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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2225–2228

Quantum cutting in Pr3+-Yb3+ codoped chalcohalide glasses for high-efficiency c-Si solar cells

Yin-Sheng Xu, Fei Huang, Bo Fan, Chang-Gui Lin, Shi-Xun Dai, Li-Yan Chen, Qiu-Hua Nie, Hong-Li Ma, and Xiang-Hua Zhang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 8, pp. 2225-2228 (2014)
http://dx.doi.org/10.1364/OL.39.002225


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Abstract

Downconversion materials, which can convert one high-energy photon to two low-energy photons, have provided a promising avenue for the enhancement of solar cell efficiency. In this work, the Pr3+-Yb3+ codoped 25GeS2-35Ga2S3-40CsCl chalcohalide glasses were synthesized in a vacuumed silica ampoule by the melting–quenching technique. Under 474 nm excitation, the visible and near-IR emission spectra reveal the energy transfer from Pr3+ to Yb3+ ions, resulting in the intense 1008 nm near-IR emission for the c-Si solar cells. By tuning the excitation laser power, it is determined that one visible photon has been cut into two near-IR photons during the energy transfer process. With the help of an integrated sphere, the real quantum yields of near-IR emissions were calculated. For the 0.2Pr2S3-0.2Yb2S3 (in mol.%) codoped chalcohalide glass, the quantum yield equals 10.8%. Although this efficiency is still low, this result will open a new route to realize the efficient spectral modification of the solar spectrum.

© 2014 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(250.5230) Optoelectronics : Photoluminescence
(260.2160) Physical optics : Energy transfer

ToC Category:
Materials

History
Original Manuscript: February 4, 2014
Manuscript Accepted: March 3, 2014
Published: April 3, 2014

Citation
Yin-Sheng Xu, Fei Huang, Bo Fan, Chang-Gui Lin, Shi-Xun Dai, Li-Yan Chen, Qiu-Hua Nie, Hong-Li Ma, and Xiang-Hua Zhang, "Quantum cutting in Pr3+-Yb3+ codoped chalcohalide glasses for high-efficiency c-Si solar cells," Opt. Lett. 39, 2225-2228 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-8-2225

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