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Tunable Near-infrared Emission and Three-photon Absorption in Lanthanide-doped Double Perovskite Nanocrystals by Md Soif Ahmed; Lavadiya Sireesha; Sudhanshu Kumar Nayak; Rangarajan Bakthavatsalam; Dipanjan Banerjee; Venugopal Rao Soma; Janardan Kundu; Sai Santosh Kumar Raavi is a Materials Science article available to read on EtoBox.
What is Tunable Near-infrared Emission and Three-photon Absorption in Lanthanide-doped Double Perovskite Nanocrystals about?
Cs 2 AgInCl 6 double perovskite (DP) nanocrystals (NCs) are an emerging class of materials with promising application potential in photonics/optoelectronics owing to their nontoxicity, direct bandgap, and high thermal and moisture stability. These NCs are, however, rarely explored for nonlinear optical (NLO) applications. Herein, we present a comprehensive investigation of the photophysical and nonlinear optical properties of erbium-(Er) and ytterbium (Yb)-doped Cs 2 AgInCl 6 nanocrystals (denoted as Er-DP and Yb-DP, respectively). Temperature-dependent photoluminescence of these NCs was analyzed to estimate their exciton binding energy, Huang-Rhys parameter (S), and electron-phonon coupling strength, which are of fundamental interest to gain an in-depth understanding of the material systems. Femtosecond Z-scan experiments with 800 nm excitation revealed the reverse saturable absorption (RSA) behavior owing to three-photon absorption (3PA). The obtained values of the 3PA coefficients were 1.35 × 10 -4 and 1.64 × 10 -4 cm 3 GW -2 , respectively, and the nonlinear refractive indices were estimated to be 1.02 × 10 -15 and 1.15 × 10 -15 cm 2 W -1 , respectively, for Er-DP and Yb-DP. Th
Who reads Tunable Near-infrared Emission and Three-photon Absorption in Lanthanide-doped Double Perovskite Nanocrystals?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Md Soif Ahmed; Lavadiya Sireesha; Sudhanshu Kumar Nayak; Rangarajan Bakthavatsalam; Dipanjan Banerjee; Venugopal Rao Soma; Janardan Kundu; Sai Santosh Kumar Raavi
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2023
- Language
- EN
- Field
- Materials Science (Physical Sciences)