Research on surface plasmon resonance coupling of metallic nanostructures is an important area in the field of plasmonics because distinctive collective optical properties can be realized that are different from the individual constituents. Here we report the localized surface plasmon resonance of hybrid metal-organic nanorods. Colloidal-dispersed Au-PPy nanorods were synthesized as a representative material using a modified electrochemical method, and the collective oscillation properties were systematically investigated by comparing these materials with pure Au nanorods. We observed the extended surface plasmon resonance of a hybrid system. The presence of doped-PPy segments on Au segments induced an enhanced coherent electric field due to the partial contribution of π-electrons on the PPy segment, which led to a red-shifted plasmon feature. Additionally, we demonstrated that surface plasmon resonance extension can be tuned by dopant anions, which demonstrates a way of tuning a dopant-induced plasmonic system.

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A magneto-mechano-electric (MME) generator with root mean square (RMS) output exceeding 50 mW is demonstrated by integration of a piezoelectric Pb(Mg 1/3 Nb 2/3 )O 3 -Pb(Zr,Ti)O 3 (PMN-PZT) single crystal and an electromagnetic induction structure to convert a gentle alternating current magnetic field into electricity to operate a high-power consumption multi-functional Internet of Things (IoT) environmental monitoring system. The 2nd resonance bending mode at the cantilever-type hybrid MME generator enabled much higher output power than the conventional 1st resonance mode, which is theoretically investigated by a finite element analysis. The hybridized MME generator can generate a total RMS output power of 60 mW since the output power of the piezoelectric and electromagnetic induction parts is 26.7 and 33.3 mW, respectively, by a magnetic field of 7 Oe at the 2nd harmonic bending mode. The hybrid MME generator is employed to irradiate a red laser as well as to fully charge a commercial 280 mAh LiFePO 4 battery. Finally, a self-powered multi-functional IoT environment monitoring system is constructed by integrating the hybrid MME generator, a power management circuit, and a wireless multi ple sensing modules. The remarkable output power from the hybridized MME generator enabled the continuous sensing of nine types of ambient information and subsequent transmission of the measured data to a smartphone.

Fourier transform surface plasmon resonance of tri-component Au–Ni–Au nanorods with silica shells for on-demand and controlled release of drug.

This work reports a multiscale micro- and nano-structured magneto-mechano-triboelectric nanogenerator (MMTENG) enabled by an eco-friendly NaCl particle imprinting process to operate an internet of thing (IoT) sensor.

We have designed a method of harvesting electrical energy using plasmon-enhanced light pressure. A device was fabricated as a cut cone structure that optimizes light collection so that the weak incident light pressure can be sufficiently enhanced inside the cut cone to generate electrical energy. An increase in the device’s current output is a strong indication that the pressure of incident light has been enhanced by the surface plasmons on a platinum layer inside the cut cone. The electrical energy harvested in a few minutes by irradiating pulsed laser light on a single micro device was possible to illuminate a blue LED.

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