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Metal‐Oxide‐Free Methylammonium Lead Iodide Perovskite‐Based Solar Cells: the Influence of Organic Charge Transport Layers
Author(s) -
Malinkiewicz Olga,
RoldánCarmona Cristina,
Soriano Alejandra,
Bandiello Enrico,
Camacho Luis,
Nazeeruddin Mohammad Khaja,
Bolink Henk J.
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201400345
Subject(s) - perovskite (structure) , materials science , iodide , oxide , energy conversion efficiency , metal , layer (electronics) , inorganic chemistry , evaporation , electrode , organic solar cell , chemical engineering , nanotechnology , optoelectronics , polymer , chemistry , composite material , metallurgy , physics , engineering , thermodynamics
Metal‐oxide‐free methylammonium lead iodide perovskite‐based solar cells are prepared using a dual‐source thermal evaporation method. This method leads to high quality reproducible films with large crystal domain sizes allowing for an in depth study of the effect of perovskite film thickness and the nature of the electron and hole blocking layers on the device performance. The power conversion efficiency increases from 4.7% for a device with only an organic electron blocking layer to almost 15% when an organic hole blocking layer is also employed. In addition to the in depth study on small area cells, larger area cells (approx. 1 cm −2 ) are prepared and exhibit efficiencies in excess of 10%.