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Solid‐State Dye‐Sensitized Solar Cells Using a Novel Class of Ullazine Dyes as Sensitizers
Author(s) -
Dualeh Amalie,
HumphryBaker Robin,
Delcamp Jared Heath,
Nazeeruddin Mohammad Khaja,
Grätzel Michael
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201200701
Subject(s) - triphenylamine , dye sensitized solar cell , materials science , photovoltaic system , energy conversion efficiency , solid state , photochemistry , organic dye , quasi solid , optoelectronics , chemical engineering , nanotechnology , electrode , chemistry , engineering , electrolyte , ecology , biology
Abstract Here we present the photovoltaic performance of solid‐state dye‐sensitized solar cells (DSCs) using a series of ullazine‐based metal‐free organic sensitizers and spiro‐MeOTAD as a hole‐transport material. A maximum of 4.95% power conversion efficiency measured under standard AM 1.5G illumination (100 mW cm −2 ) was achieved with the best performing ullazine dye, and was further improved to 5.40% through co‐sensitization with the triphenylamine‐based organic sensitizer, D35. This study investigates the effect of the molecular structure of the ullazine sensitizer on the performance in solid‐state DSCs.