High-yield production of few-layer graphene flakes from graphite is important for the scalable synthesis and industrial application graphene. However, high-yield exfoliation to form sheets without using any oxidation process or super-strong acid challenging. Here we demonstrate a solution route inspired by lithium rechargeable battery (>70%) into highly conductive (average thickness <5 layers). A negative electrode can be electrochemically charged expanded in an electrolyte Li salts organic...

Surface engineering of substrates offers the possibility controlling physiological functions cells at molecular level. Fluorinated graphene promotes differentiation MSCs towards neuronal lineages. Cell alignment using printed polydimethylsiloxane channel arrays on fluorinated further enhances neuro-induction even in absence chemical inducers.

Abstract Alternating graphene (G) and titania (Ti 0.91 O 2 ) multilayered nanosheets are fabricated using layer‐by‐layer electrostatic deposition followed by UV irradiation. Successful assemblies of oxide (GO) in sequence with polyethylenimine as a linker is confirmed UV–vis absorption X‐ray diffraction. Photocatalytic reduction GO into G can be achieved upon Ultrafast photocatalytic electron transfer between the demonstrated femtosecond transient spectroscopy. Efficient exciton dissociation...

Highly sensitive, multicomponent broadband photodetector devices are made from PbSe/graphene/TiO2. TiO2 and PbSe nanoparticles act as light harvesting photoactive materials the UV to IR regions of electromagnetic spectrum, while graphene acts a charge collector for both photogenerated holes electrons under an applied electric field. Detailed facts importance specialist readers published ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They available...

TiO2- graphene photoconducting films can be easily prepared by inkjet printing from a precursor solution of oxide and titanium (IV) bis(ammonium lactate) dihydroxide. Photoconductor devices fabricated these exhibit wide-band photoconductivity, high photodetectivity photoconductive gain, faster photoresponse compared to TiO2-only photodetectors. Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset....

The dual role of graphene (or reduced oxide) as atomic template and structural scaffold in the nucleation assembly organic nanostructures is demonstrated. π−π stacking interactions between aromatic molecules affords synergistic binding interactions, with host guest assuming interchangeable roles scaffold. Beginning seeding wires on template, outgrown turn act one-dimensional scaffolds where sheets coat around to form a unique graphene−organic hybrid structure. Using this π-assembly approach,...

Silver nanoparticle ink was prepared using a simple method. It can be used to fabricate highly conductive films on glass and flexible plastic substrates for printable electronics at mild temperatures. Its application cathode material polymer solar cell has been demonstrated efficiency of 2.25% obtained.

We report a facile and general method for the preparation of alkylamine capped metal (Au Ag) nanoparticle "ink" with high solubility. Using these "inks", we have demonstrated their applications large scale fabrication highly efficient surface enhanced Raman scattering (SERS) substrates by solution processing method. These SERS can detect analytes down to few nM. The flexible plastic also been demonstrated. annealing temperature dependent conductivity films indicated transition above which...

A water soluble conjugated thiophene polymer, sodium salt of poly[2-(3-thienyl)ethoxy-4-butylsulfonate] (TPP), and graphene oxide (GO) composite film (GO-TPP) device was prepared. Transient photoconductivity measurements were carried out on the GO-TPP using 150 ns laser pulses 527 nm wavelength. Highly efficient photocurrent generation observed from film. The relationships photoconductivity, decay time electron times with incident light intensity investigated. photoconductive gain determined...

The power conversion efficiency (PCE) of regioregular poly(3-hexylthiophene) (P3HT) and {6,6}-phenyl C61-butyric acid methylester (PCBM)-based polymer solar cells was increased using an ionic liquid-functionalized carbon nanoparticles (ILCNs) thin film-modified cathode. PCE P3HT:PCBM based-polymer with a conventional aluminum (Al)-only cathode by 20%–30% when the identical devices were made ILCNs-modified Al cathode, but its 10% lower than that LiF/Al measured under AM1.5G illumination 100...

Abstract Hybrids of organic semiconductors and graphene can generate a whole new class materials with enhanced properties. A simple solution‐phase route to synthesize hybrid material made nanowires oxide (GO) sheets is demonstrated by sonicating tetracene molecules GO together in diluted fuming nitric acid. The self‐assembled tetracene‐derived wires become encapsulated during the reaction produce an interconnected, one‐dimensional/two‐dimensional lamellar film. Memory devices fabricated...

In this study, we have developed a method to prepare highly stable and conducting graphene-based ink coat different types of fabrics, both woven non-woven, measured the change in resistivity as function stress cyclic strain. The study shows promising results towards application conductive directly fabric for wearable sensors.

Surfaces with good biocompatibility and tissue-specific inductive capabilities are highly desirable in various tissue engineering cell therapeutic applications. On page 4285, K. P. Loh, C. T. Lim, co-workers show that mesenchymal stem cells (MSCs) can be controllably patterned on fluorinated graphene, triggering alignment-induced neuronal differentiation. Their results point to a large-scale rapid strategy align MSCs the ability induce lineage absence of chemical inducer.

A solution-processible approach to fabricating hybrid TiO2-graphene photoconducting matrices that are printable and spin-castable is reported on p. 5265 by Kian Ping Loh co-workers. The technique produces extended heterojunctions of TiO2 graphene, permitting short collection paths for electrons. Such a solution-based affords chemical tunability easy film formation, holds considerable innovation potential carbon-based optoelectronic devices.