Towards high-performance nonlinear optical materials through embedding a D-A system into ß-ketoenamine-linked COFs.
Chem Commun (Camb)
; 59(99): 14669-14672, 2023 Dec 12.
Article
in En
| MEDLINE
| ID: mdl-37991933
ABSTRACT
Two covalent organic framework (COF) films supported by a glass substrate were obtained by solvothermal reaction of an electron donor with electron acceptor 1,3,5-triformylbenzene (TF) or 2,4,6-triformylphloroglucinol (TFP), respectively. The TFP-BD film exhibits a nonlinear absorption coefficient of -3.01 × 105 cm GW-1. The TFP-BD film can aggregate electrons around the connected monomer through the D-A effect due to its highly polar and electronegative carbonyl oxygen atoms, thereby modulating the electronic structure of the COFs. This work provides a novel approach for the structural modulation of optical materials with strong nonlinearity.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Chem Commun (Camb)
Journal subject:
QUIMICA
Year:
2023
Document type:
Article
Affiliation country:
China