Strong two-photon absorptions in heteroleptic bis(phthalocyaninato) rare earth sandwich complexes. (January 2017)

• Record Type: Journal Article
• Authors: Sheng, Ning; Gu, Bing; Ren, Boxiao; Wang, Yingying; Han, Lijuan; Wang, Jingxia; Cao, Houyong; Guan, Meihui; Zhai, Xiurong; Sha, Jingquan
• Is Part Of: Dyes and pigments. Volume 136(2017)
• Page Start: 553
• Page End: 558
• Publication Date: 2017-01
• Subjects: Sandwich type phthalocyanine -- Rare earth -- Two-photon absorption -- Heteroleptic -- Donor-π-acceptor -- Femtosecond-pulsed Z-scan technique; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2016.09.016
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: A series of heteroleptic phthalocyaninato rare earth double-decker complexes owning large two-photon absorption cross-sections were reported. The third-order nonlinear optical properties of these heteroleptic phthalocyaninato complexes were experimentally investigated by the Z-scan technique with application of femtosecond (800 nm) pulse lasers. Due to the highly delocalized π-electron system and intense π-π interactions between the phthalocyaninato macrocycles, all complexes were revealed to exhibit large two-photon absorption cross-sections with the value up to 1.83 × 10 5 GM, which are comparable to those efficient two-photon absorbing materials. The optical limiting behavior of these complexes in chloroform was also investigated by using femtosecond laser pulses. The excellent two-photon absorption properties and optical limiting performance indicate their good application potential in optoelectronic devices. Highlights: A series of heteroleptic phthalocyaninato rare earth double-decker complexes owning large two-photon absorption cross-sections were reported. The value of the two-photon absorption cross-sections of them are up to 105 GM, which are comparable to those efficient two-photon absorbing materials. All the heteroleptic substituted complexes exhibit better optical limiting performance.