Enhancement of UV absorption and near-infrared emission of Er3+ in Li2SrSiO4:Ce3+, Er3+ for Ge solar spectral convertor

Ye Li, Chenchen Ni, Chun Che Lin, Fengjuan Pan, Ru Shi Liu, Jing Wang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A near-infrared emitting phosphor, Li2SrSiO4:Ce 3+, Er3+, is developed as a potential solar spectral convertor for Ge solar cells. Structure and UV-Vis-NIR optical properties of Li2SrSiO4:Ce3+, Er3+ are investigated using the Rietveld refinement of X-ray diffraction (XRD), diffuse reflection spectrum, photoluminescence excitation and emission spectra at room temperature. These results show that Li2SrSiO4:Ce 3+, Er3+ phosphor has intense absorption broadbands dominating at 360 nm which can efficiently facilite the UV part of the solar spectral when compared to Li2SrSiO4:Er3+. Furthermore, it can give an intense emission around 1530 nm via efficient energy transfer process from Ce3+ to Er3+, matching well with the optimal spectral response of Ge solar cells.

Original languageEnglish
Pages (from-to)1871-1873
Number of pages3
JournalOptical Materials
Issue number11
Publication statusPublished - Jan 1 2014
Externally publishedYes


  • Ge solar cells
  • Near infrared emission
  • Rare earth
  • Solar spectral convertor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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