Metal organic chemical vapor deposition is carefully optimized for the growth of pure CuCrO₂delafossite coatings on glass substrates.

In this research, we highlight an innovative combinatorial approach to explore the correlation between elemental composition of SrTiO 3 thin films and their photoelectrochemical characteristics for water splitting.

Abstract Electrocatalysis is essential for facilitating reactions that convert electrical energy into chemical or vice versa. This particularly relevant in the context of renewable sources, where efficient hydrogen production through water splitting critical storage and utilization. review examines replacement platinum group metal (PGM) electrocatalysts with transition (TM) thin films synthesized via vapor deposition (CVD) atomic layer (ALD). TM like nickel, cobalt, iron have emerged as...

Gallium-doped zinc oxide (GZO) films were fabricated using RF magnetron sputtering and atomic layer deposition (ALD). The latter ones demonstrate higher electrical conductivities (up to 2700 S cm–1) enhanced charge mobilities (18 cm2 V–1 s–1). morphological analysis reveals differences mostly due the very different nature of processes. film deposited via ALD shows an increased transmittance in visible range a small one infrared that leads figure merit 0.009 Ω–1 (10 times than for...

We report the synthesis by reactive magnetron sputtering and structural characterization of highly (111)-oriented thin films δ–Bi2O3. This phase is obtained at a substrate temperature 150–200 °C in narrow window O2/Ar ratio gas (18%–20%). Transmission electron microscopy x-ray diffraction reveal polycrystalline columnar structure with (111) texture. The are stable from room up to 250 vacuum 350 ambient air.

We present a grazing incidence fast atom diffraction (GIFAD) study of monolayer graphene on 6H-SiC(0001). This system shows Moiré-like 13 × superlattice above the reconstructed carbon buffer layer. The averaging property GIFAD results in electronic and geometric corrugations that are well decoupled; honeycomb corrugation is only observed with incident beam parallel to zigzag direction while arising from revealed along armchair direction. Full-quantum calculations patterns show very high...

We report on the experimental observation and theoretical study of bound state resonances in fast atom diffraction at surfaces. In our studies, $^{4}\mathrm{He}$ beam has been scattered from a high-quality LiF(001) surface very small grazing incidence angles. this regime, reciprocal lattice vector exchange with allows transient trapping 0.3--0.5 keV projectiles into quasistationary states by attractive atom-surface potential well which is only 10 meV deep. Analysis linewidths calculated...

Off-stoichiometric copper chromium oxide delafossite received lately a great interest due to its high p-type electrical conductivity and adequate optical transmittance in the visible range. However, for suitable integration active devices such as p-n junctions, transistors or optoelectronic devices, electronic properties must be efficiently tailored. Here, post-deposition thermal treatment is proven an approach finely controlling of this former degenerate semiconducting material. The...

The control of nanometer-scale metallic silver particles morphology and their functional properties on a large scale represent key factor for applications such as plasmonics, sensors, catalysts, or antimicrobial surfaces. present work investigates in detail the growth Ag nanoparticles deposited by plasma-enhanced atomic layer deposition (PE-ALD), from triethylphosphine(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate)silver(I) [Ag(fod)(PEt3)—C16H25AgF7O2P] precursor H2 reducing...

Abstract Strontium (Sr) diffusion in magnetron sputtered gadolinia‐doped ceria (CGO) thin films is investigated. For this purpose, a model system consisting of screen printed (La,Sr)(Co,Fe)O 3− δ (LSCF) layer, and CGO yttria‐stabilized zirconia (YSZ) prepared to simulate solid oxide fuel cell. This setup allows observation Sr by observing SrZrO 3 formation using X‐ray diffraction while annealing. Subsequent electron microscopy confirms the results. approach presents simple method for...

Conductive ultra-thin silver films are commonly fabricated by physical vapor deposition methods such as evaporation or sputtering. The line-of-sight geometry of these techniques impedes the conformal growth on substrates with complex morphology. In order to overcome this issue, volume technologies chemical atomic layer usually preferred. However, using generally non-electrically conductive for thicknesses below 20-50 nm due island formation. Here, we demonstrate a novel approach producing...

