Pressure-Induced Structural and Optical Properties of Organometal Halide Perovskite-Based Formamidinium Lead Bromide

2016 ◽  
Vol 7 (13) ◽  
pp. 2556-2562 ◽  
Author(s):  
Lingrui Wang ◽  
Kai Wang ◽  
Bo Zou
Keyword(s):  
Optical Properties ◽  
Structural And Optical Properties ◽  
Lead Bromide ◽  
Organometal Halide Perovskite ◽  
Halide Perovskite

High Pressure Structural and Optical Properties of Two-Dimensional Hybrid Halide Perovskite (CH3NH3)3Bi2Br9

2019 ◽  
Vol 58 (2) ◽  
pp. 1621-1626 ◽  
Author(s):  
Qian Li ◽  
Lixiao Yin ◽  
Zhongwei Chen ◽  
Kerong Deng ◽  
Shuiping Luo ◽  
...  
Keyword(s):  
High Pressure ◽  
Optical Properties ◽  
Two Dimensional ◽  
Structural And Optical Properties ◽  
Halide Perovskite

Tetraphenylethylene derivative capped CH3NH3PbBr3 nanocrystals: AIE-activated assembly into superstructures

2017 ◽  
Vol 196 ◽  
pp. 91-99 ◽  
Author(s):  
Feng Zhang ◽  
Tianye Zhou ◽  
Guogang Liu ◽  
Jianbing Shi ◽  
Haizheng Zhong ◽  
...  
Keyword(s):  
Optical Properties ◽  
Semiconductor Nanocrystals ◽  
Average Diameter ◽  
Emission Feature ◽  
Optical And Electrical Properties ◽  
Ligand Effects ◽  
Organometal Halide Perovskite ◽  
Halide Perovskite ◽  
Reprecipitation Method ◽  
Functionalized Ligands

The surfaces of semiconductor nanocrystals have been known to be a very important factor in determining their optical properties. The introduction of functionalized ligands can further enhance the interactions between nanocrystals, which is beneficial for the assembly of nanocrystals. In a previous report, we developed a ligand-assisted reprecipitation method to fabricate organometal halide perovskite nanocrystals capped with octylamine and oleic acid. Here, a TPE derivative 3-(4-(1,2,2-triphenylvinyl)phenoxy)propan-1-amine, which shows a typical aggregation induced emission feature, is applied to replace octylamine to fabricate CH3NH3PbBr3 nanocrystals. The obtained CH3NH3PbBr3 nanocrystals were nanocubes (average diameter ∼ 11.1 nm) and are likely to assemble into ordered superstructures. By adjusting the chain length of the TPE derivative, we found that the assembly of the CH3NH3PbBr3 nanocrystals was correlated with the interactions between the TPE groups. This provides a new platform to investigate the ligand effects in nanocrystal solids and may potentially achieve enhanced optical and electrical properties.

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