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Nanoscale Perovskite‐Sensitized Solar Cell Revisited: Dye‐Cell or Perovskite‐Cell?
Author(s) -
Yoo SoMin,
Lee SeulYi,
Velilla Hernandez Esteban,
Kim Myoung,
Kim Gitae,
Shin Taeho,
Nazeeruddin Mohammad Khaja,
MoraSeró Iván,
Lee Hyo Joong
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202000223
Subject(s) - perovskite (structure) , halide , iodide , nanoscopic scale , solar cell , mesoporous material , nanometre , photosensitizer , bromide , dye sensitized solar cell , perovskite solar cell , chemical engineering , materials science , chemistry , nanoparticle , nanotechnology , inorganic chemistry , photochemistry , catalysis , optoelectronics , electrode , crystallography , organic chemistry , engineering , electrolyte
A general and straightforward way of preparing few‐nanometer‐sized well‐separated MAPbI x Br 3− x (MA=methylammonium) perovskite photosensitizers on the surface of an approximately 1 μm thick mesoporous TiO 2 photoanode was suggested through a two‐step sequential deposition of low‐concentrated lead halides (0.10–0.30 m PbI 2 or PbBr 2 ) and methylammonium iodide/bromide (MAI/MABr). When those nanoscale MAPbI x Br 3− x perovskites were incorporated as a photosensitizer in typical solid‐state dye‐sensitized solar cells (ss‐DSSCs), it could be verified clearly by the capacitance analysis that nano‐particulate MAPbI 3 perovskites play the same role as that of a typical dye sensitizer (MK‐2 molecule) although their size, composition, and structure are different.