Title of Paper:Fabrication of Two-Dimensional Platelets with Heat-Resistant Luminescence and Large Two-Photon Absorption Cross Sections via Cooperative Solution/Solid Self-Assembly

Journal:J. Am. Chem. Soc.

Summary:Thecombinationof solutionself-assembly,whichenablesprimarymorphologicalcontrol,andsolidself-assembly,whichenablesthecreationof novelproperties,canleadto theformationof newfunctionalmaterialsthatcannotbe obtainedusingeithertechniquealone.Herein,we reporta cooperativesolution/solidself-assemblystrategyto  fabricatenoveltwo-dimensional(2D)platelets.Precursor2Dplateletswithpreor-ganizedpackingstructure,shape,andsizeare formedvia the livingself-assemblyof  a  donor−acceptorfluorophoreandvolatilecoformer(i.e.,propanol)in solutionphase.Afterhigh-temperatureannealing,propanolis releasedfromtheprecursorplatelets,andnewcontinuousintermolecularhydrogenbondsare formed.Thenew2Dplateletsformedretainthecontrollablemorphologiesoriginallydefinedby the solutionphaselivingself-assemblybut exhibitremarkableheat-resistantluminescenceup to 200°C  andhightwo-photonabsorptioncrosssections(i.e.,>19,000GMat 760nm laserexcitation).

First Author:巩彦君

Volume:145

Page Number:9771

Translation or Not:No

Date of Publication:2023-04

Included Journals:SCI