Ultrahigh-performance photodetectors based on low-dimensional CsAgBiBr/CdS heterojunction.

Lead-free double perovskite CsAgBiBr has garnered increasing attention in photoelectric applications owing to its good stability and excellent photoelectric properties. However, the poor carrier transport in CsAgBiBr thin films constraints their further application in photodetection. To overcome this issue, we have developed an innovative low-dimensional CsAgBiBr/CdS heterojunction photodetector with substantially improved performance.

Origin of Interfacial Orbital Reconstruction in Perovskite Superlattices.

The competition between on-site electronic correlation and local crystal field stands out as a captivating topic in research. However, its physical ramifications often get overshadowed by influences of strong periodic potential and orbital hybridization. The present study reveals this competition may become more pronounced or even dominant in two-dimensional systems, driven by the combined effects of dimensional confinement and orbital anisotropy.

Enhanced sensitivity of Au@BiWO flower-like materials to formaldehyde.

BiWO flower-like materials (FMs) were prepared by a hydrothermal method, followed by an in-situ reduction method to prepare Au@BiWO FMs. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy were employed to characterize the samples. It was discovered that the calculated O content of Au@BiWO FMs is 25.

Inherently Interpretable Physics-Informed Neural Network for Battery Modeling and Prognosis.

Lithium-ion batteries are widely used in modern society. Accurate modeling and prognosis are fundamental to achieving reliable operation of lithium-ion batteries. Accurately predicting the end-of-discharge (EOD) is critical for operations and decision-making when they are deployed to critical missions.

Constructing high-quality 1D nano/microwire hybrid structure for high-performance photodetectors based on CdSe nanobelt/perovskite microwire.

All-inorganic perovskite CsPbBr is considered as a promising photoelectric material due to its high environmental stability and excellent photoelectric properties. Constructing low-dimension hybrid structures by combining CsPbBr with semiconductor materials have recently attracted particular attention because they may bring new functionalities or generate synergistic effects in optoelectronic devices. Herein, the high-quality 1D CdSe nanobelt (NB)/CsPbBr microwire (MW) photodetectors are designed first time, which exhibit excellent performance as integrating / ratio of 5.

Enhanced Gas Sensitivity of Au-Decorated Flowery WSe Nanostructures.

With the continuous improvement in material life, people are paying more and more attention to air quality; therefore, it is critical to design efficient and stable gas sensor devices. In this work, a flowery WSe nanostructure and its nanocomposite (Au@WSe) decorated with Au nanoparticles were fabricated by the hydrothermal method. The performance of a resistive sensor with flowery WSe and Au@WSe sensors was evaluated by detecting volatile organic compounds such as ethanol, isoamylol, n-butyl alcohol, isopropanol, isobutanol and n-propanol.

Ultrasensitive flower-like TiO/Ag substrate for SERS detection of pigments and melamine.

TiO flower like nanomaterials (FLNMs) are fabricated a hydrothermal method and Ag nanoparticles (NPs) are deposited electron beam evaporation. Several biological pigments (CV, R6G and RhB) are selected as target molecules to investigate their surface enhanced Raman scattering (SERS) property. The results demonstrate ultrasensitivity and high reproducibility.

CdS Micrometer Hollow Spheres for Detecting Alcohols Except Methanol with Strong Anti-interference Ability.

Cadmium sulfide micrometer hollow spheres (CdS MHs) were fabricated by a hydrothermal method. The performance of the CdS MHs sensor was evaluated by detecting volatile organic compounds such as methanol, ethanol, 1-propanol, isopropanol, -butanol, -butyl alcohol, -amyl alcohol, acetone, and xylene. It was found that the optimum working temperature of the CdS MHs sensor is 190 °C.

Ultra-High Response Detection of Alcohols Based on CdS/MoS Composite.

Hybrid CdS/MoS with branch and leaf shaped structures are successfully synthesized by hydrothermal method. It is applied to detect volatile organic compounds, a basic source of indoor air pollution with deleterious effects on the human health. The sensor based on CdS/MoS displays an outstanding response to alcohols among numerous gases.

Recyclable Ag-Deposited TiO SERS Substrate for Ultrasensitive Malachite Green Detection.

An ultrasensitive Ag-deposited TiO flower-like nanomaterial (FLNM) surface-enhanced Raman scattering (SERS)-active substrate is synthesized via a hydrothermal method, and Ag nanoparticles (NPs) are deposited through electron beam evaporation. Malachite green (MG), which is widely used in aquaculture, is employed to assess the surface-enhanced Raman scattering (SERS) properties of TiO/Ag FLNMs. They exhibit ultrasensitivity (limit of detection (LOD) of MG reaches 4.

Fractal analysis of rat dermal tissue in the different injury states.

Scar formation and chronic ulcers can develop following a skin injury. They are the result of the over- or underproduction of collagen. It is very important to evaluate the quality and quantity of the collagen that is produced during wound healing, especially with respect to its structure, as these factors are very important to a complicated outcome.

Termination dependence and electric field modification of band alignment in a CNT/CHNHPbI heterojunction.

Carbon nanotube (CNT) and perovskite composite materials possessing the combined advantages of CNTs and perovskites have drawn substantial attention due to their promising applications in photovoltaic and optoelectronic devices. Understanding the band alignment of heterojunctions is crucial for further performance improvement. Here, we systematically investigated the interfacial electronic structure and optical absorption of a semiconducting CNT/CH3NH3PbI3 heterojunction via density functional theory calculations.