Greenhouse Effect in Photovoltaic Cells to Enhance Efficiency of Power Beam Conversion

Andrei Sergeev, Andrew Hewitt, Harry Hier, C. Mike Waits, Myles A. Steiner, Kimberly Sablon

Research output: Contribution to journalArticlepeer-review

1 Scopus Citations


Recent progress in semiconductor materials with minor nonradiative recombination has stimulated investigations of novel photovoltaic (PV) converters with optical control of radiative emission. Angle restricted emission was experimentally demonstrated in PV devices with external photon recycling due to specific photonic crystals or mirrors. In this work we investigate the power beam conversion by the cell with front greenhouse filter, which transmits the laser light, but recycles the low energy bandgap quanta emitted by the semiconductor cell. We calculate the limiting characteristics of the greenhouse PV converters and optimize design of the converter taking into account the nonradiative recombination processes. In optimized devices addition of the greenhouse filter can increase power beam conversion efficiency by several percent.

Original languageAmerican English
Pages (from-to)897-903
Number of pages7
JournalMRS Advances
Issue number16
StatePublished - 2019

Bibliographical note

Publisher Copyright:
Copyright © Materials Research Society 2018Â.

NREL Publication Number

  • NREL/JA-5900-72815


  • high efficiency
  • light emission
  • luminescence
  • photon recycling
  • photovoltaics


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