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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 8
BKCSDE 32(8)
August 20, 2011 

Synthesis of novel quinacridone dyes and their photovoltaic performances in organic dye-sensitized solar cells
Chun Sakong, Se Hun Kim, Sim Bum Yuk, Jeong Yun Kim, Se Woong Park, Min Jae Ko, Jae Pil Kim*
Quinacridone chromophore, Organic dyes, Dye-sensitized solar cell, Intramolecular charge transfer, Thiophene, Benzene
Two novel quinacridone (QNC) dyes with thiophene or benzene-conjugated bridge and cyanoacrylic acid acceptor were first designed and synthesized for use in dye-sensitized solar cells (DSSCs). The absorption spectra, electrochemical and photovoltaic properties of these dyes were investigated. Under simulated AM 1.5G irradiation conditions, the solar cell based on the quinacridone dye containing thiophene as a bridge unit had a short-circuit photocurrent density of 8.51 mA·cm−2, an open-circuit voltage of 643.6 mV, and a fill factor of 0.70, corresponding to an overall conversion efficiency of 3.86%.
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