Near ultraviolet and visible-to-near-infrared spectral converting properties and energy transfer mechanism of Sr_2SiO_4:Ce^3+, Pr^3+ phosphor

A visible-to-near-infrared spectral converting phosphor Ce3+, Pr3+ co-doped Sr2SiO4 was synthesized by a solid-state reaction, and was developed as a potential solar spectral convertor for Si solar cells. The diffuse reflection, photoluminescence excitation and emission spectra at room temperature and at 3K were investigated. The visible and near infrared luminescent properties and energy levels of Pr3+ were investigated in detail. These results demonstrate that the absorption of Pr3+ was greatly broaden and enhanced in UV-Vis through efficient energy feeding by allowed 4f-5d absorption of Ce3+. The energy transfer mechanism including downshift and quantum cutting process is also proposed.

[1]  Q. Su,et al.  Ultraviolet–Visible–Near-Infrared Luminescence Properties and Energy Transfer Mechanism of a Novel 5d Broadband Sensitized Sr3SiO5:Ce3+,Yb3+ Suitable for Solar Spectral Converter , 2013 .

[2]  L. Wondraczek,et al.  Near-infrared downconversion in Pr^3+/Yb^3+ co-doped boro-aluminosilicate glasses and LaBO_3 glass ceramics , 2013 .

[3]  Wei Huang,et al.  Enhancing solar cell efficiency: the search for luminescent materials as spectral converters. , 2013, Chemical Society reviews.

[4]  Jinke Tang,et al.  Study on the effects of 5d energy locations of Ce³⁺ ions on NIR quantum cutting process in Y₂SiO₅: Ce³⁺, Yb³⁺. , 2012, Optics express.

[5]  A. Bensalah-Ledoux,et al.  Energy transfer in CaYAlO4: Ce3+, Pr3+ for sensitization of quantum-cutting with the Pr3+-Yb3+ couple , 2012 .

[6]  Q. Su,et al.  A dual-mode solar spectral converter CaLaGa3S6O:Ce3+,Pr3+: UV-Vis-NIR luminescence properties and solar spectral converting mechanism , 2012 .

[7]  Q. Zhang,et al.  Efficient first-order resonant near-infrared quantum cutting in β-NaYF4:Ho3+,Yb3+ , 2011 .

[8]  Q. Zhang,et al.  Broadband Downconversion of Ultraviolet Light to Near-Infrared Emission in Bi3+–Yb3+-Codoped Y2O3 Phosphors , 2011 .

[9]  J. Qiu,et al.  Broadband Near-Infrared Quantum Cutting in Eu2 + and Yb3 + Ions Co-doped CaAl2O4 Phosphor , 2010 .

[10]  Xiaoyong Huang,et al.  Recent progress in quantum cutting phosphors , 2010 .

[11]  G. Dong,et al.  Broadband conversion of visible light to near-infrared emission by Ce3+, Yb3+-codoped yttrium aluminum garnet. , 2009, Optics letters.

[12]  B. van der Ende,et al.  Near‐Infrared Quantum Cutting for Photovoltaics , 2009 .

[13]  B. Richards.  Enhancing the performance of silicon solar cells via the application of passive luminescence conversion layers , 2006 .

[14]  E. Snitzer,et al.  Pr(3+)-doped fluoride fiber amplifier operating at 1.31 microm. , 1991, Optics letters.

[15]  R. D. Shannon.  Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides , 1976 .