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Photovoltaic Performance of Porphyrin‐Based Dye‐Sensitized Solar Cells with Binary Ionic Liquid Electrolytes
Author(s) -
Bahadar Khan Sher,
Yadav Pankaj Kumar,
Decoppet Jean-David,
Yi Chenyi,
Al-Ghamdi Mohammed S. A.,
Alhogbi Basma G.,
Asiri Abdullah M.,
Zakeeruddin Shaik M.,
Grätzel Michael
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000092
Subject(s) - dye sensitized solar cell , ionic liquid , photocurrent , imide , materials science , electrolyte , energy conversion efficiency , short circuit , open circuit voltage , porphyrin , photovoltaic system , photochemistry , electrode , chemistry , optoelectronics , polymer chemistry , organic chemistry , catalysis , quantum mechanics , voltage , biology , ecology , physics
Herein, green porphyrin sensitizer Y350‐based dye‐sensitized solar cells (DSCs) with binary ionic liquid–based electrolytes are studied, which are a mixture of 1‐methyl‐3‐propyl‐imidazolium iodide and 1‐methyl‐1‐butylpyrrolidinium bis(trifluromethylsulfonyl) ‐imide, 1‐butylpyridinium bis(trifluromethylsulfonyl)imide, 1‐methyl‐3‐ethylimidazolium bis(trifluromethylsulfonyl)imide, or 1‐methyl‐3‐ethylimidazolium tetracyanoborate. The best semitransparent green DSC device exhibits a short‐circuit photocurrent density of 9.1 mA cm −2 , an open‐circuit photovoltage of 727 mV, and a fill factor of 70%, corresponding to an overall power conversion efficiency (PCE) of 4.9% under standard AM 1.5G illuminations at 100 mW cm −2 . The PCE increases to 6.1% with opaque films containing larger light‐scattering TiO 2 particles.