Transparent, Flexible, and Low-Operating-Voltage Resistive Switching Memory Based on AlO/IZO Multilayer.

In this study, a different number of indium zinc oxide (IZO) interlayers are fabricated into AlO-based transparent resistive switching memory on a transparent indium tin oxide (ITO)/glass substrate at room temperature. AlO/IZO multilayer transparent memory has a transmittance of at least 65% in the wavelength range of 400-900 nm. In addition, the AlO/IZO multilayer transparent memory can achieve an electroforming voltage that is 35.

High thermoelectric figure of merit of porous Si nanowires from 300 to 700 K.

Thermoelectrics operating at high temperature can cost-effectively convert waste heat and compete with other zero-carbon technologies. Among different high-temperature thermoelectrics materials, silicon nanowires possess the combined attributes of cost effectiveness and mature manufacturing infrastructures. Despite significant breakthroughs in silicon nanowires based thermoelectrics for waste heat conversion, the figure of merit (ZT) or operating temperature has remained low.

Single-step manufacturing of hierarchical dielectric metalens in the visible.

Metalenses have shown a number of promising functionalities that are comparable with conventional refractive lenses. However, current metalenses are still far from commercialization due to the formidable fabrication costs. Here, we demonstrate a low-cost dielectric metalens that works in the visible spectrum.

The optimization of surface morphology of Au nanoparticles on WO nanoflakes for plasmonic photoanode.

Among many candidates for photoanode materials of photoelectrochemical (PEC) cell, nanostructured tungsten trioxide (WO) is regarded as one of the most promising materials due to its superior electrical properties and adequate bandgap (∼2.8 eV) and band edge position. WO nanoflakes (WO NFs), which have merits on its high surface area and crystallinity, have been actively studied for this manner but solar-to-hydrogen efficiency of WO NFs based photoanode is still not sufficient both in light absorption and charge separation.

Enhancing light conversion efficiency of YAG:Ce phosphor substrate using nanoimprinted functional structures.

A phosphor substrate converts a moderate amount of blue light to green light to produce white light. In this study, we have successfully demonstrated the enhancement of the light extraction efficiency of YAG:Ce phosphor substrate using a simple imprint process. Spin-on-glass materials were used to fabricate a pattern on the surface of a phosphor substrate, and nano- and micro-scale patterns were formed to test the performance according to the size of pattern.

Customizable 3D-printed architecture with ZnO-based hierarchical structures for enhanced photocatalytic performance.

ZnO-based hierarchical structures including nanoparticles (NPs), nanorods (NRs) and nanoflowers (NFs) on a 3D-printed backbone were effectively fabricated via the combination of the fused deposition modelling (FDM) 3D-printing technique and hydrothermal reaction. The photocatalytic performance of the ZnO-based hierarchical structures on the 3D-backbone was verified via the degradation of the organic pollutant methylene blue, which was monitored by UV-vis spectroscopy. The new photocatalytic architectures used in this investigation give an effective approach and wide applicability to overcome the limitation of photocatalysts such as secondary removal photocatalyst processes.

Spontaneous Registration of Sub-10 nm Features Based on Subzero Celsius Spin-Casting of Self-Assembling Building Blocks Directed by Chemically Encoded Surfaces.

For low-cost and facile fabrication of innovative nanoscale devices with outstanding functionality and performance, it is critical to develop more practical patterning solutions that are applicable to a wide range of materials and feature sizes while minimizing detrimental effects by processing conditions. In this study, we report that area-selective sub-10 nm pattern formation can be realized by temperature-controlled spin-casting of block copolymers (BCPs) combined with submicron-scale-patterned chemical surfaces. Compared to conventional room-temperature spin-casting, the low temperature ( e.

Metal-Organic Framework-Templated PdO-CoO Nanocubes Functionalized by SWCNTs: Improved NO Reaction Kinetics on Flexible Heating Film.

Detection and control of air quality are major concerns in recent years for environmental monitoring and healthcare. In this work, we developed an integrated sensor architecture comprised of nanostructured composite sensing layers and a flexible heating substrate for portable and real-time detection of nitrogen dioxide (NO). As sensing layers, PdO-infiltrated CoO hollow nanocubes (PdO-CoO HNCs) were prepared by calcination of Pd-embedded Co-based metal-organic framework polyhedron particles.