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Synthesis and Characterization of Phenothiazine‐Based Platinum(II)–Acetylide Photosensitizers for Efficient Dye‐Sensitized Solar Cells
Author(s) -
Siu ChiHo,
Lee Lawrence Tien Lin,
Yiu SzeChun,
Ho PoYu,
Zhou Panwang,
Ho CheukLam,
Chen Tao,
Liu Jianyong,
Han Keli,
Wong WaiYeung
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503828
Subject(s) - acetylide , dye sensitized solar cell , photocurrent , phenothiazine , platinum , photochemistry , electrochemistry , density functional theory , energy conversion efficiency , solar cell , short circuit , chemistry , materials science , optoelectronics , electrolyte , organic chemistry , electrode , catalysis , computational chemistry , voltage , medicine , physics , quantum mechanics , pharmacology
Three new unsymmetrical phenothiazine‐based platinum(II) bis(acetylide) complexes PT1 – PT3 with different electron‐donating arylacetylide ligands were synthesized and characterized. Their photophysical, electrochemical, and photovoltaic properties have been fully investigated and the density functional theory (DFT) calculations have been carried out. Under AM 1.5 irradiation (100 mW cm −2 ), the PT1 ‐based dye‐sensitized solar cell (DSSC) device exhibited an attractive power conversion efficiency ( η ) up to 5.78 %, with a short‐circuit photocurrent density ( J sc ) of 10.98 mA cm −2 , an open‐circuit photovoltage ( V oc ) of 0.738 V, and a fill factor ( ff ) of 0.713. These findings provide strong evidence that platinum–acetylide complexes have great potential as promising photosensitizers in DSSC applications.