Photonics Research, 2018, 6 (11): 11001021, Published Online: Nov. 11, 2018
Superior multiphoton absorption properties in colloidal Mn-doped CsPbCl3 two-dimensional nanoplatelets
Figures & Tables
Fig. 1. HR-TEM micrographs depicting the atomic resolution of both (a) flat-lying and stacked Mn-doped CsPbCl 3
Fig. 2. (a) UV-vis absorption and PL spectra of the 2D NPs and the cubic NCs. (b) Time-dependent PL intensity of Mn 2 + λ = 365 nm
Fig. 3. (a) fs-TA data for the Mn-doped 2D NPs and cubic NCs pumped at 350 nm. (b) Recovery curves of the bleaching process at 383 nm for the 2D NPs and that at 387 nm for the cubic NCs. (c), (d) The excitation-intensity-dependent GSB signal amplitude at a time delay of 1 ns is shown for the 2D NPs and the cubic NCs. The curves are the best fit lines calculated based on Eq. (5 ).
Fig. 4. (a) PL spectra for the 2D NPs and cubic NCs excited by fs pulses at 680 nm. The inset shows the PL emissions of the 2D NPs and cubic NCs. (b) PL intensity versus excitation intensity with log–log plot slopes of 1.95 and 2.02, respectively. (c) 2PA and linear absorption spectra of the 2D NPs and cubic NCs plotted over the two- and one-photon energies. (d) Photo-induced energy transfer process from the host (CsPbCl 3 Mn 2 +
Fig. 5. (a) PL spectra for the 2D NPs and cubic NCs excited by fs pulses at 1300 nm. The inset shows the PL emissions of the Mn-doped 2D NPs and cubic NCs. (b) PL intensity of the 2D NPs and cubic NCs versus the optical intensity with log–log plot slopes of 2.98 and 3.02, respectively. (c) 3PA spectra of the 2D NPs and cubic NCs. The inset shows solutions of the 2D NPs and cubic NCs in a pure host (CsPbCl 3 A 1 6 T 1 4 Mn 2 +
Tingchao He, Junzi Li, Xin Qiu, Shuyu Xiao, Xiaodong Lin. Superior multiphoton absorption properties in colloidal Mn-doped CsPbCl3 two-dimensional nanoplatelets[J]. Photonics Research, 2018, 6(11): 11001021.
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