scholarly journals X-ray Lithography on Perovskite Nanocrystals Films: From Patterning with Anion-Exchange Reactions to Enhanced Stability in Air and Water

ACS Nano ◽  
2015 ◽  
Vol 10 (1) ◽  
pp. 1224-1230 ◽  
Author(s):  
Francisco Palazon ◽  
Quinten A. Akkerman ◽  
Mirko Prato ◽  
Liberato Manna
Keyword(s):  
Anion Exchange ◽  
Exchange Reactions ◽  
Perovskite Nanocrystals ◽  
X Ray ◽  
Enhanced Stability

Tuning the emission spectrum of highly stable cesium lead halide perovskite nanocrystals through poly(lactic acid)-assisted anion-exchange reactions

2018 ◽  
Vol 6 (20) ◽  
pp. 5375-5383 ◽  
Author(s):  
Longshi Rao ◽  
Yong Tang ◽  
Caiman Yan ◽  
Jiasheng Li ◽  
Guisheng Zhong ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Emission Spectrum ◽  
Anion Exchange ◽  
Poly Lactic Acid ◽  
Exchange Reactions ◽  
Perovskite Nanocrystals ◽  
Stable Cesium ◽  
Halide Perovskite ◽  
Lead Halide

Emission tunable CsPbX3 NCs with high QY and stability were synthesized via PLA-assisted anion-exchange reactions.

Solid-State Anion Exchange Reactions for Color Tuning of CsPbX3 Perovskite Nanocrystals

2016 ◽  
Vol 28 (24) ◽  
pp. 9033-9040 ◽  
Author(s):  
Chris Guhrenz ◽  
Albrecht Benad ◽  
Christoph Ziegler ◽  
Danny Haubold ◽  
Nikolai Gaponik ◽  
...  
Keyword(s):  
Solid State ◽  
Anion Exchange ◽  
Exchange Reactions ◽  
Color Tuning ◽  
Perovskite Nanocrystals

Stereoselectivity in the Reactions between the Anion of 4-Phenyl-5,6-dihydro-2H-thiopyran 1-Oxide and Electrophiles

1985 ◽  
Vol 38 (1) ◽  
pp. 119 ◽  
Author(s):  
RL Crumbie ◽  
DD Ridley ◽  
PJ Steel
Keyword(s):  
Anion Exchange ◽  
Membered Ring ◽  
Alkyl Halides ◽  
Exchange Reactions ◽  
X Ray ◽  
Higher Temperature

Treatment of the anion(17), prepared from the six- membered ring allylic sulfoxide 4-phenyl-5,6-dihydro-2H-thiopyran 1-oxide (8) with primary alkyl halides at -78°, affords trans-2-alkyl-4-phenyl-5,6-dihydro-2H-thiopyran 1-oxides exclusively. The stereospecificity of these reactions thus corresponds to that obtained from the related saturated cyclic sulfoxides . However, when the anion (17) is treated with 2-iodopropane (-78° → 20°) a mixture of 2-cis and 2-trans products results. Independent experiments indicate that the lack of stereoselectivity is due to anion exchange reactions at the higher temperature required to effect alkylation. 2-cis and 2-trans Adducts also are obtained in reactions of the anion (17) with benzaldehydes (-78° → 0°), and from X-ray crystallographic analyses it has been established that the cis adducts predominate, with little selectivity in attack on the two enantiotopic faces of the aldehyde.

scholarly journals Tuning the Optical Properties of Cesium Lead Halide Perovskite Nanocrystals by Anion Exchange Reactions

2015 ◽  
Vol 137 (32) ◽  
pp. 10276-10281 ◽  
Author(s):  
Quinten A. Akkerman ◽  
Valerio D’Innocenzo ◽  
Sara Accornero ◽  
Alice Scarpellini ◽  
Annamaria Petrozza ◽  
...  
Keyword(s):  
Optical Properties ◽  
Anion Exchange ◽  
Exchange Reactions ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Lead Halide

Band gap engineering of lead halide perovskite nanocrystals via room temperature bi-phasic anion exchange reactions

2020 ◽  
Vol 33 ◽  
pp. 1274-1276 ◽  
Author(s):  
K. Sandeep ◽  
P.S. Vismaya ◽  
P.A. Ansiya ◽  
K.S. Hithisha ◽  
K.B. Jithuna Das ◽  
...  
Keyword(s):  
Band Gap ◽  
Anion Exchange ◽  
Room Temperature ◽  
Exchange Reactions ◽  
Band Gap Engineering ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Lead Halide

Kinetics of Ion-Exchange Reactions in Hybrid Organic–Inorganic Perovskite Thin Films Studied by In Situ Real-Time X-ray Scattering

2018 ◽  
Vol 9 (23) ◽  
pp. 6750-6754 ◽  
Author(s):  
Alessandro Greco ◽  
Alexander Hinderhofer ◽  
M. Ibrahim Dar ◽  
Neha Arora ◽  
Jan Hagenlocher ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Exchange ◽  
Real Time ◽  
Exchange Reactions ◽  
Inorganic Perovskite ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Kinetics Of Ion Exchange
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