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Two Photon Absorption Study of Low-Bandgap, Fully Conjugated Perylene Diimide-Thienoacene-Perylene Diimide Ladder-Type Molecules
- Source :
- Chemistry of Materials. 29:6726-6732
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- A new series of donor–acceptor ladder-type molecules were synthesized via Scholl reaction. These molecules contain up to 25-fused rings but still show good air stability and good solubility. The ring-fusing reaction is found to be sensitive to the nature of the side-chain in donor units. The molecular conformations were investigated by 2D NMR and DFT calculations. The photophysical properties were investigated and an intense intramolecular charge-transfer was observed. All of the molecules exhibit two-photon absorption (TPA) activity, and their TPA cross-section shows a linear relationship with increasing conjugation length of the thienoacene-PDI derivatives.
- Subjects :
- General Chemical Engineering
02 engineering and technology
General Chemistry
Conjugated system
010402 general chemistry
021001 nanoscience & nanotechnology
Photochemistry
01 natural sciences
Two-photon absorption
0104 chemical sciences
Scholl reaction
chemistry.chemical_compound
chemistry
Diimide
Intramolecular force
Materials Chemistry
Molecule
Absorption (chemistry)
0210 nano-technology
Perylene
Subjects
Details
- ISSN :
- 15205002 and 08974756
- Volume :
- 29
- Database :
- OpenAIRE
- Journal :
- Chemistry of Materials
- Accession number :
- edsair.doi...........3c7bd6b66de203abed8e7cb062fbaea3