Physical and Materials Chemistry Division, National Chemical Laboratory (Council of Scientific and Industrial Research), Pune 411008, India.
ACS Appl Mater Interfaces. 2011 Jul;3(7):2440-4. doi: 10.1021/am200341y. Epub 2011 Jun 9.
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.
在这项工作中，引入了一种环保敏化剂“异丁基黄烷酮”，它是从金缕梅科植物（俗称“火焰森林”）的花朵中提取的。它是一种属于查尔酮类的亮黄色颜料，并被研究作为光电应用的敏化剂。观察到这种染料与 Ti 离子螯合会在可见区域产生强的染料-TiO(2)电荷转移（DTCT）带。这种 Ti-异丁基黄烷酮配合物是稳定的、不可逆的，并且使用 Benesi-Hildebrand 图研究了其形成过程。获得了 Ti-异丁基黄烷酮配合物的 HOMO-LUMO 态位置以及与 TiO(2)的相应能带排列。此外，热稳定性测试表明，异丁基黄烷酮在 100°C 以上稳定。
