3 results about "Naphthalocyanine" patented technology

The inventive technology is directed to novel photoacoustic endoskeletal droplet compositions and methods of making the same. Specifically, the naphthalocyanine dye-loaded endoskeletal droplets having a solid hydrocarbon core surrounded by a fluorocarbon liquid, which can further be applied to photoacoustic imaging and sensing, as well as photothermal therapy.

The present disclosure relates to a modulator material layer comprising a polymer matrix formed of a plurality of cross-linked polymer molecules and a plurality of liquid droplets of liquid crystal within the polymer matrix. A planar macrocycle dye is dispersed within the plurality of liquid droplets of liquid crystal. The planar macrocycle dye can comprise one or more of a phthalocyanine, a porphyrin, a naphthalocyanine, a metallophthalocyanine, a metalloporphyrin, or a metallo-naphthalocyanine.

The invention discloses an imide metal naphthyanine derivative as well as preparation and photovoltaic application thereof, and belongs to the field of perovskite solar photovoltaics. The metal naphthyanine derivative forms a larger pi conjugated system, and the pi-pi interaction between molecules can be enhanced by the extension of pi conjugation, so that the charge transfer capability is favorably improved. According to the Lewis acid-alkali theory, molecules containing electron-donating atoms such as nitrogen and oxygen can be used as a passivator to reduce defects in perovskite. According to the invention, an imide group with multiple coordination sites is introduced to the periphery of naphthyanine, and the obtained derivative is used as a passivator to be added into a perovskite thin film in a bulk phase doping manner, so that not only can non-coordinated ions (such as Pb < 2 + >) be efficiently passivated, but also the perovskite crystallization process can be regulated and controlled. Finally, the method is beneficial for forming a perovskite active layer with better crystallinity, larger grain size and more uniform morphology, and higher photoelectric conversion efficiency is obtained.