TY - JOUR
T1 - Perovskite/Silicon Tandem Solar Cells
T2 - Effect of Luminescent Coupling and Bifaciality
AU - Jäger, Klaus
AU - Tillmann, Peter
AU - Katz, Eugene A.
AU - Becker, Christiane
N1 - Funding Information:
K.J. and P.T. contributed equally to this work. P.T. thanks the Helmholtz Einstein International Berlin Research School in Data Science (HEIBRiDS) for funding. The authors acknowledge the support from the SNaPSHoTs project in the framework of the German–Israeli bilateral R&D cooperation in the field of applied nanotechnology (grant no. 01IO1806) funded by the German Federal Ministry for Education and Research (BMBF) and the National Technological Innovation Authority of the State of Israel. The results were obtained at the Berlin Joint Lab for Optical Simulations for Energy Research (BerOSE) and the Helmholtz Excellence Cluster SOLARMATH of Helmholtz‐Zentrum Berlin für Materialien und Energie, Zuse Institute Berlin and Freie Universität Berlin. Open access funding enabled and organized by Projekt DEAL.
Funding Information:
K.J. and P.T. contributed equally to this work. P.T. thanks the Helmholtz Einstein International Berlin Research School in Data Science (HEIBRiDS) for funding. The authors acknowledge the support from the SNaPSHoTs project in the framework of the German?Israeli bilateral R&D cooperation in the field of applied nanotechnology (grant no. 01IO1806) funded by the German Federal Ministry for Education and Research (BMBF) and the National Technological Innovation Authority of the State of Israel. The results were obtained at the Berlin Joint Lab for Optical Simulations for Energy Research (BerOSE) and the Helmholtz Excellence Cluster SOLARMATH of Helmholtz-Zentrum Berlin f?r Materialien und Energie, Zuse Institute Berlin and Freie Universit?t Berlin. Open access funding enabled and organized by Projekt DEAL.
Publisher Copyright:
© 2021 The Authors. Solar RRL published by Wiley-VCH GmbH
PY - 2021/3/1
Y1 - 2021/3/1
N2 - The power conversion efficiency of the market-dominating silicon photovoltaics approaches its theoretical limit. Bifacial solar operation with harvesting additional light impinging on the module back and the perovskite/silicon tandem device architecture are among the most promising approaches for further increasing the energy yield from a limited area. Herein, the energy output of perovskite/silicon tandem solar cells in monofacial and bifacial operation is calculated, for the first time considering luminescent coupling (LC) between two sub-cells. For energy yield calculations, idealized solar cells are studied at both standard testing as well as realistic weather conditions in combination with a detailed illumination model for periodic solar panel arrays. Typical experimental photoluminescent quantum yield values reveal that more than 50% of excess electron–hole pairs in the perovskite top cell can be utilized by the silicon bottom cell by means of LC. As a result, LC strongly relaxes the constraints on the top-cell bandgap in monolithic tandem devices. In combination with bifacial operation, the optimum perovskite bandgap shifts from 1.71 eV to the range 1.60–1.65 eV, where already high-quality perovskite materials exist. The results are very important for developing optimal perovskite materials for tandem solar cells.
AB - The power conversion efficiency of the market-dominating silicon photovoltaics approaches its theoretical limit. Bifacial solar operation with harvesting additional light impinging on the module back and the perovskite/silicon tandem device architecture are among the most promising approaches for further increasing the energy yield from a limited area. Herein, the energy output of perovskite/silicon tandem solar cells in monofacial and bifacial operation is calculated, for the first time considering luminescent coupling (LC) between two sub-cells. For energy yield calculations, idealized solar cells are studied at both standard testing as well as realistic weather conditions in combination with a detailed illumination model for periodic solar panel arrays. Typical experimental photoluminescent quantum yield values reveal that more than 50% of excess electron–hole pairs in the perovskite top cell can be utilized by the silicon bottom cell by means of LC. As a result, LC strongly relaxes the constraints on the top-cell bandgap in monolithic tandem devices. In combination with bifacial operation, the optimum perovskite bandgap shifts from 1.71 eV to the range 1.60–1.65 eV, where already high-quality perovskite materials exist. The results are very important for developing optimal perovskite materials for tandem solar cells.
KW - energy yields
KW - luminescent coupling
KW - perovskite/silicon tandem solar cells
UR - http://www.scopus.com/inward/record.url?scp=85099380519&partnerID=8YFLogxK
U2 - 10.1002/solr.202000628
DO - 10.1002/solr.202000628
M3 - Article
AN - SCOPUS:85099380519
VL - 5
JO - Solar RRL
JF - Solar RRL
SN - 2367-198X
IS - 3
M1 - 2000628
ER -