This review focuses on the physics of optical excitation dynamics, band gap engineering
and charge carrier dynamics in metal-halide perovskites and their organic hybrids as well as …

Agri-food safety incidents not only threaten the life and health of consumers but also
seriously hinder the development of the food supply chain. It is generally accepted that the …

Cavity array, with excellent optical capture capability, has received increasing attention for
the surface-enhanced Raman spectroscopy (SERS)-active substrates. Here, we proposed …

Hot spots have been considered as a dominant role in surface enhancement Raman
scattering (SERS). Its generation cannot be separated from the ultra-small nanogaps, which …

The fabrication of nanoarchitectured mesoporous gold films on flexible cellulose nanofiber
(CNF) paper is reported for high-performance surface-enhanced Raman scattering (SERS) …

Environmental deterioration due to anthropogenic activities is a threat to sustainable, clean
and green environment. Accumulation of hazardous chemicals pollutes soil, water and air …

Trace detection of toxic chemicals in foodstuffs is of great concern in recent years. Surface-
enhanced Raman scattering (SERS) has drawn significant attention in the monitoring of food …

We report a three-dimensional (3D) SERS substrate with different numbers of silver
nanoparticle (Ag NP) layers using multilayer graphene oxide (GO) as a spacer. The SERS …

Surface-enhanced Raman spectroscopy (SERS) has become an ultrasensitive technique in
trace molecule detection through its unique vibrational fingerprint. However, development of …

We present a U-bent fiber optic SPR sensor based on the graphene/AgNPs, combined the
virtues of graphene, AgNPs and U-bent fiber. By changing the laser-induced time, we …