Luminescent layers for enhanced silicon solar cell performance: Up-conversion

A. Shalav, B. S. Richards, M. A. Green

Research output: Contribution to journalArticlepeer-review

530 Citations (Scopus)


An up-converting material can generate one high-energy photon for every two or more incident low-energy photons. This material when placed on the rear side of a traditional bi-facial photovoltaic solar cell has the potential to increase the overall efficiency of the PV device by utilising sub-bandgap photons that would otherwise be transmitted through the device. This paper reviews and examines the application of rare-earth doped inorganic phosphors for achieving external quantum efficiencies for sub-bandgap photons for a bi-facial crystalline silicon photovoltaic device. The mechanisms for up-conversion are discussed and recent experimental results on a bi-facial silicon photovoltaic-upconversion device are analysed. © 2007 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)829-842
Number of pages14
JournalSolar Energy Materials and Solar Cells
Issue number9
Publication statusPublished - 23 May 2007


  • Erbium
  • Luminescence
  • Photovoltaics
  • Rare-earths
  • Silicon
  • Solar cells
  • Up-conversion


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