Method for making same dye molecule emit light with different colors by substrate induction

Abstract

The invention belongs to fluorochrome molecular luminescence domain, concretely relates to a method for getting identical dye molecule of the identical base emit fluorescent lights with different colors by constructing different structural surfaces of backing materials and accordingly introducing coherent conditions of organic light-emitting molecule and oligomer light-emitting molecule. The said method includes the following steps: selecting inorganic background or polymeric background and performing treatment for substrate surface; constructing surfaces with microstructure by layered self-packaging, vapour deposition, LB film technology, nano autogram or stamping-cure selective elution technique for the treated background; depositing film of identical dye molecule on inorganic background or polymer background of micro-structural surface with vacuum degree of 1*10-4-5*10-4Pa and electric current of 5-10A; agitated by ultraviolet light, fluorescent lights with different colors can be observed on molecular surface of identical dye by fluorescence spectrometer or fluorescence microscope.

Description

technical field [0001] The invention belongs to the field of molecular luminescence of fluorescent dyes, and specifically relates to inducing the aggregation state of organic light-emitting molecules and oligomer light-emitting molecules by constructing different microstructure surfaces of substrate materials, so that the same dye molecule on the same substrate emits different colors of fluorescence Methods. Background technique [0002] It has been reported in the literature that two or more different dye molecules need to be introduced in order to achieve a fluorescent patterned structure. For example, T. Hammond et al. used selective adsorption to construct different fluorescent patterns. First, the surface of the gold substrate was patterned by microcontact printing and self-assembly methods, so that the surface of the substrate had different functional groups, and then assembled layer by layer. The (Layer-by-Layer) method selectively adsorbs different dye molecules to ...

AI Technical Summary

Problems solved by technology

However, the different emission colors of these aggregates cannot be tuned during device fabrication experiments, especially on solid surfaces.

Usually wasted or not used

For example, quinacridone and its derivatives (QA) (structure shown in A) in the construction process of the device, the red fluorescence of the aggregate film is only obtained by organic evaporation, and the strong green fluorescence of the monomer material is not For example, pyrazolene (ANP) usually exists in the form of a trimer in a solid film (the structural formula is shown in B), and the adjacent three pyrazolene molecules rely on the two pyrazole Nitrogen is combined with hydrogen bonds to emit green fluorescence; and the brighter blue light emitted by the monomer pyrazolene is also unavailable in the aggregated state.

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