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Titanium‐Containing Zeolites and Microporous Molecular Sieves as Photovoltaic Solar Cells
Author(s) -
Atienzar Pedro,
Valencia Susana,
Corma Avelino,
García Hermenegildo
Publication year - 2007
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200700019
Subject(s) - microporous material , molecular sieve , photocurrent , dye sensitized solar cell , materials science , zeolite , titanium , open circuit voltage , chemical engineering , photovoltaic system , particle size , short circuit , ruthenium , inorganic chemistry , analytical chemistry (journal) , chemistry , optoelectronics , organic chemistry , catalysis , composite material , electrode , voltage , ecology , physics , quantum mechanics , biology , engineering , electrolyte , metallurgy
Abstract Four titanium‐containing zeolites and microporous molecular sieves differing on the crystal structure and particle size (Ti/Beta, Ti/Beta‐60, TS‐1 and ETS‐10) are prepared, and their activity for solar cells after incorporating N3 (a commercially available ruthenium polypyridyl dye) is tested. All the zeolites exhibit photovoltaic activity, and the photoresponse is quite independent of the zeolite pore dimensions or particle size. The photoresponse increases with titanium content in the range 1–7 % wt. In this way, cells are obtained that have open‐circuit voltage V oc =560 mV and maximum short‐circuit photocurrent density I sc =100 μ A, measured for 1×1 cm 2 surfaces with a solar simulator at 1000 W through and AM 1.5 filter. These values are promising and comparable to those obtained for current dye‐sensitized titania solar cells.