Designing LiBOB-based electrolyte for dye-sensitised solar cell
Document Type
Article
Publication Date
8-24-2022
Abstract
Liquid electrolyte based on lithium bis(oxalato)borate (LiBOB) polymer was prepared for the application in dye-sensitised solar cells (DSSCs). The electrolyte was optimised with varying content of 4-tert-butylpyridine (4TBP), guanidinium thiocyanate (GuCN), iodine and 1-propyl-3-methylimidazolium iodide (PMII) ionic liquid. Better cell performance was observed in solar cell devices with LiBOB-based electrolyte consisting of 36 wt.% of (I-2 + 4TBP) and PMII ionic liquid. Such devices produce a maximum efficiency of 6.37% although with slightly lower fill factor. The better performance of DSSC with PMII inclusion in the electrolyte is attributed to the better ionic conductivity of the electrolyte. On the contrary, the addition of GuCN did not boost the performance of the cell. The effect and significance of the additives were explored in this work.
Keywords
Dye-sensitised solar cells, LiBOB, Ionic liquid, Guanidinium thiocyanate, Liquid electrolyte
Divisions
PHYSICS
Funders
None
Publication Title
Materials Technology
Volume
37
Issue
10
Publisher
TAYLOR & FRANCIS LTD
Publisher Location
2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND