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Low‐Temperature Fabrication of Efficient Porous Titania Photoelectrodes by Hydrothermal Crystallization at the Solid/Gas Interface
Author(s) -
Zhang D.,
Yoshida T.,
Minoura H.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200304561
Subject(s) - materials science , nanocrystalline material , chemical engineering , hydrothermal circulation , mesoporous material , crystallization , fabrication , aqueous solution , substrate (aquarium) , porosity , nanotechnology , composite material , organic chemistry , catalysis , medicine , chemistry , alternative medicine , oceanography , pathology , geology , engineering
Mechanically stable mesoporous nanocrystalline titania thick films can be prepared at low temperature (100 °C) by hydrothermal treatment of an aqueous mixed paste containing nanocrystalline TiO 2 powder and Ti salts. The Ti monomers are converted into crystalline TiO 2 , which acts as a “glue” to chemically connect the TiO 2 particles. Highly efficient flexible dye‐sensitized solar cells prepared on a conductive plastic film substrate were realized using this method and a conversion efficiency of 2.3 % at AM1.5 was achieved.