Functional Dyes, and Some Hi‐Tech Applications

Abstract

An overview of the recent developments in functional dyes, which are useful for hi-tech applications for those based on optoelectronics, such as dye sensitized solar cells, photochromic dyes and biomedical applications, such as photodynamic therapy for the treatment of cancer and fluorescent sensors is presented.

Characterization and charge transfer properties of organic BODIPY dyes integrated in TiO2nanotube based dye-sensitized solar cells

“…The molecular design of the organic dyes, by substitution on the chromophore chemical structure, allows a control of their photo-physical, electrochemical and stereo-chemical properties. 15,16 Many different novel metal-free dyes have been synthesized and tested in DSCs such as porphyrin, 17 perylene, 18 indoline, 19 coumarin 20 and polythyophene 21,22 sensitizers. One of these sensitizers, boron dipyrromethene (BODIPY) uorophore is easy to synthesize, stable and present good solubility.…”

Current Trends in Materials for Dye Sensitized Solar Cells

“…Inorganic dyes comprise polypyridyl metal complexes of ruthenium and osmium, metal porphyrin, phthalocyanine and inorganic quantum dots, while organic dyes include natural and synthetic organic dyes [10]. Up to now, polypyridyl-ruthenium complexes have the best photovoltaic performance regarding both conversion and chemical stability.…”

Dye Sensitized Solar Cells Based on Different Solvents: Comparative Study

“…Extensively large amount of work has been done on dye molecule [5][6][7], semiconductor TiO 2 electrodes [8][9][10], counter electrodes [11] and electrolytes [12,13] to improve the DSSCs efficiency and stability. The design of organic dyes (i.e., geometric structures, molecular orbital energy, absorption profiles, and aggregation states of the dye) [14,15], reduction of the rate of charge recombination and the lack of electron donating moiety in the oxidized organic dye have also been proposed to have a great influence on output of DSSCs [16,17]. Thus, there is an intense need to design the molecular structure of organic dye or dye solvents to prevent dye aggregation (Figures 1 and 2).…”