表面配体调控的CH3NH3PbBr3纳米片的聚集自组装
Ligand-Assisted Aggregation Self-Assembly of CH3NH3PbBr3 Nanoplatelets
作者单位E-mail
黄翔 南京工业大学化学与分子工程学院, 南京 210000  
荆强 南京大学现代工程与应用科学学院, 南京 210000  
鲁振达 南京大学现代工程与应用科学学院, 南京 210000 luzhenda@nju.edu.cn 
任小明 南京工业大学化学与分子工程学院, 南京 210000 xmren@njtech.edu.cn 
摘要: 采用热注入的方法合成了CH3NH3PbBr3纳米片,荧光光谱分析发现稀释一定的倍数会使荧光光谱由451 nm红移到531 nm。TEM及XRD分析表明,发光红移是由CH3NH3PbBr3纳米片聚集自组装导致的颗粒变大引起的。进一步的对比实验表明,油胺在纳米片聚集自组装的过程中起到了至关重要的作用,由此结合XRD和TEM表征,阐述了CH3NH3PbBr3纳米片聚集自组装的机理。
关键词: 纳米片  稀释  油胺  聚集自组装
基金项目: 国家自然科学基金(No.21601083)、江苏省自然科学基金(No.BK20160614)和中央高校基本科研业务费专项基金项目资助。
Abstract: CH3NH3PbBr3 nanoplatelets were synthesized via a hot-injection method. Red shift from 451 to 531 nm of the photoluminescence (PL) spectrum was found after different folds of dilution. The results of TEM and XRD show that red shift is caused by the growth of particles for the aggregation self-assembly of CH3NH3PbBr3 nanoplatelets. The contrast experiments prove that oleylamine plays an important part in the aggregation self-assembly of nanoplatelets. The aggregation self-assembly mechanism of CH3NH3PbBr3 nanoplatelets is elaborated combining the results of XRD and TEM.
Keywords: nanoplatelets  dilution  oleylamine  aggregation self-assembly
投稿时间:2018-03-28 修订日期:2018-05-28
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黄翔,荆强,鲁振达,任小明.表面配体调控的CH3NH3PbBr3纳米片的聚集自组装[J].无机化学学报,2018,34(8):1489-1493.
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