Flexible thermoelectrics provide a different solution for developing portable and sustainable flexible power supplies. The discovery of silver sulfide–based ductile semiconductors has driven shift in the potential thermoelectrics, but lack good p-type thermoelectric materials restricted reality fabricating conventional cross-plane π-shaped devices. We report series high-performance based on composition-performance phase diagram AgCu(Se,S,Te) pseudoternary solid solutions, with high...

Abstract Magnetic core–shell Fe 3 O 4 @SiO 2 nanoparticles were synthesized by sol–gel method. Based on the characterization and experimental results, adsorbent was found to have an average particle size of approximately 120 nm, a pore range 2–5 nm superparamagnetic properties. It exhibited electrostatic hydrogen bonding interactions during adsorption methyl orange (MO). The MO magnetic pseudo-second-order kinetics, process is spontaneous endothermic process, which conforms Langmuir isotherm...

Due to the worldwide concerns of environmental protection and sustainable development, lead-free piezoelectric materials are greatly desired for bridging electrical energy mechanical energy. However, their lower conversion coefficient compared conventional lead-containing significantly limits device applications. Herein, we introduce a novel strategy increase strain ferroelectric system via material structure design create polar nano regions (PNRs) point defects in while retaining global...

The effective strategy of indirect linakge for constructing ternary ambipolar phosphine oxide (PO) hosts with the high first triplet energy levels (T(1)) was successfully demonstrated. interplay between chromophore, hole and electron transporting moieties effectively restrained. Both T(1) as 3.0 eV characteristics were perfectly realized, which consequently resulted in highly efficient blue-emitting phosphorescent organic light-emitting diodes low driving voltage stable efficiencies.

Selective hydrogenolysis of C–O bonds in biomass-derived oxygenated molecules is great significance for the conversion biomass to chemicals and fuels, especially inert C–O–C tetrahydrofuran rings. However, lack precise active sites results low activity this reaction. In work, metal–support interfacial structure Ni–La2O3 catalyst was well-controlled by reducing LaNiO3 perovskite at different temperatures. During reduction, exsolution segregation Ni led formation metallic nanoparticles...

Exploring high-temperature superconducting (high-$T_c$) material at ambient pressure holds immense significance for physics, chemistry, and materials science. In this study, we perform a high-throughput screening of strong electron-phonon interactions in X$_2$MH$_6$ compounds (X = Li, Na, Mg, Al, K, Ca, Ga, Rb, Sr, In; M are $3d$, $4d$, $5d$ transition metals). These have cubic structure featuring an MH$_6$ octahedron motif. Our calculations suggest that 26 exhibit dynamic stability...

An experimental study on Schottky-barrier height (SBH) tuning using ion implantation followed by drive-in anneal of As, B, In, and P in preformed NiSi PtSi films is presented. Measured B-implanted Schottky diodes, the effective SBH n-type Si altered to ~1.0 eV. For As- P-implanted p-type can be tuned around 0.9 The process window for most pronounced modification dopant dependent.

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> An experimental study is presented to compare two different schemes used incorporate a high concentration of dopants at the silicide/silicon interface for NiSi and PtSi, i.e., dopant segregation, with purpose lowering Schottky barrier height (SBH) contact systems. Specifically, interfacial introduced either through silicidation-induced segregation (SIDS) or by silicide as diffusion source (SADS)....

Increased resonance: The selective tuning of the optoelectronic properties organic semiconductors is possible by enantiotropic resonance variation. Using forms N(+)=P-O(-) in a series arylamine-phosphine oxide hybrids afforded low-voltage-driven phosphorescent OLEDs with outstanding performances.

Current static-state explorations of organic semiconductors for optimal material properties and device performance are hindered by limited insights into the dynamically changed molecular states charge transport energy transfer processes upon operation. Here, we propose a simple yet successful strategy, resonance variation-based dynamic adaptation (RVDA), to realize optimized self-adaptive in donor-resonance-acceptor molecules engineering variation tuning semiconductors. Organic...

Despite a large number of publications describing biosensors based on electrochemical impedance spectroscopy (EIS), little attention has been paid to the stability and reproducibility issues sensor interfaces. In this work, faradaic EIS analyses aptamer/mercaptohexanol (MCH) self-assembled monolayer (SAM)-functionalized gold surfaces in ferri- ferrocyanide solution were systematically evaluated prior after aptamer-probe DNA hybridization. It is shown that data exhibited significant drift,...

By virtue of the excellent plasticity and tunable transport properties, Ag2S-based materials demonstrate an intriguing prospect for flexible or hetero-shaped thermoelectric applications. Among them, Ag2S1-xTex exhibits rich interesting variations in crystal structure, mechanical properties. However, Te alloying obviously introduces extremely large order-disorder distributions cations anions, leading to quite complicated structures Detailed composition-structure-performance correlation still...

Flexible memristors hold great promise for flexible electronics applications but are still lacking of good electrical performance together with mechanical flexibility. Herein, we demonstrate a full-inorganic nanoscale memristor by using free-standing ductile α-Ag

Flexible memristor-based neural network hardware is capable of implementing parallel computation within the memory units, thus holding great promise for fast and energy-efficient neuromorphic computing in flexible electronics. However, current memristor (FM) mostly operated with a filamentary mechanism, which demands large energy consumption both setting computing. Herein, we report an Ag2S-based FM working distinct interface resistance-switching (RS) mechanism. In direct contrast to...

Nanopore technology has been extensively investigated for analysis of biomolecules, and a success story in this field concerns DNA sequencing using nanopore chip featuring an array hundreds biological nanopores (BioNs). Solid-state (SSNs) have explored to attain longer lifetime higher integration density than what BioNs can offer, but SSNs are generally considered generate noise whose origin remains be confirmed. Here, we systematically study low-frequency (including thermal flicker)...

Rectification of ionic current, a frequently observed phenomenon with asymmetric nanopores varying in geometry and/or surface charge, has been utilized for studies microfluidic circuits, nanopore sensors, and energy conversion devices. However, the physics behind rectification deserves further analysis, involved processes need renewed organization; however, origin is known, numerous simulations based on Poisson–Nernst–Planck formalism provide details observation. Here, we present an...

Matrix Metalloproteinase-7 (MMP-7) is a proteolytic enzyme overexpressed in different pathological conditions, including cancer, infection, and cardiovascular diseases, relevant diagnostic biomarker potential drug target. Here we demonstrate rapid selective detection of MMP-7 with limit-of-detection 6 pg/mL dynamic range from 1 × 10−2 to 103 ng/mL using peptide decorated gold nanoparticle/carbon nanotube electrochemical sensor. The sensor could be operated diluted human serum synthetic...