A family of 2D transition metal carbides and nitrides known as MXenes has received increasing attention since the discovery Ti 3 C 2 in 2011. To date, about 30 different with well‐defined structures properties have been synthesized, many more are theoretically predicted to exist. Due numerous assets including excellent mechanical properties, metallic conductivity, unique in‐plane anisotropic structure, tunable band gap, so on, rapidly positioned themselves at forefront materials world found...

Abstract Designing lightweight nanostructured aerogels for high‐performance electromagnetic interference (EMI) shielding is crucial yet challenging. Ultrathin cellulose nanofibrils (CNFs) are employed assisting in building ultralow‐density, robust, and highly flexible transition metal carbides nitrides (MXenes) with oriented biomimetic cell walls. A significant influence of the angles between walls incident EM wave electric field direction on EMI performance revealed, providing an intriguing...

Abstract Printed functional conductive inks have triggered scalable production of smart electronics such as energy‐storage devices, antennas, wearable electronics, etc. Of particular interest are highly conductive‐additive‐free devoid costly postdeposition treatments to eliminate sacrificial components. Due the high filler concentration required, formulation waste‐free has proven quite challenging. Here, additive‐free, 2D titanium carbide MXene aqueous with appropriate rheological properties...

Abstract Rechargeable lithium‐sulfur (Li‐S) batteries have attracted significant research attention due to their high capacity and energy density. However, commercial applications are still hindered by challenges such as the shuttle effect of soluble lithium sulfide species, insulating nature sulfur, fast decay electrodes. Various efforts devoted address these problems through questing more conductive hosts with abundant polysulfide chemisorption sites, well modifying separators...

Transparent conductive electrodes (TCEs) with a high figure of merit (FOMe, defined as the ratio transmittance to sheet resistance) are crucial for transparent electronic devices, such touch screens, micro-supercapacitors, and antennas. Two-dimensional (2D) titanium carbide (Ti3C2Tx), known MXene, possesses metallic conductivity hydrophilic surface, suggesting dispersion stability MXenes in aqueous media allowing fabrication MXene-based TCEs by solution processing. However, achieving FOMe...

Over the recent years, several Re(I) organometallic compounds have been shown to be toxic various cancer cell lines. However, these lacked sufficient selectivity towards tissues used as novel chemotherapeutic agents. In this study, we probe potential of two known N,N-bis(quinolinoyl) tricarbonyl complex derivatives, namely [N,N-bis(quinolin-2-ylmethyl)amino]-4-butane-1-amine (Re-NH₂) and [N,N-bis(quinolin-2-ylmethyl)amino]-5-valeric acid (Re-COOH), photodynamic therapy (PDT)...

Poor cycling stability in lithium-sulfur (Li-S) batteries necessitates advanced electrode/electrolyte design and innovative interlayer architectures. Heterogeneous catalysis has emerged as a promising approach, leveraging the adsorption catalytic performance on lithium polysulfides (LiPSs) to inhibit LiPSs shuttling improve redox kinetics. In this study, we report an ultrathin laminar SnO

Abstract This paper reports β ‐lactoglobulin amyloid protein fibrils directed synthesis of Titanium Dioxide (TiO 2 ) hybrid nanowires. Protein act as templates to generate closely packed TiO nanoparticles on the surface using titanium (IV) bis (ammonium lactato) dihydroxide (TiBALDH) precursor, resulting in –coated These also exhibit complexation with a luminescent water‐soluble semiconductive polythiophene (P3HT). nanowires behave electron acceptor while, P3HT donor. In this way,...

Carbon-based hole transport layer-free mesoscopic perovskite solar cells can be manufactured at industrially relevant speeds on large areas using slot die coating. The show efficiencies comparable to those by screen printing.

Drop on demand inkjet printing of monolithic mesoscopic carbon-based perovskite solar cells is demonstrated, highlighting the potential customizable for aesthetic indoor and outdoor photovoltaic deployment.

Abstract Large‐area flexible transparent conductive electrodes (TCEs) featuring excellent optoelectronic properties (low sheet resistance, R s , at high transparency, T) are vital for integration in wearable electronics (i.e., antennas, sensors, supercapacitors, etc.). Solution processing printing and coating) of inks yields highly uniform TCEs low cost, holding great promise commercially manufacturing electronics. However, to formulate such as well realize continuous films the absence...

