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Title: Isobutrin from Butea Monosperma (Flame of the Forest): A Promising New Natural Sensitizer Belonging to Chalcone Class
Authors: Agarkar, Shruti
Kulkarni, Roshan R.
Dhas, Vivek V.
Chinchansure, Ashish A.
Joshi, Swati P.
Dept. of Chemistry
Keywords: Butea Monosperma
Natural Sensitizer Belonging
Ecofriendly sensitizer
Ti-isobutrin chelate
Issue Date: Jul-2011
Publisher: American Chemical Society
Citation: ACS Applied Materials and Interfaces, 3(7), 2440-2444.
Abstract: In this work, “isobutrin”, an ecofriendly sensitizer that is extracted from Butea monosperma (commonly known as “Flame of the Forest”) flowers, is introduced. It is a bright yellow pigment belonging to the chalcone class and is examined as a sensitizer for optoelectronic applications. It is observed that chelation of this dye with Ti ions results into a strong dye-TiO2 charge transfer (DTCT) band in the visible region. This Ti-Isobutrin chelate is stable, irreversible and its formation is studied using Benesi–Hildebrand plot. The locations of HOMO–LUMO states of the Ti-isobutrin chelate and the corresponding band alignment with TiO2 are obtained. Also, a thermal stability test revealed that isobutrin is stable above 100 °C.
ISSN: 1944-8244
Appears in Collections:JOURNAL ARTICLES

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