The AM1.5 absorption factor of thin-film solar cells

R Santbergen, JM Goud, M Zeman, JAM van Roosmalen, RJC van Zolingen

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

Abstract

Both for photovoltaic and photovoltaic/thermal applications insight is required in the mechanisms that determine the effective absorption factor Aeff. Aeff is the part of the incident irradiation that is converted into heat, taking into account that part of the energy is withdrawn as electricity. Aeff was studied for five different solar cell technologies using an optical simulation model and ranges from 74% for single junction amorphous silicon solar cells to 82% for CIGS solar cells. The simulations also show that the longer wavelength part of the spectrum is hardly absorbed by the active semiconductors, but mostly by free carrier absorption in the transparent conductive oxide film present in these devices.
Original languageEnglish
Pages (from-to)715-723
Number of pages9
JournalSolar Energy Materials & Solar Cells
Volume94
Issue number5
DOIs
Publication statusPublished - 2010

Keywords

  • academic journal papers
  • CWTS 0.75 <= JFIS < 2.00

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