Biomimetic Daytime Radiative Cooling Technology: Prospects and Challenges for Practical Application

Area of Science:

• Materials Science
• Nanotechnology
• Biotechnology

Background:

• Passive daytime radiative cooling (PDRC) leverages natural processes to achieve cooling without energy input.
• Current PDRC technologies face limitations in scalability, durability, and integration, hindering widespread adoption.
• Biomimetic approaches, inspired by evolutionary optimized biological systems, present novel solutions for PDRC.

Purpose of the Study:

• To systematically review recent advancements in biomimetic strategies for PDRC.
• To elucidate the mechanisms of biological structures relevant to photothermal regulation.
• To explore the application potential and address challenges in biomimetic PDRC.

Main Methods:

• Literature review of biomimetic structures and their application in radiative cooling.
• Analysis of biological mechanisms for photothermal regulation.
• Discussion of material-based, structural, and adaptive biomimetic approaches.

Main Results:

• Structural biomimicry offers high optical performance but faces manufacturing constraints.
• Material-based biomimicry shows scalability potential with abundant materials but needs enhanced durability.
• Adaptive biomimicry provides intelligent regulation but requires improved stability and integration.

Conclusions:

• Biomimetic strategies offer significant potential for advancing PDRC technology.
• Overcoming challenges in manufacturing, durability, and system integration is crucial for scalability.
• Further research into biomimetic radiative cooling is essential for future breakthroughs.