@article { ISI:000293196800041,
	title = {Isobutrin from butea monosperma (flame of the forest): a promising new natural sensitizer belonging to chalcone class},
	journal = {ACS Applied Materials \& Interfaces},
	volume = {3},
	number = {7},
	year = {2011},
	month = {JUL},
	pages = {2440-2444},
	publisher = {AMER CHEMICAL SOC},
	type = {Article},
	address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},
	abstract = {<p>In this work, {\textquoteleft}{\textquoteleft}isobutrin{\textquoteright}{\textquoteright}, an ecofriendly sensitizer that is extracted from Butea monosperma (commonly known as {\textquoteleft}{\textquoteleft}Flame of the Forest{\textquoteright}{\textquoteright}) 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-TiO(2) 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 TiO(2) are obtained. Also, a thermal stability test revealed that isobutrin is stable above 100 degrees C.</p>},
	keywords = {Butea monosperma, chalcone, dye-sensitized solar cell, isobutrin, sensitizer, TiO(2)},
	issn = {1944-8244},
	doi = {10.1021/am200341y},
	author = {Agarkar, Shruti A. and Kulkarni, Roshan R. and Dhas, Vivek V. and Chinchansure, Ashish A. and Hazra, Partha and Joshi, Swati P. and Ogale, Satishchandra B.}
}
