Abstract
We report the synthesis and investigation of multiphoton absorption properties of a novel series of diphenylamino-end-capped ladder-type oligo(p-phenylene)s which exhibit greatly enhanced and efficient multiphoton (from two- to five-photon) upconverted blue photoluminescence with which the record-high intrinsic three-photon absorption cross-section of 4.56 × 10 -76 cm 6 s 2 in the femtosecond regime has been obtained. Exceptionally efficient two- to five-photon-excited lasing in the blue region has also been demonstrated in which the highest two-photon-excited lasing efficiency of 0.34% has been achieved.
Original language | English |
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Pages (from-to) | 7297-7300 |
Number of pages | 4 |
Journal | Journal of the American Chemical Society |
Volume | 134 |
Issue number | 17 |
Early online date | 20 Apr 2012 |
DOIs | |
Publication status | Published - 2 May 2012 |
Scopus Subject Areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry