Carbon nanostructures, nanolayers, and their composites

N Slepičková Kasálková, P Slepička, V Švorčík - Nanomaterials, 2021 - mdpi.com
The versatility of the arrangement of C atoms with the formation of different allotropes and
phases has led to the discovery of several new structures with unique properties. Carbon …

Multifunctional carbon-based nanostructures (CBNs) for advanced biomedical applications–a perspective and review

NN Joshi, J Narayan, R Narayan - Materials Advances, 2024 - pubs.rsc.org
Carbon-based nanostructures (CBNs) have attracted immense attention from biomedical
researchers due to their unique combination of extraordinary mechanical, thermal, electrical …

Q-Carbon as a Corrosion-Resistant Coating

S Karmakar, M Sultana, A Haque - ACS Applied Materials & …, 2023 - ACS Publications
A newly discovered quenched form of carbon, widely known as Q-carbon, thin films are
synthesized by the direct conversion of the amorphous carbon layer using the nanosecond …

Synthesis of multifunctional microdiamonds on stainless steel substrates by chemical vapor deposition

P Joshi, A Haque, S Gupta, RJ Narayan, J Narayan - Carbon, 2021 - Elsevier
We report on the synthesis of multifunctional microdiamonds by chemical vapor deposition
(CVD) on 304 and 316 austenitic stainless steel (SS) substrates. The increase in wettability …

Formation of Q-carbon by adjusting sp3 content in diamond-like carbon films and laser energy density of pulsed laser annealing

H Yoshinaka, S Inubushi, T Wakita, T Yokoya… - Carbon, 2020 - Elsevier
In this study, we prepared Q-carbon by adjusting the sp 3 content in diamond-like carbon
(DLC) films and the laser energy density of pulsed laser annealing (PLA). The amorphous …

Enhanced nucleation and large-scale growth of CVD diamond via surface-modification of silicon-incorporated diamond-like carbon thin films

PR Riley, P Joshi, J Narayan, RJ Narayan - Diamond and Related …, 2021 - Elsevier
Herein we report a method to tailor the surface of silicon-incorporated diamond-like carbon
(Si-DLC) thin films to enhance the diamond nucleation density and growth. In this technique …

Role of Q-carbon in nucleation and formation of continuous diamond film

J Narayan, A Bhaumik, S Gupta, P Joshi, P Riley… - Carbon, 2021 - Elsevier
Formation of continuous and adherent diamond films on practical substrates presents a
formidable challenge due to lack of diamond nucleation sites needed for diamond growth …

Formation of Q-carbon with wafer scale integration

PR Riley, P Joshi, N Khosla, RJ Narayan, J Narayan - Carbon, 2022 - Elsevier
We describe the formation of highly uniform Quenched-carbon (Q-carbon) layers by plasma-
enhanced chemical vapor deposition (PECVD) followed by low-energy Ar+ ion …

Fabrication of Q-carbon nanostructures, diamond and their composites with wafer-scale integration

N Khosla, J Narayan - Crystals, 2022 - mdpi.com
We report the formation of Q-carbon nanolayers, Q-carbon nanoballs, nanodiamonds,
microdiamonds, and their composites by controlling laser and substrate variables. The …

Liquid phase regrowth of< 110> nanodiamond film by UV laser annealing of PTFE to generate dense CVD microdiamond film

P Joshi, S Gupta, PR Riley, RJ Narayan… - Diamond and Related …, 2021 - Elsevier
Herein we report the conversion of polytetrafluoroethylene (PTFE) into< 110>
nanodiamonds via a melting route using pulsed laser annealing (PLA). The converted …