of highly ...
R. Kostić   +5 more
openaire   +2 more sources

Cryptand-Functionalized Highly Oriented Pyrolytic Graphite Electrodes [PDF]

open access: yesSustainability, 2021
Reproducible materials that have detection properties towards a certain molecule are very important for applications in the fabrication of devices. Among all the substrates that are used, highly oriented pyrolytic graphite allows to clearly image a monolayer.
Marcos A. Bento   +4 more
openaire   +2 more sources

Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)

open access: yesJournal of Nuclear Materials, 2008
Microcracks with varied length and width are observed in nuclear grade graphite and highly oriented pyrolytic graphite (HOPG) by transmission electron microscopy. In situ observations show that these cracks tend to close up on heating the sample. The crystal dimensional change from in situ electron-irradiation also causes the closure of the cracks ...
Wen, Keyun   +2 more
openaire   +4 more sources

Magnetothermal conductivity of highly oriented pyrolytic graphite in the quantum limit [PDF]

open access: yesPhysical Review B, 2003
4 Figures, to be published in Physical Review B (2003)
Ocaña, R.   +4 more
openaire   +3 more sources

Deposition of DNA Nanostructures on Highly Oriented Pyrolytic Graphite

open access: yesAdvanced Materials Interfaces
The integration of the addressability of DNA nanostructures and the electronic sensitivity of sp2 carbon‐based materials presents a promising avenue for the development of powerful sensitive biodevices for detecting biological signals and substances with
Yanjing Gao   +4 more
doaj   +2 more sources

Effect of Stress on Irradiation Responses of Highly Oriented Pyrolytic Graphite. [PDF]

open access: yesMaterials (Basel), 2022
The effect of stress on irradiation responses of highly oriented pyrolytic graphite (HOPG) was studied by combing molecular dynamics (MD) simulation, proton irradiation, and Raman characterization. MD simulations of carbon knock-on at energies < 60 eV were used to obtain average threshold displacement energies (E¯d) as a function of strain ranging ...
Hu Z   +5 more
europepmc   +3 more sources

Deuteration of C<sub>60</sub> on a highly oriented pyrolytic graphite surface. [PDF]

open access: yesProc Int Astron Union, 2019
AbstractReactions on carbonaceous surfaces play an important role in processes such as H2 formation in the interstellar medium. We have investigated the adsorption of C2 molecules on a highly oriented pyrolytic graphite (HOPG) surface and then exposed them to a beam of deuterium atoms in order to investigate the formation of deuterated fullerenes ...
Pantazidis G   +6 more
europepmc   +5 more sources

Formation of Nanocones on Highly Oriented Pyrolytic Graphite by Oxygen Plasma. [PDF]

open access: yesMaterials (Basel), 2014
Improvement in hemocompatibility of highly oriented pyrolytic graphite (HOPG) by formation of nanostructured surface by oxygen plasma treatment is reported. We have showed that by appropriate fine tuning of plasma and discharge parameters we are able to create nanostructured surface which is densely covered with nanocones.
Vesel A   +4 more
europepmc   +4 more sources

A New View of Electrochemistry at Highly Oriented Pyrolytic Graphite [PDF]

open access: yesJournal of the American Chemical Society, 2012
Major new insights on electrochemical processes at graphite electrodes are reported, following extensive investigations of two of the most studied redox couples, Fe(CN)(6)(4-/3-) and Ru(NH(3))(6)(3+/2+). Experiments have been carried out on five different grades of highly oriented pyrolytic graphite (HOPG) that vary in step-edge height and surface ...
Patel, Anisha N.   +6 more
openaire   +2 more sources

Effects of Wet Chemical Oxidation on Surface Functionalization and Morphology of Highly Oriented Pyrolytic Graphite [PDF]

open access: yes, 2020
The knowledge of chemical functionalization for area selective deposition (ASD) is crucial for designing the next generation heterogeneous catalysis. Surface functionalization by oxidation was studied on the surface of highly oriented pyrolytic graphite (
Mikhail, Trought   +11 more
core   +4 more sources

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