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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 1
BKCSDE 31(1)
January 20, 2010 

Novel Organic Sensitizers with a Quinoline Unit for Efficient Dye-sensitized Solar Cells
Hyeju Choi, Hyunbong Choi, Sanghyun Paek, Kihyung Song, Moon sung Kang, Jaejung Ko*
Quinoline, Dye, Bithiophene, Dye-sensitized solar cell
Three organic sensitizers, JK-128, JK-129, and JK-130 containing quinoline unit are designed and synthesized. Under standard global AM 1.5 solar condition, the JK-130 sensitized solar cell gave a short circuit photocurrent density of 11.52 mA cm-2, an open circuit voltage of 0.70 V, and a fill factor of 0.75, corresponding to an overall conversion efficiency of 6.07%. We found that the η of JK-130 was higher than those of other two cells due to the higher photocurrent. The higher Jsc value is attributed to the broad and intense absorption spectrum of JK-130.
125 - 132
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