Hybrid methylammonium lead halide perovskite nanocrystals confined in gyroidal silica templates
Hybrid methylammonium lead halide perovskite nanocrystals confined in gyroidal silica templates
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DOI：
10.1039/c6cc10245j
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发表时间：
2017-02-21
影响因子：
4.9
通讯作者：
Yamauchi, Yusuke
中科院分区：
文献类型：
--
作者：
Malgras, Victor;Henzie, Joel;Yamauchi, Yusuke
我们成功合成了限制在螺旋介孔二氧化硅模板中的杂化甲基铵卤化铅纳米晶体。纳米晶体采用与块状钙钛矿对应物相同的晶体结构，突出了通过调整模板孔径来控制带隙的能力。除了为材料在通道内扩散提供更容易进入的空间外，螺旋模板的 3D 网格还应该允许溶剂更容易逸出并在不同点钉扎颗粒，从而促进在更大结构（例如纳米线、纳米棒）上形成孤立的纳米颗粒。
We successfully synthesized hybrid methylammonium lead halide nanocrystals confined in a gyroidal mesoporous silica template. The nanocrystals adopted the same crystal structure as their bulk perovskite counterparts, highlighting the ability to control the bandgap by tuning the pore-size of the template. Besides providing more accessible spaces for the materials to diffuse within the channels, the 3D mesh of the gyroidal template should also allow easier escape of the solvent and pinning of the particles at different points, thus promoting the formation of isolated nanoparticles over larger structures (e. g., nanowires, nanorods).