Growth and characterization of pure and Pr3+-doped Cs4PbBr6 crystals - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Journal of Crystal Growth Year : 2008

Growth and characterization of pure and Pr3+-doped Cs4PbBr6 crystals

Abstract

Centimeter-sized single crystals of pure and Pr3+-doped Cs4PbBr6 were successfully grown using a high-temperature solution (HTS)-based vertical Bridgman–Stockbarger method in silica ampoules sealed under Ar gas. The resulting single crystals are bright orange transparent, non-hygroscopic, with a low phonon energy and a wide transparency in the middle infrared (MIR) region. We present the growth conditions together with a characterization of the single crystals by means of calorimetry measurements, room temperature single crystal and powder X-ray diffraction (XRD), Raman, visible and Fourier-transform infrared (FT-IR) spectroscopies. Cs4PbBr6 crystallizes at room temperature in the trigonal space group R-3c, with a = b = 13.7219(2)A˚, c = 17.3153(3)A˚, α = β = 90°, γ = 120° and Z = 6. Pr3+ ions can be dissolved into Cs4PbBr6 crystals, resulting in broad MIR absorption bands.
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Dates and versions

cea-00348678 , version 1 (19-12-2008)

Identifiers

  • HAL Id : cea-00348678 , version 1

Cite

Matias Velázquez, Alban Ferrier, Stanislav Péchev, Pierre Gravereau, Jean-Pierre Chaminade, et al.. Growth and characterization of pure and Pr3+-doped Cs4PbBr6 crystals. Journal of Crystal Growth, 2008, 310, pp.5458-5463. ⟨cea-00348678⟩
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