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15 November, 2020

Dr. Aydin and colleagues' study on the perovskite/silicon tandem solar cells takes place on the cover of the November issue of Nature Energy journal.

With this study Aydin et al,

  • achieved the highest current density for perovskite/silicon tandem solar cells was achieved with 19.8 mA/cm2 thanks to conformally deposited perovskites on double-side textured tandems.
  • for the first time in literature, tested the perovskite-silicon tandem solar cells at real operational conditions and found the device temperature reaches easily >55 C and can reach 75 C.
  • revealed that increasing temperature widens the bandgap of the perovskites while narrowing the silicon. This enables to use of lower bandgap (<1.68 eV) perovskites which makes perovskite/silicon tandems more stable.
  • redefine the ideal perovskite bandgap according to the operational temperature of the modules.
  • reports the for the first time the temperature coefficient of the perovskite/silicon tandem solar cells as −0.26% K−1.

To read more check out the publication.