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Related Experiment Video

Updated: Jul 22, 2026

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

Published on: January 8, 2016

Flexible Electro-Driven Nanophotonic Device for Dynamic Radiative Thermoregulation and Energy Storage.

Weirong Xie^1,2, Jin Zhang^1,2, Pan Wang^1,2

¹State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.

|June 10, 2025

Summary

Researchers developed a flexible electro-driven nanophotonic (FEN) device for personal thermal comfort. This device offers dynamic radiative thermoregulation and continuous energy supply, inspired by cephalopod skin.

Keywords:

dynamic radiative thermoregulation energy storage flexible nanophotonic device

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Last Updated: Jul 22, 2026

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Area of Science:

Materials Science
Nanotechnology
Energy Storage

Background:

Maintaining personal thermal comfort requires effective dynamic thermal management.
Integrating multifunctionalities into flexible thermal management devices presents significant challenges.
Cephalopod skin's color modulation mechanisms offer inspiration for novel device designs.

Purpose of the Study:

To develop a flexible electro-driven nanophotonic (FEN) device with dual functionalities.
To achieve dynamic radiative thermoregulation and a continuous energy supply.
To explore tunable electro-optical-thermal conversion mechanisms.

Main Methods:

Fabrication of a flexible device by depositing nanoscaled silicon film onto a flexible nanoporous separator.
Characterization of infrared (IR) emissivity regulation across cooling and heating modes.
Evaluation of integrated energy storage performance, including areal capacity and Coulombic efficiency.
Investigation of tunable electro-optical-thermal conversion via reversible lithium-ion insertion/extraction in silicon.

Main Results:

Achieved high IR emissivity regulation from 0.85 (cooling) to 0.19 (heating) at 8-13 μm.
Demonstrated an apparent temperature modulation of 13 °C.
Obtained a superior areal capacity of ~0.35 mAh cm⁻² and ~70% Coulombic efficiency for energy storage.
Proposed a tunable mechanism for electro-optical-thermal conversion.

Conclusions:

The developed FEN device offers significant advancements in flexible thermal management.
The device's dual functionality positions it as a versatile platform for personal thermal management and energy storage.
Potential applications include next-generation personal thermal management, energy storage systems, and information encryption technologies.