Polyaniline (PANI)-decorated {001} facets of Bi2O2CO3 nanosheets were synthesized by a low-temperature chemical method. We demonstrate that the strong interfacial interactions between and PANI could promote in situ formation oxygen vacancy at interface confirmed both density functional theory calculations electron spin resonance experiments, which is due to high characteristic facets. In addition, such interaction also leads 0.38 eV positive shifting valence band Bi2O2CO3. Importantly,...

Herein we report an investigation of a CH3NH3PbI3 planar solar cell, showing significant power conversion efficiency (PCE) improvement from 4.88% to 6.13% by introducing homogeneous and uniform NiO blocking interlayer fabricated with the reactive magnetron sputtering method. The sputtered layer exhibits enhanced crystallization, high transmittance, surface morphology as well preferred in-plane orientation (200) plane. PCE sputtered-NiO-based perovskite p–i–n cell can be further promoted...

Abstract Atomic layer deposition (ALD) is a thin-film fabrication technique that has great potential in nanofabrication. Based on its self-limiting surface reactions, ALD excellent conformality, sub-nanometer thickness control, and good process compatibility. These merits promote the industrial research applications of various fields. This article provides an introduction to highlights semiconductors, pan-semiconductors, environment energy, other The key nodes integrated circuits are...

Single-walled carbon nanotubes can help charge extraction in mesoscopic CH₃NH₃PbI₃-based perovskite solar cells using TiO₂/Al₂O₃/carbon as a scaffold.

We report on a new counter electrode for dye-sensitized solar cells (DSCs), which is prepared using layer-by-layer assembly of negatively charged graphene oxide and positively poly (diallyldimethylammonium chloride) followed by an electrochemical reduction procedure. The DSC devises the heteroleptic Ru complex C106TBA as sensitizer this reach power conversion efficiencies 9.5% 7.6% in conjunction with low volatility solvent free ionic liquid electrolytes, respectively. exhibits good...

A novel perovskite solar cell-TiO₂@BiVO₄ photoelectrochemical system for direct water splitting shows an overall solar-to-hydrogen efficiency of 1.24%.

Tailoring catalysts with atomic level control over active sites and composite structures is of great importance for advanced catalysis. This review focuses on the recent development area selective layer deposition (ALD) methods in design synthesis. By adjusting optimizing ALD processes, several catalytic are developed, including core shell structures, discontinuous overcoating embedded structures. The detailed synthesis strategies these designed reviewed, where related approaches highlighted...

This work reports on incorporation of spectrally tuned gold/silica (Au/SiO 2 ) core/shell nanospheres and nanorods into the inverted perovskite solar cells (PVSC). The band gap hybrid lead halide iodide (CH 3 NH PbI can be gradually increased by replacing with increasing amounts bromide, which not only offer an appreciate radiation window for surface plasmon resonance effect utilization, but also potentially result in a large open circuit voltage. introduction localized plasmons CH 2.85 Br...

The chemical approaches enabling selective atomic layer deposition (ALD) are gaining growing interest. ALD has unlocked attractive avenues for the development of novel nanostructures and found its versatile applications in emerging fields beyond semiconductor industry. In this article, recent developments inherently methods summarized. Based on precursors' preferential adsorptions dangling bonds, interstitials, grain boundaries, etc., single atom deposition, well aligned nanowire growth,...

All-inorganic perovskite quantum dots suffer from poor stability in a humid and heat environment. In this article, CsPbBr3 (CsPbBr3 QDs) are stabilized by coating nanoscale alumina on QDs-silica luminescent sphere QDs-SLS) via atomic layer deposition (ALD). Utilizing the intrinsic reactivity differences toward precursors, surface defect sites of QDs selectively passivated. The inorganic layers can effectively reduce ion migration crystal deformation QDs. situ quartz microbalance measurements...

Abstract In the past decades, Moore’s law drives semiconductor industry to continuously shrink critical size of transistors down 7 nm. As further downscaling smaller sizes, reaches its limitation, and increase density on chip decelerates. Up now, extreme ultraviolet lithography has been used in some key steps, it is facing alignment precision high costs for high-volume manufacturing. Meanwhile, introduction new materials 3D complex structures brings serious challenges top-down methods. Thus,...

Abstract Vapor deposition is a promising technology for the mass production of perovskite solar cells. However, efficiencies cells and modules based on vapor‐deposited perovskites are significantly lower than those fabricated using solution method. Emerging evidence suggests that large defects generated during vapor owing to specific top‐down crystallization mechanism. Herein, hybrid method combined with solvent‐assisted recrystallization fabricating high‐quality large‐area films low defect...

Flexible perovskite light-emitting diodes (PeLEDs) constitute an emerging technology opening new opportunities in the fields of lighting and display for portable wearable electronics. Poly(3,4-ethylenedioxythiophene):poly(stryrenesulfonate) (PEDOT:PSS) as one most promising flexible electrode materials has attracted extensive attention. However, patterning conductivity issues PEDOT:PSS electrodes should be addressed primarily. Here, a photopolymerizable additive is proposed to endow with...

Abstract We report an atomic scale controllable synthesis of Pd/Pt core shell nanoparticles (NPs) via area-selective layer deposition (ALD) on a modified surface. The method involves utilizing octadecyltrichlorosilane (ODTS) self-assembled monolayers (SAMs) to modify the Take usage pinholes SAMs as active sites for initial nucleation and subsequent selective second metal layer. Since new can be effectively blocked by surface ODTS in stage, we demonstrate successful growth Pt/Pd NPs with...

Abstract An area‐selective atomic layer deposition (AS‐ALD) method is described to construct oxide nanotraps anchor Pt nanoparticles (NPs) on Al 2 O 3 supports. The as‐synthesized catalysts have exhibited outstanding room‐temperature CO oxidation activity, with a significantly lowered apparent activation energy (ca. 22.17 kJ mol −1 ) that half of pure catalyst the same loading. Furthermore, structure shows excellent sintering resistance high catalytic activity retention up 600 °C...

Recently, p-type dye-sensitized solar cells (p-DSSCs) have attracted increasing attention. The widely used carboxylic acid groups for TiO2 based sensitizers may not be the optimal choice p-DSSCs. Herein new donor-π-acceptor organic with pyridine ring as anchoring group are designed and synthesized detailed investigation demonstrates that an effect on negative shift of valence band edge NiO induced by surface protonation, which lowers hole-injection process device photovoltage, while works...

A facet‐selective atomic layer deposition method is developed to fabricate oxide nanofence structure stabilize Pt nanoparticles. CeO x selectively deposited on nanoparticles' (111) facets and naturally exposes (100) facets. The facet selectivity realized through different binding energies of Ce precursor fragments chemisorbed (100), which supported by in situ mass gain experiment corroborated density functional theory simulations. Such not only has exposed active for carbon monoxide...

The effects of the cobalt particle size in range 6.5–26.3 nm on catalyst structural transformation and methane selectivity evolution Fischer–Tropsch synthesis (FTS) have been investigated. In situ X-ray diffraction experiments revealed that was maintained as CoO under a reaction environment when initial Co3O4 particles SiO2 were below 8.4 nm. large metallic Co can keep stable phase state, indicating almost unchanged catalytic activity selectivity. contrast, small or show gradual increase...

Efficient CH₃NH₃PbI₂Br perovskite solar cells have been prepared based on the TiO₂/Al₂O₃/carbon architecture, yielding an appreciable power conversion efficiency of 11.03%.