Precise Tuning of the Thickness and Optical Properties of Highly Stable 2D Organometal Halide Perovskite Nanosheets through a Solvothermal Process and Their Applications as a White LED and a Fast Photodetector

2020 ◽  
Vol 12 (5) ◽  
pp. 6283-6297 ◽  
Author(s):  
Sumaiya Parveen ◽  
Kamal Kumar Paul ◽  
P. K. Giri
Keyword(s):  
Optical Properties ◽  
White Led ◽  
Solvothermal Process ◽  
Organometal Halide Perovskite ◽  
Halide Perovskite

scholarly journals Synthesis and optical properties of lead-free cesium germanium halide perovskite quantum rods

RSC Advances ◽  
2018 ◽  
Vol 8 (33) ◽  
pp. 18396-18399 ◽  
Author(s):  
Lin-Jer Chen
Keyword(s):  
Optical Properties ◽  
Lead Free ◽  
Solvothermal Process ◽  
Quantum Rods ◽  
Halide Perovskite ◽  
First Time

Herein, the fabrication of a lead-free cesium germanium halide perovskite produced via a simple solvothermal process is reported for the first time.

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.

A Study of Optical Properties of a Glass Composition of a ZnO-Bi2O3-P2O5 Glass/Phosphor Composite for a White LED

2015 ◽  
Vol 48 (6) ◽  
pp. 145-150
Author(s):  
Bong-Ki Ryu ◽  
Il-Gu Kim ◽  
Young-Seok Kim ◽  
Jong-Hwan Kim ◽  
Jae-Yeop Jung ◽  
...  
Keyword(s):  
Optical Properties ◽  
Glass Composition ◽  
White Led ◽  
Glass Phosphor
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