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Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures
Author(s) -
Schmager Raphael,
Roger Julie,
Schwenzer Jonas A.,
Schackmar Fabian,
Abzieher Tobias,
Malekshahi Byranvand Mahdi,
Abdollahi Nejand Bahram,
Worgull Matthias,
Richards Bryce S.,
Paetzold Ulrich W.
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201907481
Subject(s) - perovskite (structure) , materials science , photovoltaics , nickel oxide , layer (electronics) , lamination , thin film , optoelectronics , tin oxide , photovoltaic system , energy conversion efficiency , oxide , nanotechnology , deposition (geology) , chemical engineering , electrical engineering , metallurgy , engineering , paleontology , sediment , biology
High‐efficiency perovskite‐based solar cells can be fabricated via either solution‐processing or vacuum‐based thin‐film deposition. However, both approaches limit the choice of materials and the accessible device architectures, due to solvent incompatibilities or possible layer damage by vacuum techniques. To overcome these limitations, the lamination of two independently processed half‐stacks of the perovskite solar cell is presented in this work. By laminating the two half‐stacks at an elevated temperature (≈90 °C) and pressure (≈50 MPa), the polycrystalline perovskite thin‐film recrystallizes and the perovskite/charge transport layer (CTL) interface forms an intimate electrical contact. The laminated perovskite solar cells with tin oxide and nickel oxide as CTLs exhibit power conversion efficiencies of up to 14.6%. Moreover, they demonstrate long‐term and high‐temperature stability at temperatures of up to 80 °C. This freedom of design is expected to access both novel device architectures and pairs of CTLs that remain usually inaccessible.