A5084818401- Graphene research and applications
- Silicone and Siloxane Chemistry
- Carbon Nanotubes in Composites
- Conducting polymers and applications
- Fiber-reinforced polymer composites
- Organic Electronics and Photovoltaics
- Graphene and Nanomaterials Applications
- Quantum Dots Synthesis And Properties
- Material Properties and Applications
- TiO2 Photocatalysis and Solar Cells
- Diamond and Carbon-based Materials Research
- Electron and X-Ray Spectroscopy Techniques
- Advanced Electron Microscopy Techniques and Applications
- Advanced Photocatalysis Techniques
- Advanced NMR Techniques and Applications
- Aerogels and thermal insulation
- Nanopore and Nanochannel Transport Studies
- Polymer crystallization and properties
- Space Satellite Systems and Control
- Transition Metal Oxide Nanomaterials
- Inorganic Fluorides and Related Compounds
- Spacecraft Design and Technology
- Advanced X-ray Imaging Techniques
- Carbon and Quantum Dots Applications
- Chalcogenide Semiconductor Thin Films
University of Surrey
2014-2025
Guildford Hospital
2015-2019
<italic>In situ</italic> reduction of aqueous graphene oxide is undertaken to challenge the prevailing assignation molecular transitions in photoluminescence spectra.
Future space travel needs ultra-lightweight and robust structural materials that can withstand extreme conditions with multiple entry points to orbit ensure mission reliability. This is unattainable current inorganic materials. Ultra-highly stable carbon fiber reinforced polymers (CFRPs) have shown susceptibility environmental instabilities electrostatic discharge, thereby limiting the full lightweight potential of CFRP. A more improved CFRP needed in order improve engineering further. Here,...
Graphene oxide (GO) is becoming increasingly popular for organic electronic applications. We present large active area (0.64 cm2), solution processable, poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl]:[6,6]-Phenyl C71 butyric acid methyl ester (PCDTBT:PC70BM) photovoltaic (OPV) solar cells, incorporating GO hole transport layers (HTL). The power conversion efficiency (PCE) of ∼5% the highest reported OPV using this...
Alumina nanoparticles enhance perovskite surface electronic homogeneity, bulk electrical conduction, and device stability when used as a modifier on hydrophobic self-assembled monolayers, outperforming widely polyelectrolytes.
With the realization of larger and more complex space installations, an increase in surface area exposed to atomic oxygen (AO) ultraviolet (UV) effects is expected, making structural integrity structures essential for future development. In a low Earth orbit (LEO), AO UV degradation can have devastating consequences polymer composite satellites installations. Composite materials such as carbon fiber-reinforced (CFRP) or polyetherimide polystyrene are widely used satellite construction...
Thermal control is essential to guarantee the optimal performance of most advanced electronic devices or systems. In space, orbital satellites face issues high thermal gradients, heating, and different loads mediated by differential illumination from Sun. Todaýs state-of-the-art systems provide protection; however, they are bulky restrict mass power budgets for payloads. Here, we develop a lightweight optical superlattice nanobarrier structure smart solution. The consists moisture outgassing...
We report on the synthesis of two and three dimensional carbonaceous sponges produced directly from graphene oxide (GO) into which functionalized iron nanoparticles can be introduced to render it magnetic. This simple, low cost procedure, wherein an polymeric resin precursor is carbon framework, results in carbon-based materials with specific surface areas order 93 66 m(2) g(-1), compared approx. 4 g(-1) for graphite, decorated ferromagnetic giving coercivity fields postulated 216 98 Oe,...
We introduce a combined process for the reduction of graphene oxide (GO) <italic>via</italic> vitamin C (ascorbic acid) and thermal annealing.
We report a ZnO interfacial layer based on an environmentally friendly aqueous precursor for organic photovoltaics. Inverted PCDTBT devices this show power conversion efficiencies of 6.8–7%. Unencapsulated stored in air display prolonged lifetimes extending over 200 hours with less than 20% drop efficiency compared to the standard architecture.
The endeavors to develop manufacturing methods that can enhance polymer and composite structures in spacecraft have led much research innovation over many decades. However, the thermal stability, intrinsic material stress, anisotropic substrate properties pose significant challenges inhibit use of previously proposed solutions under extreme space environment. Here, we overcome these issues by developing a custom-designed, plasma-enhanced cross-linked poly(p-xylylene):diamond-like carbon...
Graphene-based carbon sponges can be used in different applications a large number of fields including microelectronics, energy harvesting and storage, antimicrobial activity environmental remediation. The functionality scope their broadened considerably by the introduction metallic nanoparticles into matrix during preparation or post-synthesis. Here, we report on use X-ray micro-computed tomography (CT) as method imaging graphene after uptake metal (silver iron) nanoparticles. technique to...
Hierarchical carbon nanostructures have been produced and examined for their use in liquid filtration experiments. The are based on nanotube growth graphite oxide sponge deposition the surface of commercially available fibre fabrics. hierarchical nanomaterial construction fabric is made possible due to chemical vapour deposited nanotubes which act as anchoring sites solution nanomaterial. nanomaterials show a high capacity Rhodamine B filtration, with fibre—carbon nanotube—graphite showing...
Carbon nanotubes (CNTs) can be used in many different applications. Field emission (FE) measurements were together with Raman spectroscopy to show a correlation between the microstructure and field parameters. However, characterization does not suffer from fluorescence noise present spectroscopy. In this study, is characterize vertically aligned CNT forest samples based on their D/G band intensity ratio (ID/IG), FE properties such as threshold electric field, enhancement coefficient, anode...
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to "Complete Atomic Oxygen and UV Protection for Polymer Composite Materials in Low Earth Orbit"Christopher T. G. SmithChristopher SmithMore by Christopher Smithhttp://orcid.org/0000-0003-1264-1350, Michal DelkowskiMichal DelkowskiMore Delkowskihttp://orcid.org/0000-0003-1168-2548, José V. AnguitaJosé AnguitaMore Anguita, David C. CoxDavid CoxMore Cox, Catherine HaasCatherine...