Postsynthetic Doping of MnCl2 Molecules into Preformed CsPbBr3 Perovskite Nanocrystals via a Halide Exchange-Driven Cation Exchange

2017 ◽  
Vol 29 (29) ◽  
pp. 1700095 ◽  
Author(s):  
Guangguang Huang ◽  
Chunlei Wang ◽  
Shuhong Xu ◽  
Shenfei Zong ◽  
Ju Lu ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Perovskite Nanocrystals ◽  
Halide Exchange

Observation and implication of halide exchange beyond CsPbX3 perovskite nanocrystals

Nanoscale ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 3123-3128 ◽  
Author(s):  
Chao Jia ◽  
Hui Li ◽  
Longfei Tan ◽  
Xianwei Meng ◽  
Jianbo Gao ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Halide Exchange ◽  
First Time

Internanocrystal halide exchange between CsPbX3 perovskite nanocrystals and cesium based non-perovskite nanocrystals has been studied for the first time.

Synthesis of formamidinium lead halide perovskite nanocrystals through solid–liquid–solid cation exchange

2017 ◽  
Vol 5 (23) ◽  
pp. 5680-5684 ◽  
Author(s):  
K. Hills-Kimball ◽  
Y. Nagaoka ◽  
C. Cao ◽  
E. Chaykovsky ◽  
O. Chen
Keyword(s):  
Cation Exchange ◽  
Exchange Reaction ◽  
Perovskite Nanocrystals ◽  
Cation Exchange Reaction ◽  
Halide Perovskite ◽  
Solid Liquid ◽  
Lead Halide

Hybrid organic–inorganic formamidinium lead halide perovskite nanocrystals can be synthesized through a solid–liquid–solid cation exchange reaction.

Postsynthetic, Reversible Cation Exchange between Pb2+ and Mn2+ in Cesium Lead Chloride Perovskite Nanocrystals

2017 ◽  
Vol 121 (37) ◽  
pp. 20387-20395 ◽  
Author(s):  
Di Gao ◽  
Bo Qiao ◽  
Zheng Xu ◽  
Dandan Song ◽  
Pengjie Song ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Lead Chloride ◽  
Perovskite Nanocrystals

scholarly journals Colorimetric Determination of Chloridion in Domestic Water Based on the Wavelength Shift of CsPbBr3 Perovskite Nanocrystals via Halide Exchange

2021 ◽  
Vol 5 (1) ◽  
pp. 3-10
Author(s):  
Guo-Bin Huang ◽  
Zhi-Yong Guo ◽  
Ting-Xiu Ye ◽  
Chen Zhang ◽  
Yan-Mei Zhou ◽  
...  
Keyword(s):  
Water Samples ◽  
Limit Of Detection ◽  
Wavelength Shift ◽  
Cubic Phase ◽  
Colorimetric Determination ◽  
Domestic Water ◽  
Suggested Approach ◽  
Perovskite Nanocrystals ◽  
Halide Exchange

AbstractCubic phase CsPbBr3 perovskite nanocrystals (PNCs) was prepared by a high-temperature hot-injection method. The high photoluminescence quantum yield (PLQY) of as-prepared CsPbBr3 PNCs was 87%, which can be used for the determination of chloridion in domestic water samples based on their wavelength-shift characteristics via halide exchange. The proposal approach for the determination of chloridion reveals a linear correlation ranged from 10 to 200 μM of the chloridion concentration and the wavelength shift of CsPbBr3 PNCs with a correlation coefficient of R2 = 0.9956. The as-mentioned method reveals neglectable responses towards those co-existing ions in the water aside from chloridion, due to the quick exchange between Cl and Br and the outstanding color change caused by wavelength shift. The strategy has been applied to the determination of chloridion in water samples with the recoveries of 98.9–104.2% and the limit of detection (LOD) of 4 μM. These results show that the suggested approach is promising for the development of novel fluorescence detection for chloridion in water.

scholarly journals Halide exchange and surface modification of metal halide perovskite nanocrystals with alkyltrichlorosilanes

Nanoscale ◽  
2018 ◽  
Vol 10 (35) ◽  
pp. 16919-16927 ◽  
Author(s):  
Md Aslam Uddin ◽  
Rosemary L. Calabro ◽  
Doo-Young Kim ◽  
Kenneth R. Graham
Keyword(s):  
Surface Modification ◽  
Metal Halide ◽  
Perovskite Nanocrystals ◽  
Metal Halide Perovskite ◽  
Halide Exchange ◽  
Halide Perovskite

Alkyltrichlorosilanes are demonstrated as efficient Cl-sources for rapid halide exchange with host CsPbBr3 nanocrystals. The resulting CsPbCl3 nanocrystals are encased in protective siloxane shells and are highly stable.

Ligand Engineering for Mn2+ Doping Control in CsPbCl3 Perovskite Nanocrystals via a Quasi-Solid–Solid Cation Exchange Reaction

2020 ◽  
Vol 32 (6) ◽  
pp. 2489-2500 ◽  
Author(s):  
Katie Hills-Kimball ◽  
María Jesús Pérez ◽  
Yasutaka Nagaoka ◽  
Tong Cai ◽  
Hanjun Yang ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Exchange Reaction ◽  
Doping Control ◽  
Perovskite Nanocrystals ◽  
Cation Exchange Reaction

The role of gold oxidation state in the synthesis of Au-CsPbX3 heterostructure or lead-free Cs2AuIAuIIIX6 perovskite nanoparticles

Nanoscale ◽  
2019 ◽  
Vol 11 (39) ◽  
pp. 18109-18115 ◽  
Author(s):  
Freddy A. Rodríguez Ortiz ◽  
Benjamin J. Roman ◽  
Je-Ruei Wen ◽  
Noel Mireles Villegas ◽  
David F. Dacres ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Oxidation State ◽  
Lead Free ◽  
Gold Deposition ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Perovskite Nanoparticles ◽  
Lead Halide

The oxidation state of the Au ions determines whether cation exchange or gold deposition occurs when an Au salt is added to solutions of all-inorganic cesium lead halide perovskite nanocrystals.

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