Influence of Iodide Concentration on the Efficiency and Stability of Dye‐Sensitized Solar Cell Containing Non‐Volatile Electrolyte | Zendy

Zhang Zhipan | Zendy; Ito Seigo | Zendy; Moser JacquesE. | Zendy; Zakeeruddin Shaik M. | Zendy; Grätzel Michael | Zendy

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Influence of Iodide Concentration on the Efficiency and Stability of Dye‐Sensitized Solar Cell Containing Non‐Volatile Electrolyte

Author(s) -

Zhang Zhipan,

Ito Seigo,

Moser JacquesE.,

Zakeeruddin Shaik M.,

Grätzel Michael

Publication year - 2009

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.200900199

Subject(s) - dye sensitized solar cell , electrolyte , iodide , chemistry , ruthenium , photocurrent , thermal stability , solar cell , carboxylate , iodine , inorganic chemistry , photochemistry , materials science , organic chemistry , electrode , optoelectronics , catalysis

Dye‐sensitized solar cells based on nanocrystalline TiO 2 have been fabricated with an amphiphilic ruthenium sensitizer NaRu(4‐carboxylic acid‐4′‐carboxylate)(4,4′‐dinonyl‐2,2′‐bipyridine)(NCS)2, coded as Z‐907Na, and a series of non‐volatile 3‐methoxyproprionitrile (MPN)‐based electrolytes with different concentration of 1‐methyl‐3‐propylimidazolium iodide (PMII). The short‐circuit photocurrent density increases with increasing iodide concentration until at 1.5 M practically quantitative dye regeneration is achieved as proved by time‐resolved laser experiments. Devices containing 1.0 M PMII electrolyte show excellent stability during long‐time thermal aging at 80 °C and under light soaking at 60 °C.

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