The impact of dendrite morphology on the optical properties of sunflower mimic plasmonic metasurfaces

Abstract

Dendritic nanostructures are commonly observed in nanomaterials and thin films synthesized using electrochemical methods. The dendritic morphology has a unique fractal structure consisting of several closely spaced tips and gaps....

Snowflake-like Cu-BDC-NH2/Cu58S32 Binary Nanohybrid for H2 Evolution and O2 Reduction

“…Some notable nonstoichiometric Cu 2– x S phases include chalcocite (Cu 2.0–1.96 S), djurleite (Cu 1.96 S–Cu 1.93 S), roxbyite (Cu 1.81 S or Cu 58 S 32 ), digenite (Cu 1.8 S or Cu 9 S 5 ), and anilite (Cu 1.74 S or Cu 7 S 4 ) that display p-type semiconducting properties with a high h + density. The roxbyite (Cu 58 S 32 ) phase is a structurally stable semiconductor that shows distinct optical and electronic properties, high carrier density, and energy storage features with promising application potential in photocatalytic reduction reactions. , In recent years, the roxbyite (Cu 1.81 S) phase with controlled morphology including platelet, nanorod, triangular, and hexagonal plate, and nanodisk shape has been prepared and studied for optoelectronic and catalytic applications. ,− However, the construction of microscopically ordered morphology with dimensions in the wavelength range of the visible energy photons is advantageous in terms of improved light harvesting through multiple absorption–reflection cycles . In this context, the synthesis of the roxbyite phase with a snowflake morphology having radially symmetric dendrites and regularly repeating structure in microscopic dimensions is highly important.…”

“…4,25−27 However, the construction of microscopically ordered morphology with dimensions in the wavelength range of the visible energy photons is advantageous in terms of improved light harvesting through multiple absorption− reflection cycles. 28 In this context, the synthesis of the roxbyite phase with a snowflake morphology having radially symmetric dendrites and regularly repeating structure in microscopic dimensions is highly important. Such an ordered structure is contemplated to enhance the light preoccupation characteristic of the semiconductor through multiple inelastic scatterings and absorption of light.…”