材料科学
介孔材料
介孔二氧化硅
小角X射线散射
光谱学
吸收(声学)
荧光
猝灭(荧光)
散射
荧光光谱法
光化学
透射电子显微镜
光子学
化学工程
纳米技术
光电子学
化学
光学
有机化学
催化作用
复合材料
工程类
物理
量子力学
作者
Fabio Cucinotta,Benjamin P. Jarman,Calvin Caplan,Sharon J. Cooper,Helen J. Riggs,Jonathan Martinelli,Kristina Djanashvili,Emanuele La Mazza,Fausto Puntoriero
出处
期刊:ChemPhotoChem
[Wiley]
日期:2017-12-18
卷期号:2 (3): 196-206
被引量:12
标识
DOI:10.1002/cptc.201700144
摘要
Abstract This study presents two series of new host–guest chromophoric systems, where BODIPY dyes are organized into mesoporous silica. The dyes self‐assemble with surfactants to generate micellar templates that can direct the formation of the silica networks. The materials were characterized by means of small‐angle X‐ray scattering (SAXS) and transmission electron microscopy (TEM) to elucidate their structure, and by UV/Vis absorption spectroscopy to determine their optical properties. Dye‐loaded COK‐12 materials retain an ordered structure and exhibit a green fluorescence that slightly red‐shifts and undergoes quenching as the dye loading increases. A second system is based on MCM‐41 silica and works as a polychromatic antenna, where a high energy species forms within the template and drive excitation energy transfer in timescales down to 20 ps. Such systems show promising performances for the realization of photonic antennae, to be used as sensitizers for solar cells and photocatalytic devices.
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