While silver nanowires (Ag NWs) have been demonstrated as a highly efficient transparent conducting material, they suffer from strong light scattering, which is quantified by large haze factor (HF) in the optical spectrum. Here we investigate influence of dielectric environment on scattering Ag NWs comparing experimental measurements and simulations. In air, two peaks HF spectra are observed experimentally at wavelength

Boron carbides fabricated via plasma enhanced chemical vapour deposition from different isomeric source compounds with the same C2B10H12 closo-icosahedral structure result in materials very direct (optical) band gaps. This provides compelling evidence for existence of multiple polytypes C2B10 boron carbide and is consistent electron diffraction results.

Abstract Off-stoichiometric copper chromium delafossites demonstrate the highest values of electric conductivity among p-type transparent conducting oxides. Morphological and structural changes in Cu 0.66 Cr 1.33 O 2 upon annealing processes are investigated. Chained vacancies were previously suggested as source high levels doping this material. High resolution Helium Ion Microscopy, Secondary Mass Spectrometry Transmission Electron Microscopy reveal a significant rearrangement after thermal...

The most promising materials to replace indium tin oxide (ITO) in transparent electrodes could be silver nanowires. One of the challenges is, however, large-scale deposition This study provides a solution deposit nanowires on large substrate area by spray deposition. new concept is heated glass vertical position with flat beam instead basic conic beam. After optimization parameters such as cleaning, droplets size, pressure, and distance, surface 100 cm2 was fully covered very good...

For energetic atomic beams grazingly incident at the surface along low index directions, fast motion parallel to and slow perpendicular lead quantum diffraction pattern in scattered beam. In this experimental theoretical joint study we show that when beam is misaligned with respect an axial channel, characteristic deformation of reflects overall deflection from specular direction. The maximum for azimuthal misalignment angles close rainbow angle how effect can be explained detailed balance...

Monolayer epitaxial graphene grown on 6H-SiC(0001) was recently investigated by grazing-incidence fast-atom diffraction and analyzed with an ab initio electronic density calculation exact atomic methods. With these results as a reference, the hard-corrugated-wall model (HCW) is used complementary analytic approach to link binary potentials observed corrugation. The main result that HCW reproduces macroscopic corrugation of moir\'e pattern quantitative level, suggesting soft-wall corrections...

Off-stoichiometric Cu-Cr-O delafossite thin films with different thicknesses were grown by metal organic chemical vapor deposition on substrates coefficients of thermal expansion. Seebeck thermoelectric coefficient and resistivity measurements performed the range 300-850 K. A qualitative change in temperature-dependence is observed at temperature corresponding to process, where transition from tensile compressive strain takes place. Arrhenius plots reveal slopes these two ranges. The fact...

Abstract n contemporary optoelectronic devices, the transparent conductive oxides commonly demonstrate
n-type conduction characteristics, with indium-doped tin oxide emerging as a prominent example.
However, in applications involving fully invisible electronics that necessitate p-type ox-
ides, there exists demand for quintessential material possessing properties akin to its n-type
counterpart. CuCrO 2 , delafossite semiconductor based on copper, presently...

Transparent and electrical conducting p-type off-stoichiometric copper–chromium oxide thin films were used to build p-Cu0.66Cr1.33O2/n-ZnO heterojunctions. The junctions fabricated in a novel simple five step process including metal organic chemical vapour deposition, atomic layer wet etching, optical lithography. One last of thermal annealing, with varying temperatures 650 700 °C, is added order tune the properties delafossite consequently features p–n junctions. This work was developed...

A versatile tool for electrochemical fabrication of heteronanojunctions with nanocontacts made a few atoms and nanogaps molecular spacing is presented. By integrating microfluidic circuitry in lab-on-chip approach, we keep control the environment vicinity nanojunction add new versatility exchanging controlling junction's medium. Nanocontacts various materials by successive local controlled depositions are demonstrated, electrical properties revealing sizes reaching only. Investigations on...