Work

Highly spectral dependent enhancement of upconversion emission with sputtered gold island films

Year: 2010

Type: article

Abstract: We report a five-fold overall enhancement of upconversion emission in NaYF(4) : Yb/Er nanocrystals when coupled with gold island films. Spectroscopic studies show that the enhancement factors are highly dependent on the exact spectral positions and excitation power density, with a largest enhancement factor of more than 12 observed at selected spectral positions, which may be attributed to different upconversion processes involved.

Source: Chemical Communications

DOI: 10.1039/c0cc03566a

Authors: Hua Zhang, Di Xu, Yu Huang, Xiangfeng Duan

Institutions: University of California, Los Angeles, California NanoSystems Institute

Language: English

Topic: Luminescence Properties of Advanced Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: National Institutes of Health, U.S. Public Health Service

Awards: G6952614038, Integrated Free-standing Nanoprobes for Neuroscience and Beyond