Article (Scientific journals)
Plasticized I2-free polysiloxane ionic conductors as electrolytes for stable and flexible solid-state dye-sensitized solar cells
Bharwal, Anil Kumar; Salian, Girish D.; Manceriu, Laura et al.
2021In Applied Surface Science Advances, 5, p. 100120
Peer reviewed
 

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Keywords :
I-free polymer electrolytes; Visible light absorption; TiO nanotubes; Electron lifetime
Abstract :
[en] For practical applications, flexible solid-state dye-sensitized solar cells (ss-DSSCs) with high photovoltaic performance and stability are paramount. A novel iodine (I2)-free polysiloxane based highly conductive poly(ionic liquid), which acts as the lone charge transfer intermediate, is used for the first time as an electrolyte in flexible 1D TiO2 nanotube photoanodes (TiO2 NT) based ss-DSSCs. The I2-free polymer electrolyte plasticized with ethylene carbonate (EC) leads to a higher power conversion efficiency in DSSCs involving TiO2 NTs than the I2-based polymer electrolyte, mainly due to improved Voc and Jsc. Apart from overcoming the visible light absorption loss, this I2-free polymer electrolyte also reduces the charge recombination and thus leads to higher electron lifetime in DSSCs. The I2-free DSSCs also displayed long-term stability measured under ambient and accelerated stability testing. The improvement is also due to the effective pore infiltration into the large pores of TiO2 NT structure in ss-DSSCs.
Disciplines :
Chemistry
Author, co-author :
Bharwal, Anil Kumar
Salian, Girish D.
Manceriu, Laura  ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Mahmoud, Abdelfattah  ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Alloin, Fannie
Iojoiu, Cristina
Djenizian, Thierry
Ruiz, Carmen M.
Pasquinelli, Marcel
Toupance, Thierry
Olivier, Celine
Duché, David
Simon, Jean-Jacques
Henrist, Catherine ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
More authors (4 more) Less
Language :
English
Title :
Plasticized I2-free polysiloxane ionic conductors as electrolytes for stable and flexible solid-state dye-sensitized solar cells
Publication date :
01 September 2021
Journal title :
Applied Surface Science Advances
ISSN :
2666-5239
Volume :
5
Pages :
100120
Peer reviewed :
Peer reviewed
Available on ORBi :
since 07 November 2021

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