Influence of Structural Variations in Push–Pull Zinc Porphyrins on Photovoltaic Performance of Dye‐Sensitized Solar Cells | Zendy

Yi Chenyi | Zendy; Giordano Fabrizio | Zendy; CeveyHa NgocLe | Zendy; Tsao Hoi Nok | Zendy; Zakeeruddin Shaik M. | Zendy; Grätzel Michael | Zendy

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Influence of Structural Variations in Push–Pull Zinc Porphyrins on Photovoltaic Performance of Dye‐Sensitized Solar Cells

Author(s) -

Yi Chenyi,

Giordano Fabrizio,

CeveyHa NgocLe,

Tsao Hoi Nok,

Zakeeruddin Shaik M.,

Grätzel Michael

Publication year - 2014

Publication title -

chemsuschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.412

H-Index - 157

eISSN - 1864-564X

pISSN - 1864-5631

DOI - 10.1002/cssc.201301271

Subject(s) - dye sensitized solar cell , energy conversion efficiency , photovoltaic system , zinc , mesoporous material , quasi solid , porphyrin , electrolyte , materials science , photochemistry , solar cell , chemical engineering , cobalt , redox , chemistry , inorganic chemistry , electrode , optoelectronics , catalysis , organic chemistry , ecology , metallurgy , engineering , biology

We designed and synthesized two new zinc porphyrin dyes for dye‐sensitized solar cells (DSCs). Subtle molecular structural variation in the dyes significantly influenced the performance of the DSC devices. By utilizing these dyes in combination with a cobalt‐based redox electrolyte using a photoanode made of mesoporous TiO 2 , we achieved a power conversion efficiency (PCE) of up to 12.0 % under AM 1.5 G (100 mW cm −2 ) simulated solar light. Moreover, we obtained a high PCE of 6.4 % for solid‐state dye‐sensitized solar cells by using 2,2′,7,7′‐tetrakis‐( N , N ‐di‐ p ‐methoxyphenylamine)‐9,9′‐spirobifluorene as a hole‐transporting material.

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