We report annealing-free compact TiO_x layer by atomic deposition for high efficiency flexible perovskite solar cells, and maintained 95% of the initial PCE after 1000 bending cycles with 10 mm radius.

Significant efficiency improvements are reported in mesoscopic perovskite solar cells based on the development of a low‐temperature solution‐processed ZnO nanorod (NR) array exhibiting higher NR aspect ratio, enhanced electron density, and substantially reduced work function than conventional NRs. These features synergistically result hysteresis‐free, scan‐independent, stabilized devices with an 16.1%. Electron‐rich, nitrogen‐doped (N:ZnO) NR‐based transporting materials (ETMs) mobility...

A novel core–shell nanostructured WO₃is investigated in detail and shown to work successfully as an electron transporting material hybrid perovskite solar cells. thin TiO₂shell reduces charge recombination while highly textured single-crystal WO₃nanostructures promote fast transport leading efficiency above 11%.

MgO ultrathin nanolayers are able to efficiently retard charge recombination in perovskite solar cells.

In this paper, ZnO and Al-doped films were deposited using the electrospraying method studied for first time as photoanodes efficient perovskite solar cells. Effects of substrate temperature, deposition time, applied voltage, substrate-to-nozzle distance flow rate (droplet size) on morphology with help FE-SEM images. The major factors such droplet size spray, temperature at control film morphology. Indeed, these determine density film, its smoothness solution over substrate. was controlled...

To date, a single layer of TiO2 or ZnO has been the most successful implementations any electron transport (ETL) in solution-processed perovskite solar cells. In quest to improve ETL, we explore new nanostructured double-layer film for mesoscopic perovskite-based thin photovoltaics. This approach yields maximum power conversion efficiency 10.35%, which attribute morphology oxide and faster transport. The implementation low-temperature hydrothermally processed as ETL cells highlights...

A 3D hyperbranched TiO2 electron transporting material is demonstrated, which exhibits superior carrier transport and lifetime, as well excellent infiltration, leading to highly efficient mesostructured hybrid solar cells, such lead-halide perovskites (15.5%) dye-sensitized cells (11.2%). As a service our authors readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited or...

To achieve highly efficient mesoscopic perovskite solar cells (PSCs), the structure and properties of an electron transport layer (ETL) or material (ETM) have been shown to be supreme importance. Particularly, core–shell heterostructured ETM architecture has recognized as a successful electrode design, because its large internal surface area, superior light-harvesting efficiency ability fast charge transport. Here we report fabrication hysteresis-free, 15.3% PSC using vertically aligned ZnO...

The chemical synthesis of medium (8-11 membered) and large sized (≥12 cyclic systems is often challenging. introduction transannular strain loss degrees freedom in forming macrocycles result poor reaction kinetics thermodynamics (i.e., thermodynamically disfavored at equilibrium). To address these challenges, we herein report a strategy for the medium-to-large rings, which leverages strain-release metal templating through palladium-mediated C-C cleavage/cross-coupling. By means DOSY NMR...

Adopting the conservation of resource theory (COR) and socially embedded model thriving, this study examined relationships among ambidextrous leadership, workplace innovative work behaviors. Specifically, we investigated both direct role leadership in predicting behaviors as well indirect through mediating process thriving. Our results revealed that sparks employees. Moreover, relationship between was mediated by employee's Based on these findings, theoretical practical implications were discussed.

A double light-scattering-layer boron-doped ZnO (DL-BZO) film based dye-sensitized solar cell (DSSC) is fabricated with a high energy conversion efficiency of 7.2%. The over layer made well dispersed sub-micrometer-sized (BZO) sphere arrays (SSA-BZO) to facilitate the fastest movement electrons towards electrodes and also function as light scattering centers. under-layer, consisting nanoporous BZO nanoparticulate (NP-BZO) film, increases dye adsorption reduces injected recombination. DL-BZO...

We have prepared and combined ZnO nanoparticles (ZnO-NPs) with different graphene oxide (GO) contents (10%, 20% 30%) via microwave processing. The procedure provided well-dispersed ZnO-NPs between onto the rGO layers (GZCs). annealing temperature affected UV-Vis absorption, PL emission, defect-states of ZnO, EPR signals, photo-electrochemical response charge transfer properties. HRTEM microscopy images GZCs showed interpenetrating structures clearly visible vacancy defects. results indicated...

Upright-standing nanoporous nanosheets of iodine-doped ZnO (ZnO:I) nanocrsytallites were grown hydrothermally at low temperature and studied as dye-sensitized solar-cell electrodes. The highest overall energy-conversion efficiency ~6.6% was achieved with the film consisted ZnO:I nanocrystallites. This significantly improved than 3.2% for films only including nanosized crystallites, higher 2.4% undoped nanosheet film. proven to be positive in causing light scattering a broad wavelength region...

The realization of arrays high-aspect-ratio nitrogen-doped ZnO (NZO) nanorod is critical to the development high-quality nanostructure-based optoelectronic and electronic devices. In this study, we used a solution-based method grow vertically aligned NZO nanorods on seed layer covered fluorine-doped tin oxide substrates. We investigated whether diameters aspect ratios were affected by addition polyethylenimine (PEI) precursor solution as well variations in growth temperature concentration...

A double-layer film composed of an upper-layer indium-doped ZnO (IZO) nanosheets and a lower-layer IZO nanoparticles structure (designated as DL-NS,s/NP,s:IZO) has been successfully synthesized by simple two step electrospray method studied the dye-sensitized solar-cell (DSSCs) electrodes with aim developing cost-effective alternative fabrication improving performance ZnO-based DSSCs. The XRD patterns demonstrated that films exhibited hexagonal wurtzite preferential orientation along (0 0 2)...

The associative properties of methoxy (CH3O-) ended E58B11 and hydroxyl (-OH) E56B19 oxyethylene-oxybuty- lene diblock copolymers in aqueous solution at different temperature are reported this paper. For both copolymers, E represents an oxyethylene (-[CH2CH2O]-) unit B oxybutylene (-[CH(C2H5)CH2O]-) while the subscripts denote number average block length. Surface tension measurements were used to find out surface excess concentrations (Γm), area per molecule (αs1 ) air/water interface Gibbs...

A novel electrosprayed bilayer film composed of an over-layer (L2) aluminium-doped ZnO (AZO) nanoflakes (NF-AZO) and a under-layer (L1) AZO nanocrystallites structure (NC-AZO) named BL:NF/NC-AZO is studied as excellent field-emitter. The XRD pattern demonstrated that the doped has preferential growth along c-axis with hexagonal wurtzite (0 0 2) peak shifted toward larger angle side after doping. lowest turn-on field ∼2.8 V μm−1, highest emission current density 1.95 mA cm−2 obtained for...

E. Akgün, K. Mahmood and C. A. Mathis, J. Chem. Soc., Commun., 1994, 761 DOI: 10.1039/C39940000761

Abstract This manuscript reports the physicochemical behaviour of antimicrobial cationic surfactant benzalkonium chloride (BAC) as well its interaction with anionic sodium dodecyl sulfate in term mixed micelle. Surface activity pure BAC was studied by measuring surface parameters i. e. pressure (Π), excess concentration (Γ), area per molecule and standard Gibbs free energy adsorption (ΔG ads ). The electrical conductivity measured to calculate thermodynamic like micellization, ΔG m ,...