50-Fold EQE Improvement up to 6.27% of Solution-Processed All-Inorganic Perovskite CsPbBr3 QLEDs via Surface Ligand Density Control
50-Fold EQE Improvement up to 6.27% of Solution-Processed All-Inorganic Perovskite CsPbBr3 QLEDs via Surface Ligand Density Control
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50倍%20EQE%20改善%20up%20to%206.27%%20of%20溶液处理%20全无机%20%20%20%20%20%20钙钛矿%20CsPbBr3%20QLEDs%20via%20Surface%20Ligand%20Density%20Control
DOI：
10.1002/adma.201603885
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发表时间：
2017-02-02
影响因子：
29.4
通讯作者：
Zeng, Haibo
中科院分区：
文献类型：
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作者：
Li, Jianhai;Xu, Leimeng;Zeng, Haibo
β-石墨二炔（-GDY）是二维石墨炔家族中的一员，具有零禁带宽度，在储能、有机电子等领域具有潜在的应用前景。本工作以四乙炔为前驱体，采用改进的Schier-Hay偶联反应在铜箔上成功地合成了含-GDY的薄膜。所生长的碳膜表面光滑、连续、均匀。电学测量显示电导率为3.47 × 10（-6）S m（-1），功函数为5.22 eV。然后制备了TiO2@-GDY纳米复合材料，与纯TiO 2相比，其光催化性能有所增强。
beta-Graphdiyne (-GDY) is a member of 2D graphyne family with zero band gap, and is a promising material with potential applications in energy storage, organic electronics, etc. However, the synthesis of -GDY has not been realized yet, and the measurement of its intrinsic properties remains elusive. In this work, -GDY-containing thin film is successfully synthesized on copper foil using modified Glaser-Hay coupling reaction with tetraethynylethene as precursor. The as-grown carbon film has a smooth surface and is continuous and uniform. Electrical measurements reveal the conductivity of 3.47 x 10(-6) S m(-1) and the work function of 5.22 eV. TiO2@-GDY nanocomposite is then prepared and presented with an enhancement of photocatalytic ability compared to pure TiO2.