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Enhanced Efficiency of Dye–sensitized Solar Cells Based on Bulk Synthesized TiO 2 Nanorods Annealed at Different Temperatures
Author(s) -
Sayahi Hani,
Hamadanian Masood,
Mohsenzadeh Farshid,
Aghapoor Kioumars,
Kiani Mohammad Ali
Publication year - 2015
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201400538
Subject(s) - nanorod , dye sensitized solar cell , chemistry , annealing (glass) , dielectric spectroscopy , hydrothermal circulation , chemical engineering , nanotechnology , spectroscopy , electrochemistry , composite material , materials science , electrode , physics , quantum mechanics , engineering , electrolyte
In this study, bulk TiO 2 nanorods are synthesized by hydrothermal method in order to be used in the dye‐sensitized solar cells (DSSCs). These nanorods are annealed at different temperatures and deposited electrophoretically. The influence of post heat treatment has been thoroughly investigated on fabricated DSSCs using electrochemical impedance spectroscopy (EIS). The results have revealed that the diameter, size and density of the prepared bulk nanorods are function of annealing temperatures. Optimization of the prepared DSSCs has led to an improved efficiency (ca. 3.82%) under AM 1.5 simulated sunlight.