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Quantum yield of luminescence of Ag nanoclusters dispersed within transparent bulk glass vs. glass composition and temperature
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10.1063/1.4772957
/content/aip/journal/apl/101/25/10.1063/1.4772957
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/25/10.1063/1.4772957

Figures

Image of FIG. 1.
FIG. 1.

Room temperature steady state emission spectra excited at (a) 320 nm, (b) 355 nm, and (c) 380 nm, and excitation spectra detected at 580 nm (d) of the fluoride and oxide based glasses.

Image of FIG. 2.
FIG. 2.

Temperature dependences of the integrated Ag nanoclusters luminescence intensity when excited at indicated wavelengths (a) and a ratio of the luminescence spectra taken at 25 K, I25K , and room temperature, IRT, (b) for the fluoride and oxide based glasses.

Image of FIG. 3.
FIG. 3.

(a) Room temperature kinetics of luminescence of the oxide based glass excited at 405 nm and detected at indicated wavelength; pump pulse duration was 70 ps, repetition rate 1 MHz. (b) and (c) Temperature dependence of kinetics of luminescence of the fluoride based and oxide based glasses excited at 355 nm and detected at indicated wavelengths and temperatures, respectively; pump pulse duration was 10 ns and repetition rate 20 Hz.

Image of FIG. 4.
FIG. 4.

A schematic configuration coordinate diagram of electronic levels and transitions of Ag nanoclusters, which account for their luminescence vs. chemical composition and temperature dependence in fluoride (a) and oxide (b) based glasses.

Tables

Generic image for table
Table I.

Room temperature fast (τfast) and slow (τslow) decay components of the Ag emission band in the fluoride based glass obtained after excitation at 406 and detected at 450, 480, 550, and 625 nm as indicated in the respective column heading. Relative accuracy of the values is ±10%. The pump pulse duration was 70 ps and repetition rate 1 MHz.

Generic image for table
Table II.

Temperature dependence of fast (τfast) and slow (τslow) decay components of the Ag emission band in the fluoride and oxide based glasses obtained after excitation at 355 and detected at 450, 500, 600, 700, and 800 nm as indicated in the respective column heading. Relative accuracy of the values is ±10%. Duration of excitation pulses is 10 ns and repetition rate is 20 Hz.

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/content/aip/journal/apl/101/25/10.1063/1.4772957
2012-12-19
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantum yield of luminescence of Ag nanoclusters dispersed within transparent bulk glass vs. glass composition and temperature
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/25/10.1063/1.4772957
10.1063/1.4772957
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