Fabrication of uniformly dispersed nanoparticle-doped chalcogenide glass

Chao Lu, Juliana M.P. Almeida, Nan Yao, Craig B. Arnold

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The dispersion of metallic nanoparticles within a chalcogenide glass matrix has the potential for many important applications in active and passive optical materials. However, the challenge of particle agglomeration, which can occur during traditional thin film processing, leads to materials with poor performance. Here, we report on the preparation of a uniformly dispersed Ag-nanoparticle (Ag NP)/chalcogenide glass heterogeneous material prepared through a combined laser- and solution- scattering based process. Laser ablation of bulk silver is performed directly within an arsenic sulfide/propylamine solution resulting in the formation of Ag NPs in solution with an average particle size of less than 15 nm as determined by dynamic light. The prepared solutions are fabricated into thin films using standard coating processes and are then analyzed using energy-dispersive X-ray spectroscopy and transmission electron microscopy to investigate the particle shape and size distribution. By calculating the nearest neighbor index and standard normal deviate of the nanoparticle locations inside the films, we verify that a uniformly dispersed distribution is achieved through this process.

Original languageEnglish (US)
Article number261906
JournalApplied Physics Letters
Volume105
Issue number26
DOIs
StatePublished - Dec 29 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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