Isobutrin from Butea Monosperma (Flame of the Forest): A Promising New Natural Sensitizer Belonging to Chalcone Class

Autor:	Ashish A. Chinchansure, Vivek Dhas, Roshan R. Kulkarni, Partha Hazra, Swati P. Joshi, Satishchandra Ogale, Shruti Agarkar
Rok vydání:	2011
Předmět:	Chalcone biology biology.organism_classification Photochemistry Pigment chemistry.chemical_compound Dye-sensitized solar cell Chalcones Butea chemistry visual_art visual_art.visual_art_medium Organic chemistry General Materials Science Chelation Thermal stability Electronics Chelating Agents
Zdroj:	ACS Applied Materials & Interfaces. 3:2440-2444
ISSN:	1944-8252 1944-8244
DOI:	10.1021/am200341y
Popis:	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-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 °C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5baac4683ef1002acaf3c6ab6e2350c https://doi.org/10.1021/am200341y Zobrazit plný text záznamu