Abstract Energy‐harvesting technologies offer a sustainable, maintenance‐free alternative to conventional energy‐storage solutions in distributed low‐power applications. Flexible thermoelectric generators (TEGs) can generate electric power from temperature gradient, even on complex surfaces. Organic materials are ideal candidates for flexible TEGs due their good solution‐processability, natural abundance, low weight, and flexibility. Electronic properties of organic have steadily progressed,...

We have used scanning force microscopy and transmission electron to study the microphase separation of P(S-b-2VP) block copolymers on chemically structured substrates. Gold was patterned by microcontact printing form regions self-assembled alkyl monolayers terminated −CH3 or −OH. The differences in surface interfacial energies between coexisting phases boundary surfaces strongly influence resulting domain structure. find that excess material accumulates only layers formed above...

A method to exchange the counterion of cyanine dyes Δ-TRISPHAT(-) and PF6(-) is presented. The influence these counterions on photophysical electrochemical properties dye in solution discussed, tendencies solid packing are highlighted by X-ray crystal structures. compounds were applied semitransparent bilayer organic solar cells together with C60, a power conversion efficiency 2.2% was achieved while maintaining high transparency level visible region 66%.

Thin films of fullerene C 60 and molybdenum oxide (MoO 3 ) are ubiquitously used as the electron acceptor material hole extraction interfacial layer for fabrication organic photovoltaic (OPV) cells. It is well known that light exposure induces color changes in MoO (photochromism) formation intermolecular bonds between molecules (photopolymerization). The influence these photoinduced reactions on long‐term stability OPV cells, however, has not previously been studied detail. Here, a study...

Abstract MXene inks are promising alternatives for conventional conductive in printing electronics. However, the formulation of is challenging due to physicochemical properties few solvents which MXenes can be dispersed. Furthermore, dispersions form high‐viscosity gels at low concentrations, making their ink even more difficult. Here, a novel co‐solvent‐based approach reported dispersing polar organic that have excellent as carrier solvent but not suitable MXenes. Water used agent and...

Current-voltage (J-V ) curves of photovoltaic devices can reveal important microscopic phenomena when parameterization is properly related to physical processes. Here, we identify a pronounced effect thermal annealing on the organic-cathode metal interface and show that this origin kink often observed in J-V close open circuit. We propose isolated nanoclusters form upon cathode evaporation lead defect states change electric field distribution device. express scenario with modified equivalent...

A SEM picture of the microspheroids (tilted), scheme depicting vesicle templated sol–gel process and squared normalized electric field intensity distribution inside microspheroid calculated by finite-difference time-domain simulation.

Abstract Two‐dimensional (2D) transition metal carbides, and/or nitrides, so‐called MXenes, have triggered intensive research interests in applications ranging from electrochemical energy storage to electronics devices. Producing these functional devices by printing necessitates match the rheological properties of MXene dispersions requirements various solution processing techniques. In particular, for additive manufacturing such as extrusion‐printing, inks with high solid fraction are...

Diketopyrrolopyrrole (DPP)-based organic semiconductors EH-DPP-TFP and EH-DPP-TFPV with branched ethyl-hexyl solubilizing alkyl chains end capped trifluoromethyl phenyl groups were designed synthesized via Suzuki coupling. These compounds show intense absorptions up to 700 nm, thin film-forming characteristics that sensitively depend on the solvent coating conditions. Both materials have been used as electron donors in bulk heterojunction bilayer photovoltaic (OPV) devices fullerenes...

Processing 2D materials into printable or coatable inks for the fabrication of functional devices has proven to be quite difficult. Additives are often used in large concentrations address processing challenges, but they drastically degrade electronic properties materials. To remove additives a high-temperature post-deposition treatment can used, this complicates process and limits choice (i.e., no heat-sensitive materials). In work, by exploiting unique materials, universal strategy...

Abstract Two‐dimensional MXenes with their outstanding physical and chemical properties have been extensively used in numerous fields such as electrochemical energy storage, catalysis, sensing. In these applications, high active surface area facilitated diffusion of ions/atoms/molecules are crucial. While features can be offered by porous films structures, fabrication at ambient conditions, especially scalable methods printing coating has proven to quite challenging. Here, we developed MXene...