Details

Autor(en) / Beteiligte

• Pilarek, B.
• Ptak, M.
• Stefańska, D.
• Watras, A.
• Peksa, P.
• Sieradzki, A.
• Szczygieł, I.
• Hanuza, J.

Titel

Optical properties of Nd3+ ions in (Ca4Nb2)1-xNd2xO9–6x solid solution

Ist Teil von

• Journal of molecular structure, 2022-02, Vol.1250, p.131715, Article 131715

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2022

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• •The Ca4Nb2O9–xNd2O3 pseudobinary samples were synthesized by the high-temperature solid state method.•The limited solid solution with formula (Ca4Nb2)1-xNd2xO9–6x was found to exist in this system between 0 ≤ x ≤ 0.40.•The structural phase transition of (Ca4Nb2)1-xNd2xO9–6x occurs with an increase in the content of Nd2O3 in the Ca4Nb2O9–Nd2O3 system as indicated by spectroscopic studies. The Ca4Nb2O9–xNd2O3 (where x = 0.1–1.0) pseudobinary samples were synthesized by the high-temperature solid state method. Optical properties of Nd3+ ions in this oxide system were studied and related to the structural phase transition dependent on the Nd2O3 oxide content. Structural and optical properties are discussed based on ATR IR, dielectric, diffuse reflectance and emission spectra measurements. The spectroscopic studies show a structural phase transition occurring for x = 0.5 and for which the initial limited solid solution transforms to the diphasic form of Ca2NdNbO6 and Nd2O3.