scholarly journals Fiber‐Spinning‐Chemistry Method toward In Situ Generation of Highly Stable Halide Perovskite Nanocrystals

2019 ◽  
Vol 6 (22) ◽  
pp. 1901694 ◽  
Author(s):  
Xuan Lu ◽  
Yang Hu ◽  
Jiazhuang Guo ◽  
Cai‐Feng Wang ◽  
Su Chen
Keyword(s):  
Fiber Spinning ◽  
Perovskite Nanocrystals ◽  
Chemistry Method ◽  
Halide Perovskite ◽  
In Situ Generation

scholarly journals Nanocrystals perovskites photocatalyzed singlet oxygen generation for light-driven organic reactions

2021 ◽  
Author(s):  
Marco Corti ◽  
Rossella Chiara ◽  
Lidia Romani ◽  
Barbara Mannucci ◽  
Lorenzo Malavasi ◽  
...  
Keyword(s):  
Diels Alder ◽  
Organic Reactions ◽  
Hydroxy Ketone ◽  
Oxidation Reactions ◽  
Perovskite Nanocrystals ◽  
Oxygen Generation ◽  
Unsaturated Ketones ◽  
Halide Perovskite ◽  
Lead Halide

AbstractLead halide perovskite nanocrystals were prepared and used as photocatalysts for the in situ 1O2 generation to perform hetero Diels–Alder, ene and oxidation reactions with suitable dienes and alkenes. The methodology has been reasonably standardized and made applicable to a variety of olefinic substrates. The scope of the method is finely illustrated by the results in all the tested reactions, which allowed to obtain desymmetrized hydroxy-ketone derivatives, unsaturated ketones and epoxides. Some limitations were also observed especially in the case of the alkene oxidations as well as poor chemoselectivity was somewhere observed. Graphic abstract 1O2 generated by lead halide perovskite nanocrystals as photocatalyst in organic reactions.

Highly Stable Cesium Lead Halide Perovskite Nanocrystals through in Situ Lead Halide Inorganic Passivation

2017 ◽  
Vol 29 (17) ◽  
pp. 7088-7092 ◽  
Author(s):  
Ju Young Woo ◽  
Youngsik Kim ◽  
Jungmin Bae ◽  
Tae Gun Kim ◽  
Jeong Won Kim ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Stable Cesium ◽  
Halide Perovskite ◽  
Lead Halide

In-situ fabricated anisotropic halide perovskite nanocrystals in polyvinylalcohol nanofibers: Shape tuning and polarized emission

Nano Research ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1411-1416 ◽  
Author(s):  
Linghai Meng ◽  
Changgang Yang ◽  
Jingjia Meng ◽  
Yongzhi Wang ◽  
Yong Ge ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Polarized Emission ◽  
Halide Perovskite ◽  
Shape Tuning

In situ fabrication of halide perovskite nanocrystals embedded in polymer composites via microfluidic spinning microreactors

2017 ◽  
Vol 5 (36) ◽  
pp. 9398-9404 ◽  
Author(s):  
Kangzhe Ma ◽  
Xiang-Yun Du ◽  
Ya-Wen Zhang ◽  
Su Chen
Keyword(s):  
Composite Materials ◽  
Polymer Composites ◽  
Mass Production ◽  
Perovskite Nanocrystals ◽  
In Situ Fabrication ◽  
Continuous Mass ◽  
Halide Perovskite

We demonstrated a green avenue to continuous mass production of stably fluorescent perovskite nanocrystal composite materials via a microfluidic spinning technique, potentially useful for application in WLEDs and displays.

Highly diastereo- and enantioselective organocatalytic synthesis of trifluoromethylated erythritols based on the in situ generation of unstable trifluoroacetaldehyde

2021 ◽  
Author(s):  
Kazumasa Funabiki ◽  
Toshiya Gotoh ◽  
Ryunosuke Kani ◽  
Toshiyasu Inuzuka ◽  
Yasuhiro Kubota
Keyword(s):  
Trifluoromethyl Group ◽  
In Situ Generation

A highly diastereo- and enantioselective organocatalytic method to synthesise erythritols bearing a trifluoromethyl group has been investigated.

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>

Determination of the optical constants of metal-halide perovskite nanocrystals

2019 ◽  
Author(s):  
Gabriel Lozano ◽  
Andrea Rubino ◽  
Mauricio E. Calvo ◽  
Hernán Míguez
Keyword(s):  
Optical Constants ◽  
Metal Halide ◽  
Perovskite Nanocrystals ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

The role of surface chemical states on the photocatalytic behavior of all-inorganic mixed halide perovskite nanocrystals

2019 ◽  
Author(s):  
Andrés Fabián Gualdrón-Reyes ◽  
Iván Mora-Seró ◽  
Eliseo Amado-González ◽  
Jorge-Enrique Rueda-P ◽  
Rogelio Ospina ◽  
...  
Keyword(s):  
Surface Chemical ◽  
Perovskite Nanocrystals ◽  
Chemical States ◽  
Halide Perovskite
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