title: Structural and upconversion studies of Er3+ codoped with CdS nanoparticles in sol-gel glasses.
abstract: The Er(3+) codoped with CdS nanoparticles in sol-gel glass with an average particle size of about 10 nm have been synthesized by sol-gel method. The green and red up-conversion emissions centered at about 534, 560 and 680 nm, corresponding to the (2)H(11/2)→(4)I(15/2), (4)S(3/2)→(4)I(15/2) and (4)F(9/2)→(4)I(15/2) transitions of Er(3+), respectively; were detected by a 800 nm excitation. The two-photon absorption process is involved in the green and red up-conversion emissions.
authors.affiliation: Department of Physics, Dibrugarh University, Dibrugarh, Assam, India. ltlbktl@gmail.com
authors.forename: L
authors.initials: L
authors.lastname: Bokatial
authors.forename: S
authors.initials: S
authors.lastname: Rai
mesh_terms: D000042:Absorption; D019187:Cadmium Compounds / Q000737:chemistry*; D004871:Erbium / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012822:Silicon Dioxide / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013440:Sulfides / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D013440:Sulfides; C034939:cadmium sulfide; D012822:Silicon Dioxide; D004871:Erbium