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TiO 2 Anatase Solutions for Electron Transporting Layers in Organic Photovoltaic Cells
Author(s) -
El Kass Moustafa,
Brohan Luc,
Gautier Nicolas,
Béchu Solène,
David Céline,
Lemaitre Noëlla,
Berson Solenn,
RichardPlouet Mireille
Publication year - 2017
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.201700306
Subject(s) - anatase , propylene carbonate , materials science , chemical engineering , dispersant , photocatalysis , heterojunction , titanium , polymer solar cell , polymer , organic chemistry , optoelectronics , chemistry , optics , composite material , catalysis , dispersion (optics) , physics , electrode , engineering , metallurgy , electrochemistry
Reflux of a solution of [Ti 8 O 12 (H 2 O) 24 ]Cl 8 ⋅HCl ⋅ 7 H 2 O as titanium precursor at 120 °C for 24 h leads to a transparent colloidal solution of nanosized crystallized anatase TiO 2 . The adjustment of the particle size and composition of the dispersant is monitored through the initial water content while controlling the conversion of propylene carbonate into propylene glycol during reflux. The solutions were processed as thin films to produce electron transporting layers in hybrid bulk heterojunction solar cells, by using a blend of P3HT:PCBM polymers as absorbers, in inverted architectures. The solutions obtained by reflux were demonstrated to produce suitable electron transporting layers.