State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai institute of Ceramics, Chinese Academy of Sciences, Dingxi 1295, Changning, Shanghai 200050, China.
Nanoscale. 2017 Jun 22;9(24):8298-8304. doi: 10.1039/c7nr02763j.
Plasmonic materials have drawn emerging interest with their high charge carrier density and solar harvesting ability, resulting in tunable enhanced absorption and scattering resonances. Herein, a novel plasmonic MoO hybrid comprising orthorhombic MoO nanorod and hexagonal MoO nanograin was obtained using a simple hydrothermal method. An excellent photochromic property with up to 40% solar modulation efficiency at 600-1000 nm was achieved, which was mainly attributed to the localized surface plasmon resonance (LSPR) absorption at around 900 nm and the polaron absorption at 650 nm with a synergistic effect. In comparison to the limited near-infrared absorption of conventional crystalline MoO, a distinct modulation range in the critical range between visible and near-infrared was rationalized by a size effect deduced from Mie scattering theory. Our research provided a novel plasmonic molybdenum oxide hybrid to realize an optical modulation function with a tunable wavelength range for energy saving.
等离子体材料因其高电荷载流子密度和太阳能收集能力而引起了人们的关注，从而产生了可调谐的增强吸收和散射共振。在此，我们通过一种简单的水热法获得了一种由正交相 MoO 纳米棒和六方相 MoO 纳米颗粒组成的新型等离子体 MoO 杂化材料。该杂化材料具有优异的光致变色性能，在 600-1000nm 范围内的太阳能调制效率高达 40%，这主要归因于 900nm 左右的局域表面等离子体共振（LSPR）吸收和 650nm 处的极化子吸收的协同作用。与传统结晶 MoO 的有限近红外吸收相比，根据米氏散射理论推断的尺寸效应，在可见光和近红外之间的临界范围内实现了明显的调制范围。我们的研究提供了一种新型的等离子体氧化钼杂化材料，实现了具有可调谐波长范围的节能光学调制功能。
