Post-thermal annealing and <italic>in situ</italic> doping are adopted to tune the physical properties of PLD-NiO films.

Controlling the interface quality and surface microstructure of cuprous oxide (Cu2O) p–n homojunction is crucial to obtaining high-efficiency film solar cells. However, low-cost synthetic techniques for preparing such structures with a high-quality designed still remain challenge because doping difficulty n-type Cu2O, especially aqueous precursors. Herein, we report an electrochemical deposition approach growing Cu2O by selecting proper electrolytes different pH levels. The growth...

Fully indium-free flexible Ag nanowires/ZnO:F composite transparent conductive electrodes with high haze can improve the perovskite solar cell efficiency.

Copper (I) iodide (CuI) films are grown on glass substrates with a direct vacuum thermal evaporation method, and the effect of substrate temperature their photoluminescence transparent conductive properties is discussed. The X-ray diffraction (XRD) measurement identifies polycrystalline CuI film has γ-phase (111) preferential growth direction. When optimised at 120 °C, average transmittance about 90% in wavelength range 410–1500 nm. electrical measured by Hall show lowest resistivity 1.0 ×...

Three kinds of heterostructures composed n-type zinc oxide (ZnO) film or nanowires nanotubes covered with a p-type cuprous (Cu2O) thin respectively were fabricated simple and low-cost electrochemical deposition method. Structural, optical, electrical studies identified the formation three proposed Cu2O/ZnO p–n heterojunctions. Photovoltaic properties measurements demonstrated that film/nanowire based solar cell exhibited an obviously enhanced performance in comparison corresponding planar...

We demonstrate in this paper a novel finding of submicron-lubricant exemplified by crystallized magnetite (Fe3O4) submicrometer spheres. Optimized tribological performance lubricant particles occurs when the are sized and spherical. The tribology is thus verified to be size shape dependent. Owing unique heating quenching process involved pulsed laser irradiation, Fe3O4 spheres acquired through phase transformation reshaping. formation regular deionized water was investigated choosing...

Photoactive bismuth vanadate (BiVO4) thin films were deposited by reactive co-magnetron sputtering from metallic Bi and V targets. The effects of the V-to-Bi ratio, molybdenum doping post-annealing on crystallographic photoelectrochemical (PEC) properties BiVO4 investigated. Phase-pure monoclinic films, which are more photoactive than tetragonal phase, obtained under slightly vanadium-rich conditions. After annealing Mo-doped photocurrent increased 2.6 times compared to undoped films....

Submicrometer scaled spheres are realized by a laser-induced reshaping process. An irregular shaped particle absorbs the laser-energy and turns into spherical liquid droplet dispersed in deionized water. Subsequently, is "frozen" fast cooling of surrounding water, giving rise to formation submicrometer scale spheres. This versatile, simple, low-cost, high-throughput technique prepare with multiple structural controlling capabilities. These show excellent friction coefficient-reduction (>50%)...

During the growth of CH3NH3PbI3−xClx (MAPbI3−xClx) perovskite films by two-step inter-diffusion method, presence a trace amount oxygen gas is critical to their physical properties and photovoltaic performance. As concentration increases, poor film morphologies incomplete surface coverage are observed. Moreover, XRD, Raman scattering, photoluminescence measurements, we find that MAPbI3−xClx grains become more distorted electron-hole recombination rate dramatically increases. Higher triggers...

ZnO thin films prepared by pulsed laser deposition at low temperature are utilized as the electron transport layer in CH 3 NH PbI 3− x Cl ‐based perovskite solar cells with a planar heterojunction structure. Oxygen pressure greatly influences transparent and conductive properties of films, which extremely important for cells. The under different oxygen pressures studied ultraviolet‐visible spectrophotometer Hall effect measurement system. Through controlling pressure, high conductivity grown...

Single-crystal CdTe nanorods with diameters of 50–100 nm were synthesized under a surfactant-assisted hydrothermal condition. The experimental results indicated that temporal dependence the morphologies nanocrystallites changed from nanoparticles to smooth surface nanorods. crystal structure, morphology and optical properties products investigated by x-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution (HRTEM), scanning (SEM) fluorescence spectrophotometer....

This article reports the target and liquid media influences on microstructures optical properties of ZnO nanoparticles synthesized using pulsed laser ablation ( PLA ) method. Zinc were ablated with in pure water surfactant solution, respectively. The obtained characterized X‐ray diffraction spectrometer, transmission electron microscopy, photoelectron spectroscopy, absorption spectrum, photoluminescence spectrum. solution spherical shapes, but different properties. zinc showed rod shapes...

Phosphorus-doped ZnO (ZnO:P) nanowires were grown by the high-pressure pulsed laser deposition process (HP-PLD), where phosphorus pentoxide is used as dopant source. The morphology, composition, and microstructural changes of after doping investigated with scanning electron microscopy, X-ray diffraction spectrum, energy-dispersive transmission microscope, Raman scattering spectrum. Optical fingerprints ZnO:P like neutral acceptor-bound exciton emission (3.357 eV, A0X), free-electron to...

This work reports on the stimulated optical emission characteristics of ZnO nanobelts that were grown with a simple carbothermal evaporation method without using any catalyst or dopant. Such grew along a-axis enclosed by {0001} and {01−10} base planes through vapor-solid mechanism. Room temperature temperature-dependent photoluminescence results indicated such high qualityand better than those from dopant-assisted thermal oxidation methods. Amplified spontaneous was observed low-growth...

In this paper, ZnO submicrospheres are prepared by a simple laser‐stimulated surface tension energy release strategy, which is very convenient method for growing inorganic oxide spheres with high melting points. The detailed morphology evolution of particles investigated changing the laser fluence. formation spherical due to particle spherizing and/or coalescence as result area minimum and when heated irradiation. can effectively reduce friction coefficients used lubricating oil additives,...

The paper reported a simple but effective gold catalyst-tailored chemical vapour deposition (CVD) method to grow ZnO nanowires and nanobelts with different photoluminescence (PL) behaviours. along the c-axis were synthesized via catalyst-assisted CVD through conventional vapour–liquid–solid (VLS) mechanism. But, grew a-axis enclosed {010} {0001} base planes without using any catalyst or dopant vapour–solid (VS) proved be of optical quality, which was related their growth process. Besides...

Our study described a synthesis of thiol-capped high-luminescent (quantum yield as high 80%) CdTe quantum dots (QDs) with facile method in aqueous phase. The fluorescence the as-prepared QDs could be tuned from 500 nm to 650 nm. More importantly, after beta-actin conjugation, were successfully conjugated live cells observe their configurations, demonstrating potentially broad application biolabels. crystal structure, morphology and optical property products investigated by X-ray diffraction...