Bionic dual-scale structured films for efficient passive radiative cooling accompanied by robust durability

耐久性 对偶(语法数字) 比例(比率) 辐射传输 材料科学 辐射冷却 环境科学 机械工程 复合材料 工程类 物理 光学 艺术 热力学 文学类 量子力学
作者
Renwei Zhang,Ningning Sun,Zehong Zhao,Shixu Wang,M Zhang,Lei Zhao,Yahua Liu,Shile Feng
出处
期刊:Nanoscale horizons [The Royal Society of Chemistry]
卷期号:9 (8): 1354-1363
标识
DOI:10.1039/d4nh00136b
摘要

Passive radiative cooling (PRC), as an energy-free cooling approach, is ingeniously harnessed for certain natural organisms to withstand extreme high-temperature climates, which has inspired numerous bionic designs. However, it is a great challenge to enhance the durability of the designed materials in practical scenarios while inheriting the natural biological principles. We demonstrate bionic dual-scale structured (BDSS) films for efficient passive radiative cooling accompanied by robust durability after discovering the excellent thermoregulatory properties of the inner surface of Hawaiian scallop shell. We found that the inner surface of the shell consists of large-scale triangular ridges scattered with small-scale terrace steps. This dual-scale structure can enhance the reflectivity of sunlight by efficient Mie scattering and increase the emissivity in the mid-infrared range by lengthening the propagation of photons, thereby decreasing the surface temperature. Underpinned by this finding, we developed a BDSS film that features a strong solar spectrum reflectivity of 0.95 and a high mid-infrared emissivity of 0.98, achieving a sub-ambient cooling of 10.8 °C under direct sunlight. Additionally, the designed films possess robust durability including excellent self-cleaning, flexibility, mechanical strength, chemical stability, and anti-ultraviolet radiation, which is promising for thermal thermoregulation in various harsh scenarios.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
1秒前
LTT发布了新的文献求助10
2秒前
脑洞疼应助阳光的映梦采纳,获得30
2秒前
听话的慕卉完成签到,获得积分10
2秒前
3秒前
思源应助xpd采纳,获得50
3秒前
4秒前
雨后阳光完成签到,获得积分10
5秒前
刘叶发布了新的文献求助10
5秒前
李爱国应助虚心的小兔子采纳,获得10
6秒前
skskysky发布了新的文献求助10
6秒前
拼搏的狗完成签到,获得积分10
8秒前
lcyxdsl发布了新的文献求助10
8秒前
9秒前
9秒前
9秒前
香蕉觅云应助666采纳,获得10
9秒前
10秒前
LTT完成签到,获得积分10
11秒前
天一苗发布了新的文献求助10
11秒前
何琳完成签到,获得积分10
11秒前
SS完成签到,获得积分0
12秒前
12秒前
12秒前
夏来应助科研通管家采纳,获得10
12秒前
CWNU_HAN应助科研通管家采纳,获得30
12秒前
上官若男应助科研通管家采纳,获得20
13秒前
YANG给YANG的求助进行了留言
13秒前
科研通AI2S应助科研通管家采纳,获得10
13秒前
无花果应助科研通管家采纳,获得30
13秒前
13秒前
可爱的函函应助善良紫安采纳,获得10
13秒前
Yziii应助科研通管家采纳,获得20
13秒前
SciGPT应助科研通管家采纳,获得10
13秒前
英俊的铭应助科研通管家采纳,获得10
13秒前
Akim应助科研通管家采纳,获得10
13秒前
大模型应助科研通管家采纳,获得10
13秒前
深情安青应助科研通管家采纳,获得10
13秒前
酷波er应助科研通管家采纳,获得20
14秒前
高分求助中
Sustainability in Tides Chemistry 2800
The Young builders of New china : the visit of the delegation of the WFDY to the Chinese People's Republic 1000
Rechtsphilosophie 1000
Bayesian Models of Cognition:Reverse Engineering the Mind 888
Le dégorgement réflexe des Acridiens 800
Defense against predation 800
Very-high-order BVD Schemes Using β-variable THINC Method 568
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3135885
求助须知:如何正确求助?哪些是违规求助? 2786652
关于积分的说明 7778992
捐赠科研通 2442900
什么是DOI,文献DOI怎么找? 1298731
科研通“疑难数据库(出版商)”最低求助积分说明 625219
版权声明 600870