Steady-state spectroscopy and ultrafast dynamics of flavylium derivatives in the red and near-infrared spectral region

• Main Authors: Ismail, Ahmed H., Khyasudeen, M. Faisal, Husband, John, Baqi, Younis, Abou-Zied, Osama K.
• Other Authors: Asian Spectroscopy Conference 2020
• Format: Conference or Workshop Item
• Language: English
• Published: 2020
• Subjects: Science::Chemistry; Flavylium; Near-infrared
• Online Access: https://hdl.handle.net/10356/144254
• Institution: Nanyang Technological University

In an effort to enhance the absorption and fluorescence of flavylium in the red and near-infrared (NIR) spectral region, we synthesized a 2′-hydroxyflavylium derivative (FLV-OH) with a rigid electron donating julolidine group attached to position 7 and examined its ground and excited states spectroscopy by absorption, fluorescence, ultrafast dynamics, and by density functional theory (DFT). The current results indicate that FLV-OH has spectroscopic properties that make it suitable for many applications such as a potential light harvesting dye in solar cell.