Open AccessImproved photovoltaic performance of dye‐sensitized solar cells using dual post treatment based on TiCl 4 and urea solution
Author(s) -
Bolag Altan,
Wang Qiaoling,
Liu Linan,
Jamiyansuren Tumenkhuslen,
Tumurpurev Ugtakhbayar,
Tuvjargal Norovsambuu,
Bao Tana,
Ning Jun,
Alata Hexig,
Tegus Ojiyed
Publication year - 2021
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mna2.12037
Subject(s) - photovoltaic system , urea , materials science , dual (grammatical number) , dye sensitized solar cell , chemical engineering , optoelectronics , chemistry , organic chemistry , electrical engineering , engineering , art , literature , electrode , electrolyte
An effective and efficient photovoltaic performance is significantly affected by the interface between different constituents of dye sensitized solar cells (DSSC). A novel dual post treatment of TiCl 4 and urea solutions on different layers of TiO 2 electrode is addressed and the TiO 2 particle morphology, dye‐adsorption amount on the TiO 2 electrode and the photovoltaic performance of the DSSC based on those electrodes are characterised in this work. TiCl 4 treatment can form more binding site on TiO 2 particles and urea treatment structures a thin layer of g‐C 3 N 4 on the surface of TiO 2 particles. This strategy can not only effectively increase the dye‐adsorption for light‐harvesting, but also facilitate the electron transfer through inhibiting the charge recombination between TiO 2 and electrolyte, and moreover, it provides excess electrons for the photoanodes. The DSSC fabricated from TiO 2 electrode processed with urea treatment on the sixth layer exhibited the highest power conversion efficiency of 8.94% with a short current density J sc of 24.09 mA cm –2 , an open circuit voltage V oc of 583 mV and a fill factor of 63.8.