Ultrafast Many-Particle Phenomena in Lead Bromide Hybrid Perovskite Nanocrystals Under Strong Optical Excitation

2021 ◽  
Vol 125 (5) ◽  
pp. 3198-3205
Author(s):  
Supriya Ghosh ◽  
Rajeev Ray ◽  
Suman Kalyan Pal
Keyword(s):  
Optical Excitation ◽  
Perovskite Nanocrystals ◽  
Hybrid Perovskite ◽  
Lead Bromide

Revisiting the nontemplate approach for the synthesis of highly green emissive hybrid perovskite nanocrystals: platelets or spheres?

Nanoscale ◽  
2022 ◽  
Author(s):  
Ignacio Rosa-Pardo ◽  
Rita Belen Cevallos-Toledo ◽  
Lakshminarayana Polavarapu ◽  
Raul Arenal ◽  
Raquel E. Galian ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Synthetic Strategy ◽  
Hybrid Perovskite ◽  
Lead Bromide

The long-standing debate about the morphology of colloidal methylammonium lead bromide perovskites nanocrystals, manufactured by our nontemplate synthetic strategy reported in 2014, is now resolved; specifically, the highest green emissive...

Hollow Metal Halide Perovskite Nanocrystals with Efficient Blue Emissions

2019 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Precursor Solution ◽  
Visible Spectral Region ◽  
Metal Halide ◽  
Synthetic Control ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Quantum Confinement Effects ◽  
Metal Halide Perovskite ◽  
Lead Bromide ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as a new generation light emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g. platelets, wires, and cubes, have been discovered to exhibit tunable emissions across the whole visible spectral region. Despite remarkable advances in the field of metal halide perovskite NCs over the last few years, many nanostructures in inorganic NCs have yet been realized in metal halide perovskites and producing highly efficient blue emitting perovskite NCs remains challenging and of great interest. Here we report for the first time the discovery of highly efficient blue emitting cesium lead bromide perovskite (CsPbBr3) NCs with hollow structures. By facile solution processing of cesium lead bromide perovskite precursor solution containing additional ethylenediammonium bromide and sodium bromide, in-situ formation of hollow CsPbBr3 NCs with controlled particle and pore sizes is realized. Synthetic control of hollow nanostructures with quantum confinement effects results in color tuning of CsPbBr3 NCs from green to blue with high PLQEs of up to 81 %.<br><div><br></div>

Bromopropane as a Novel Bromine Precursor for the Completely Amine Free Colloidal Synthesis of Ultra-Stable and Highly Luminescent Green-Emitting Cesium Lead Bromide (CsPbBr3) Perovskite Nanocrystals

Nanoscale ◽  
2021 ◽  
Author(s):  
Syed Akhil ◽  
V.G.Vasavi Dutt ◽  
Nimai Mishra
Keyword(s):  
Optoelectronic Devices ◽  
Colloidal Synthesis ◽  
Ambient Conditions ◽  
Active Materials ◽  
Perovskite Nanocrystals ◽  
Lead Bromide ◽  
Halide Perovskite ◽  
Lead Halide ◽  
Poor Stability

Recently lead halide perovskite nanocrystals (PNCs) have attracted intense interest as promising active materials for optoelectronic devices. However, their extensive applications are still hampered by poor stability in ambient conditions....

Vibrational Wave-packet Dynamics Reveals Intrinsic Lattice Anharmonicity in Hybrid Perovskite Nanocrystals

2021 ◽  
Author(s):  
Tushar Debnath ◽  
Debalaya Sarker ◽  
He Huang ◽  
Zhong-Kang Han ◽  
Amrita Dey ◽  
...  
Keyword(s):  
Wave Packet ◽  
Perovskite Nanocrystals ◽  
Wave Packet Dynamics ◽  
Hybrid Perovskite

scholarly journals Long-Range Exciton Diffusion in Two-Dimensional Assemblies of Cesium Lead Bromide Perovskite Nanocrystals

ACS Nano ◽  
2020 ◽  
Vol 14 (6) ◽  
pp. 6999-7007 ◽  
Author(s):  
Erika Penzo ◽  
Anna Loiudice ◽  
Edward S. Barnard ◽  
Nicholas J. Borys ◽  
Matthew J. Jurow ◽  
...  
Keyword(s):  
Long Range ◽  
Two Dimensional ◽  
Perovskite Nanocrystals ◽  
Exciton Diffusion ◽  
Lead Bromide

Effect of Oleamine on Microwave-Assisted Synthesis of Cesium Lead Bromide Perovskite Nanocrystals

Langmuir ◽  
2020 ◽  
Vol 36 (45) ◽  
pp. 13663-13669
Author(s):  
Heng Pan ◽  
Xu Li ◽  
Xu Zhang ◽  
Jiaming Liu ◽  
Xiaojuan Chen ◽  
...  
Keyword(s):  
Microwave Assisted Synthesis ◽  
Perovskite Nanocrystals ◽  
Microwave Assisted ◽  
Lead Bromide

scholarly journals Self-assembly of a robust hydrogen-bonded octylphosphonate network on cesium lead bromide perovskite nanocrystals for light-emitting diodes

Nanoscale ◽  
2019 ◽  
Vol 11 (25) ◽  
pp. 12370-12380 ◽  
Author(s):  
Alasdair A. M. Brown ◽  
Thomas J. N. Hooper ◽  
Sjoerd A. Veldhuis ◽  
Xin Yu Chin ◽  
Annalisa Bruno ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ligand Exchange ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Lead Bromide ◽  
Hydrogen Bonded

Ligand exchange with octylphosphonate enhances PLQY and LED efficiency.

scholarly journals Programmable Colloidal Approach to Hierarchical Structures of Methylammonium Lead Bromide Perovskite Nanocrystals with Bright Photoluminescent Properties

2017 ◽  
Vol 29 (8) ◽  
pp. 3526-3537 ◽  
Author(s):  
Meghan B. Teunis ◽  
Merrell A. Johnson ◽  
Barry B. Muhoberac ◽  
Soenke Seifert ◽  
Rajesh Sardar
Keyword(s):  
Hierarchical Structures ◽  
Perovskite Nanocrystals ◽  
Lead Bromide
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