ArticleRSC advances2022
D-π-A type conjugated indandione derivatives: ultrafast broadband nonlinear absorption responses and transient dynamics.
Article in RSC advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Transient Absorption Spectroscopy Probes Ultrafast Excited-State Dynamics in D-π-D Chalcone Derivatives.Chemphyschem : a European journal of chemical physics and physical chemistry · 2026Article
- Two-Photon Absorption and Dynamics of Excited States in Bromochalcone Derivatives.The journal of physical chemistry. A · 2025Article
- Synthesis and Application of Specific NJournal of fluorescence · 2025Article
Corrections and comments
- Erratum issued
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ultrafast nonlinear optical response of two 1,3-indandione derivatives (INB3 and INT3) was systematically investigated by the femtosecond Z-scan and pump-probe technique at multiple visible and near infrared wavelengths. Both compounds show strong broadband nonlinear absorption (NLA) and different wavelength-dependent two-photon absorption (TPA) characteristics in the range of 650-1100 nm. The TPA cross section of trithiophene-based compound INT3 was found to be larger than that of triphenylamine-based compound INB3 in the red region (650-800 nm), which is attributed to its longer π-conjugated structure and better molecular planarity. Interestingly, the effective NLA of INB3 was found to be larger than INT3 in the NIR region (800-1100 nm), which is related to the excited state absorption (ESA) induced by TPA. The ultrafast dynamics of both compounds were investigated by femtosecond transient absorption spectroscopy, which revealed a broadband ESA including several relaxation processes. This work extends nonlinear optical research on indandione derivatives, and the results suggest that these derivatives are promising candidates for optical limiting applications.
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Registered trials
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