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

A technology of substrates and dyes, applied in the field of fluorescent dye molecules, can solve the problems of waste, not being used, and unable to be regulated.

Inactive Publication Date: 2006-10-11
JILIN UNIV
View PDF9 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for making same dye molecule emit light with different colors by substrate induction
  • Method for making same dye molecule emit light with different colors by substrate induction
  • Method for making same dye molecule emit light with different colors by substrate induction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Take 10ml of PDMS (Silicone elastomer KIT 184, Daw corning, KIT 184 type silicone rubber, Dow Corning Company) prepolymer, add 500mg of polymerization initiator, stir well, let it stand to remove air bubbles, then pour it into a plastic petri dish and let it stand for 2 hours, and then placed in an oven at 70°C for heating and polymerization for 6 hours. Cut out 1 cm x 2 cm slices (thickness 1.5 mm).

[0068] Take the PDMS sheet and the quartz sheet with a thickness of 1.5mm of 1cm×2cm respectively, and vapor-deposit quinacridone with a thickness of 5nm-500nm. Under the excitation of 495nm incident light, the obtained fluorescence spectrum is shown in Fig. 1(a). The peak on quartz is 580nm, and the corresponding fluorescent color is orange; the peak on PDMS is 537nm, and the corresponding fluorescent color is green. That is, the same dye molecule emits different colors of fluorescence under the same conditions due to different substrate materials.

[0069] Similarly,...

Embodiment 2

[0071] Alkyl silylating reagents (Octadecyltrimethoxysilane, tech., 90%, Sigma-aldrich.inc) were assembled on the surface of single crystal silicon by liquid phase assembly (5 μg / ml toluene solution of alkyl silylating reagents, soaked for 2 h). Fluorosilylating reagent ((Heptadecafluoro-1, 1.2, 2-tetrahydradecyl) triethoxysilane, C 16 h 19 f 17 o 3 Si, ABCR GmbH&Co.KG) was assembled onto the surface of single crystal silicon (5 μl of fluorosilylating reagent was added dropwise, the pressure was maintained at 0.012±0.002Mpa, and the deposition was carried out for 30min).

[0072] The monocrystalline silicon treated above was taken, and ANP with a thickness of 5 nm was vapor-deposited. Fluorescence spectrophotometer tests show that the fluorine-modified single crystal silicon emits blue (418nm) fluorescence, while the alkyl-modified single crystal silicon emits green (478nm) fluorescence (such as Figure 4 ).

[0073] Implementation column 3:

[0074] Controlling the liqu...

Embodiment 4

[0078] Extract tar acid (purity > 99%, C 23 h 47 COOH (purchased from Lardan Fine Chemicals, Malmo, Sweden) was vapor-deposited with 5 nm of pyrazolene on a monolayer film.

[0079] Preparation parameters of LB film: V 0 = 20 μl, C 1 =1 mg / ml, CHCl 3 solution, t 1 = 30min,

[0080] S 1 =15cm 2 / min, P=22mN / m, t 2 = 30min, S 2 =2mm / min

[0081] The aggregation state of pyrazolene observed by atomic force microscope Tapping mode is shown in Figure 6. Figure a shows the aggregation state of pyrazole anthracene on the freshly peeled mica, which is irregularly aggregated, and the light-colored part is pyrazole anthracene; Figure b It is the aggregation state of pyrazolene on the single-layer film of tar acid extracted by LB technology on the mica sheet. This example proves that the single-layer film structure can induce different aggregation states of dye molecules with a thickness of several nanometers to tens of nanometers, so that regular or irregular pa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to view more

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K9/00H05B33/14
Inventor 吕男胡伟郝娟媛迟力峰
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap