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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 3 — Jan. 31, 2011
  • pp: 1749–1754

Efficient near-infrared quantum cutting in NaYF4: Ho3+, Yb3+ for solar photovoltaics

Kaimo Deng, Tao Gong, Lingxun Hu, Xiantao Wei, Yonghu Chen, and Min Yin  »View Author Affiliations

Optics Express, Vol. 19, Issue 3, pp. 1749-1754 (2011)

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Quantum cutting converting a ultraviolet photon into two near-infrared photons has been demonstrated by spectroscopic measurements in NaYF4:Ho3+,Yb3+ synthesized by hydrothermal method. Evidence is provided to confirm the occurrence of quantum cutting. Upon excitation of Ho3+ 5G4 level, near-infrared quantum cutting could occur through a two-step resonance energy transfer from Ho3+ to Yb3+ by cross relaxation, with a maximum quantum efficiency of 155.2%. This result reveals the possibility of violet to near-infrared quantum cutting with a quantum efficiency larger than 100% in Ho3+/Yb3+ codoped fluorides, suggesting the possible application in modifying the solar spectrum to enhance the efficiency of silicon solar cells.

© 2011 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.5690) Materials : Rare-earth-doped materials
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:

Original Manuscript: November 16, 2010
Revised Manuscript: January 13, 2011
Manuscript Accepted: January 13, 2011
Published: January 14, 2011

Kaimo Deng, Tao Gong, Lingxun Hu, Xiantao Wei, Yonghu Chen, and Min Yin, "Efficient near-infrared quantum cutting in NaYF4: Ho3+, Yb3+ for solar photovoltaics," Opt. Express 19, 1749-1754 (2011)

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