Abstract
A series of indeno[2,1-b]thiophene-containing organic dyes (IDT1–IDT5) have been synthesized, and their UV/Vis spectra extend beyond 700 nm. These dyes were employed as sensitizers for dye-sensitized solar cells (DSSCs). Among them, dyes IDT3–IDT5 with a thiophene unit conjugated with an anchor have better light harvesting ability and higher J SC values. Dye aggregation contributes substantially to the photocurrent in the near infrared region. The dye IDT5, with chenodeoxycholic acid (CDCA) as the co-adsorbent, has the highest power conversion efficiency (5.06 %) under AM 1.5G simulated sunlight irradiation, which is 68 % of the standard device based on N719 dye.
Original language | English |
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Pages (from-to) | 801-811 |
Number of pages | 11 |
Journal | Asian Journal of Organic Chemistry |
Volume | 5 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2016 Jun 1 |
Keywords
- aggregation
- dye-sensitized solar cells
- heterocycles
- indeno[2,1-b]thiophene
- sensitizers
ASJC Scopus subject areas
- Organic Chemistry