Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient ( ηT* ∼ 33%) solar cell

  title={Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient ( $\eta$T* ∼ 33\%) solar cell},
  author={Reza Asadpour and Raghu Vamsi Krishna Chavali and M. Ryyan Khan and Muhammad A. Alam},
  journal={Applied Physics Letters},
As single junction photovoltaic (PV) technologies, both Si heterojunction (HIT) and perovskite based solar cells promise high efficiencies at low cost. Intuitively, a traditional tandem cell design with these cells connected in series is expected to improve the efficiency further. Using a self-consistent numerical modeling of optical and transport characteristics, however, we find that a traditional series connected tandem design suffers from low JSC due to band-gap mismatch and current… 

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