Laser photoacoustic spectra of Sm3+ ion in Sm2O3 and SmCl3.6H2O in the spectral profile 484-542 nm.

Laser photoacoustic spectra of Sm3+ ion in Sm2O3 and SmCl3.6H2O in the spectral profile 484-542 nm.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2004-03-24)

B Mandal, S N Thakur

ABSTRACT

Microphone based photoacoustic (PA) spectrometer to study solids in powder form was designed and fabricated. Laser PA spectra of Sm3+ ion in Sm2O3 and SmCl3.6H2O microcrystalline powders were recorded first time in 484-542 nm spectral region at room temperature. Analysis of these PA spectra shows new information on the Stark components of ground and excited states of Sm3+ ion. A comparison of Stark energy levels of Sm3+ ion in both oxide and hexahydrated chloride hosts is presented here.

MATERIALS

Product Number

Brand

Product Description

641855

Sigma-Aldrich

Samarium(III) oxide dispersion, nanoparticles, <100 nm particle size (BET)

394394

Sigma-Aldrich

Samarium(III) oxide, 99.999% trace rare earth metals basis

228672

Sigma-Aldrich

Samarium(III) oxide, 99.9% trace metals basis

392537

Sigma-Aldrich

Samarium(III) oxide, 99.99% trace metals basis

637319

Sigma-Aldrich

Samarium(III) oxide, nanopowder, <100 nm particle size (BET), ≥99% trace metals basis