Enhancing NIR emission of Yb3+ by silver nanoclusters in oxyfluoride glass

Ronghua Ma; Jiangyun Qian; Shuo Cui; Xvsheng Qiao; Feng Wang; Xianping Fan

doi:10.1016/j.jlumin.2013.10.036

Enhancing NIR emission of Yb3+ by silver nanoclusters in oxyfluoride glass

Ronghua Ma, Jiangyun Qian, Shuo Cui, Xvsheng Qiao, Feng Wang, Xianping Fan

Shenzhen Research Institute

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

35 Citations (Scopus)

Abstract

Oxyfluoride glass comprising Yb³⁺ ions and Ag nanoclusters was prepared via a melt-quenching method. The molecule-like Ag clusters (ML-Ag) in the glass displayed broad absorption and emission bands in the ultraviolet (UV) and visible spectral regions, respectively. The luminescence quantum yield (QY) was determined to be higher than 90%. We observed energy transfer from ML-Ag nanoclusters to Yb³⁺ ions as evidenced by time resolved luminescence spectra, which resulted in a four-fold enhancement in NIR emission of Yb ³⁺. The luminescence enhancement effect described here would be applied to boost the efficiency of solar cells by converting high energy UV photons into NIR photons that better match the absorption of photovoltaic devices. © 2013 Elsevier B.V.

Original language	English
Pages (from-to)	222-225
Journal	Journal of Luminescence
Volume	152
Online published	22 Oct 2013
DOIs	https://doi.org/10.1016/j.jlumin.2013.10.036
Publication status	Published - Aug 2014

Research Keywords

Ag clusters
Energy transfer
Luminescence
Oxyfluoride glass

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10.1016/j.jlumin.2013.10.036

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title = "Enhancing NIR emission of Yb3+ by silver nanoclusters in oxyfluoride glass",

abstract = "Oxyfluoride glass comprising Yb3+ ions and Ag nanoclusters was prepared via a melt-quenching method. The molecule-like Ag clusters (ML-Ag) in the glass displayed broad absorption and emission bands in the ultraviolet (UV) and visible spectral regions, respectively. The luminescence quantum yield (QY) was determined to be higher than 90%. We observed energy transfer from ML-Ag nanoclusters to Yb3+ ions as evidenced by time resolved luminescence spectra, which resulted in a four-fold enhancement in NIR emission of Yb 3+. The luminescence enhancement effect described here would be applied to boost the efficiency of solar cells by converting high energy UV photons into NIR photons that better match the absorption of photovoltaic devices. {\textcopyright} 2013 Elsevier B.V.",

keywords = "Ag clusters, Energy transfer, Luminescence, Oxyfluoride glass",

author = "Ronghua Ma and Jiangyun Qian and Shuo Cui and Xvsheng Qiao and Feng Wang and Xianping Fan",

year = "2014",

month = aug,

doi = "10.1016/j.jlumin.2013.10.036",

language = "English",

volume = "152",

pages = "222--225",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Enhancing NIR emission of Yb3+ by silver nanoclusters in oxyfluoride glass

AU - Ma, Ronghua

AU - Qian, Jiangyun

AU - Cui, Shuo

AU - Qiao, Xvsheng

AU - Wang, Feng

AU - Fan, Xianping

PY - 2014/8

Y1 - 2014/8

N2 - Oxyfluoride glass comprising Yb3+ ions and Ag nanoclusters was prepared via a melt-quenching method. The molecule-like Ag clusters (ML-Ag) in the glass displayed broad absorption and emission bands in the ultraviolet (UV) and visible spectral regions, respectively. The luminescence quantum yield (QY) was determined to be higher than 90%. We observed energy transfer from ML-Ag nanoclusters to Yb3+ ions as evidenced by time resolved luminescence spectra, which resulted in a four-fold enhancement in NIR emission of Yb 3+. The luminescence enhancement effect described here would be applied to boost the efficiency of solar cells by converting high energy UV photons into NIR photons that better match the absorption of photovoltaic devices. © 2013 Elsevier B.V.

AB - Oxyfluoride glass comprising Yb3+ ions and Ag nanoclusters was prepared via a melt-quenching method. The molecule-like Ag clusters (ML-Ag) in the glass displayed broad absorption and emission bands in the ultraviolet (UV) and visible spectral regions, respectively. The luminescence quantum yield (QY) was determined to be higher than 90%. We observed energy transfer from ML-Ag nanoclusters to Yb3+ ions as evidenced by time resolved luminescence spectra, which resulted in a four-fold enhancement in NIR emission of Yb 3+. The luminescence enhancement effect described here would be applied to boost the efficiency of solar cells by converting high energy UV photons into NIR photons that better match the absorption of photovoltaic devices. © 2013 Elsevier B.V.

KW - Ag clusters

KW - Energy transfer

KW - Luminescence

KW - Oxyfluoride glass

UR - http://www.scopus.com/inward/record.url?scp=84899628575&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84899628575&origin=recordpage

U2 - 10.1016/j.jlumin.2013.10.036

DO - 10.1016/j.jlumin.2013.10.036

M3 - RGC 21 - Publication in refereed journal

SN - 0022-2313

VL - 152

SP - 222

EP - 225

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Enhancing NIR emission of Yb3+ by silver nanoclusters in oxyfluoride glass

Abstract

Research Keywords

UN SDGs

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