Synthesis of CsPbBr3 perovskite nanocrystals with acoustically actuated millisecond mixing

2021 ◽  
Vol 9 (1) ◽  
pp. 313-321
Author(s):  
Chun Kiu Ng ◽  
Hao Deng ◽  
Hanchen Li ◽  
Wenping Yin ◽  
Tuncay Alan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Microfluidic Platform ◽  
Perovskite Nanocrystals ◽  
Highly Efficient

Improved morphology and size homogeneity of CsPbBr3 perovskite nanocrystals synthesised at low-temperature through highly efficient acoustic mixing in a microfluidic platform.

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>

Highly efficient low temperature solution processable planar type CH3NH3PbI3 perovskite flexible solar cells

2016 ◽  
Vol 4 (5) ◽  
pp. 1572-1578 ◽  
Author(s):  
Jin Hyuck Heo ◽  
Min Ho Lee ◽  
Hye Ji Han ◽  
Basavaraj Rudragouda Patil ◽  
Jae Su Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Low Temperature ◽  
Highly Efficient ◽  
Temperature Solution ◽  
Reverse Scan ◽  
Solution Processable

A highly efficient PEN/ITO/ZnO/CH3NH3PbI3 perovskite/PTAA/Au flexible planar solar cell with 1.1 V Voc, 18.7 mA cm−2Jsc, 75% FF, and 15.4% η for the forward scan direction and 1.1 V Voc, 18.7 mA cm−2Jsc, 76% FF and 15.6% η for the reverse scan direction under illumination of 1 Sun was demonstrated.

Highly Efficient Ru/CeO2 Catalyst for Formaldehyde Oxidation at Low Temperature and Mechanistic Study

2021 ◽  
Author(s):  
Xiaoxiao Qin ◽  
Xueyan Chen ◽  
Min Chen ◽  
Jiangho Zhang ◽  
Hong He ◽  
...  
Keyword(s):  
Low Temperature ◽  
Indoor Air ◽  
Air Purification ◽  
Mechanistic Study ◽  
Highly Efficient ◽  
Formaldehyde Oxidation ◽  
Indoor Air Purification

Formaldehyde (HCHO) elimination at low temperature is of great interest for indoor air purification. In this work, 1 wt. % Ru supported on CeO2 and Al2O3 catalysts were prepared by...

scholarly journals Synthesis of Cesium Lead Halide Perovskite Nanocrystals in a Droplet-Based Microfluidic Platform: Fast Parametric Space Mapping

Nano Letters ◽  
2016 ◽  
Vol 16 (3) ◽  
pp. 1869-1877 ◽  
Author(s):  
Ioannis Lignos ◽  
Stavros Stavrakis ◽  
Georgian Nedelcu ◽  
Loredana Protesescu ◽  
Andrew J. deMello ◽  
...  
Keyword(s):  
Space Mapping ◽  
Microfluidic Platform ◽  
Perovskite Nanocrystals ◽  
Parametric Space ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Hollow metal halide perovskite nanocrystals with efficient blue emissions

2020 ◽  
Vol 6 (17) ◽  
pp. eaaz5961 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Quantum Confinement Effect ◽  
Visible Spectrum ◽  
Precursor Solution ◽  
Metal Halide ◽  
Synthetic Control ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as 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 spectrum. Despite remarkable advances in the field of perovskite NCs, many nanostructures in inorganic NCs have not yet been realized in metal halide perovskites, and producing highly efficient blue-emitting perovskite NCs remains challenging and of great interest. Here, we report the discovery of highly efficient blue-emitting cesium lead bromide (CsPbBr3) perovskite hollow NCs. By facile solution processing of CsPbBr3 precursor solution containing 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 effect results in color tuning of CsPbBr3 NCs from green to blue, with high PLQEs of up to 81%.

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