Enhanced 1.06 mu m emission in Nd3+- doped lead-tellurite glasses doped with silver nanoparticles

Autor(es)

Dousti, Mohammad Reza ; Amjad, Raja Junaid

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF NANOPHOTONICS; v. 10, n. 4 OCT 2016.
• Citações Web of Science: 2

Resumo

Increasing the emission cross section of rare earth (RE) ions-doped transparent oxide glasses is a challenging issue. The incorporation of the metal nanoparticles (NPs) has been proposed as a promising approach to improve the emission properties, though the mechanism behind such a phenomenon is a controversial topic. Tellurite glass doped with Nd3+ ions and silver NPs is prepared and the optical absorption and emission properties are studied. The surface plasmon band of the silver NPs is observed at around 522 nm. Absorption and excitation bands of the Nd3+ ions are detected in the visible spectral region and associated to the transitions from ground state to various excited states. Threefold enhancement in the 1.06 mu m luminescence of Nd3+ ions is observed under 800-nm laser excitation by incorporation of AgNO3 up to 1 mol. %. Probable energy transfer and local field enhancements are discussed to explain the possible interactions between metal and RE ions. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE). (AU)

• Processo FAPESP: 15/08434-5 - Vidros fluoroindatos e telúritos dopados com íons terras raras e nanopartículas metálicas para melhor eficiência de células solares por redução e conversão ascendente de energia solar
• Beneficiário: Andrea Simone Stucchi de Camargo Alvarez Bernardez
• Linha de fomento: Auxílio à Pesquisa - Pesquisador Visitante - Internacional