Surface plasmon resonance induced excellent solar control for VO2@SiO2 nanorods-based thermochromic foils
Surface plasmon resonance induced excellent solar control for VO2@SiO2 nanorods-based thermochromic foils
复制标题
表面等离子体共振诱导 VO2@SiO2 纳米棒热致变色箔具有优异的阳光控制
DOI：
10.1039/c3nr02221h
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发表时间：
2013-01-01
期刊：
影响因子：
6.7
通讯作者：
Jin, Ping
中科院分区：
文献类型：
--
作者：
Zhou, Yijie;Huang, Aibin;Jin, Ping
过渡金属氧化物纳米晶由于其外d价电子的独特性质而成为局域表面等离子体共振的主体材料。VO 2（M）VO 2由于其接近室温（类似于68摄氏度）的可逆金属-绝缘体转变（MIT）温度而众所周知，该温度对应于跨MIT的局部表面等离子体共振的出现/消失。本研究采用微乳液法合成了VO 2（M）@SiO2纳米粒子，并利用其在金属态下的表面等离子体共振特性制备了VO 2基热致变色薄膜。光学透射光谱表明，在VO 2基热致变色箔中使用表面等离子体共振极大地提高了其太阳能调节效率，最高可达18.54%，并为优化用于太阳能控制的VO 2基热致变色窗提供了前所未有的见解。
Transition-metal oxide nanocrystals are novel candidates for being used as the hosts of localized surface plasmon resonance because they exhibit fascinating properties arising from the unique characteristics of their outer-d valence electrons. VO2(M) nanocrystal is well-known due to its reversible metal-insulator transition (MIT) temperature near room temperature (similar to 68 degrees C) corresponding to the appearance/disappearance of localized surface plasmon resonance across the MIT. In this study, a microemulsion-based method was introduced to synthesize VO2(M)@SiO2 nanoparticles which were applied to prepare VO2-based thermochromic foils owing to a strong and tunable surface plasmon resonance in the metallic state. The optical transmittance spectra demonstrates that the employment of surface plasmon resonance in VO2-based thermochromic foils greatly improves their solar regulating efficiency up to 18.54%, and provides an unprecedented insight in optimizing VO2-based thermochromic windows for solar control.