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Upgrading Electricity Generation and Electromagnetic Interference Shielding Efficiency via Phase-Change Feedback and
Xinpeng Hu1,2, Bingqing Quan1,2, Chuanbiao Zhu1,2
1Key Laboratory of Material Chemistry for Energy Conversion and Storage, Huazhong University of Science & Technology, Ministry of Education, Wuhan, 430074, P. R. China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|March 23, 2023
Summary
Flexible multilayered phase change films (PCFs) enhance light-thermal-electric conversion efficiency and boost electricity generation. These novel origami-derived films offer tunable electromagnetic interference (EMI) shielding for diverse applications.
Area of Science:
- Materials Science
- Nanotechnology
- Energy Harvesting
Background:
- Traditional thermoelectric devices require advanced materials for improved energy conversion and electromagnetic interference (EMI) shielding.
- Developing multifunctional materials that enhance both electricity generation and light-thermal-electric conversion efficiency is a significant challenge.
Purpose of the Study:
- To develop flexible multilayered phase change films (PCFs) using a novel origami strategy.
- To investigate the simultaneous enhancement of light-thermal-electric conversion efficiency, electricity generation quality, and EMI shielding performance.
Main Methods:
- Fabrication of flexible multilayered phase change films (PCFs) via a simple and novel origami strategy.
- Characterization of the films' light-thermal-electric conversion efficiency, electrical output (voltage, current, power), and EMI shielding effectiveness.
Main Results:
- PCFs improved light-thermal-electric conversion efficiency by up to 11.3%.
- Significant upgrades in average voltage (27.3%), average current (23.8%), and power output (2010x increase from microwatts to milliwatts) were observed.
- Tunable EMI shielding efficiency ranging from 39.2 to 71.9 dB was achieved through the origami process.
Conclusions:
- The developed PCFs offer a promising solution for multifunctional materials with high-efficiency solar energy harvesting and upgraded electricity generation.
- The materials demonstrate broad application prospects in electromagnetic interference (EMI) shielding, energy storage, and conversion.
- The origami strategy provides a versatile method for tailoring material properties for specific applications.
Keywords:
electromagnetic interference shieldinglight-thermal-electric conversionphase-change feedbacksimple origami strategyupgrading electricity generationMore Related Videos
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