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Anthryl molecular junction with photoelectric detection function and preparation method and application thereof

An anthracene-based molecular junction and anthracene-based molecule technology, which is applied in the field of molecular electronics, can solve problems such as less molecular photodetectors, and achieve the effects of short preparation time, stable growth of self-assembled molecular films, and simple operation.

Pending Publication Date: 2022-04-12
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As far as we know, very little research has been done on molecular photodetectors

Method used

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  • Anthryl molecular junction with photoelectric detection function and preparation method and application thereof
  • Anthryl molecular junction with photoelectric detection function and preparation method and application thereof
  • Anthryl molecular junction with photoelectric detection function and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: The anthracene-based molecular junction (ABP-SM) with photodetection function of this embodiment

[0032] in [Rh 2 (O 2 CCF 3 ) 4 ] is a Lewis acid, 9,10-bis(4-pyridyl)anthracene is a photosensitive molecule, and pyrazine is a pyridyl bidentate organic ligand.

[0033] The steps are as follows: at room temperature, place the gold substrate electrode in 0.1 mmol / L 4-mercaptopyridine ethanol solution and soak for 1 hour to prepare 4-mercaptopyridine SAMs. SAMs were rinsed with ethanol and washed with N 2 After purging and drying; it was transferred to 0.2 mmol / L rhodium trifluoroacetate dimer [Rh 2 (O 2 CCF 3 ) 4 ] ethanol solution, and soak for 1 hour at low temperature (2 (O 2 CCF 3 ) 4 ] soak in ethanol solution for 5 min, soak in pyrazine at room temperature for 5 min, rinse with ethanol after each soak and wash with N 2 After drying, the anthracene molecular junction (ABP-SM) can be obtained, and its structure is as follows figure 1 shown. ...

Embodiment 2

[0037] Example 2: Self-assembly of molecular junctions (ABP-SM) at different molar concentration ratios

[0038] The anthracene molecular junction (ABP-SM) with photodetection function in this embodiment. in [Rh 2 (O 2 CCF 3 ) 4 ] is a Lewis acid, 9,10-bis(4-pyridyl)anthracene is a photosensitive molecule, and pyrazine is a pyridyl bidentate organic ligand. Proceed as follows:

[0039] At room temperature, the gold substrate electrode was placed in 0.2mmol / L 4-mercaptopyridine ethanol solution and soaked for 1 hour to prepare 4-mercaptopyridine SAMs. SAMs were rinsed with ethanol and washed with N 2 After purging and drying; it was transferred to 0.6 mmol / L rhodium trifluoroacetate dimer [Rh 2 (O 2 CCF 3 ) 4 ] ethanol solution, and soak for 1 hour at low temperature (2 (O 2 CCF 3 ) 4 ] soak in ethanol solution for 5 min, soak in pyrazine at room temperature for 5 min, rinse with ethanol after each soak and wash with N 2 After drying, the anthracene molecular knot...

Embodiment 3

[0040] Example 3: Self-assembly of molecular junctions (ABP-SM) at different molar concentration ratios

[0041] The anthracene molecular junction (ABP-SM) with photodetection function in this embodiment. in [Rh 2 (O 2 CCF 3 ) 4 ] is a Lewis acid, 9,10-bis(4-pyridyl)anthracene is a photosensitive molecule, and pyrazine is a pyridyl bidentate organic ligand. Proceed as follows:

[0042] At room temperature, the gold substrate electrode was placed in 0.2mmol / L 4-mercaptopyridine ethanol solution and soaked for 1 hour to prepare 4-mercaptopyridine SAMs. SAMs were rinsed with ethanol and washed with N 2 After purging and drying; it was transferred to 1 mmol / L rhodium trifluoroacetate dimer [Rh 2 (O 2 CCF 3 ) 4 ] ethanol solution, and soak for 1 hour at low temperature (2 (O 2 CCF 3 ) 4 ] soak in ethanol solution for 5 min, soak in pyrazine at room temperature for 5 min, rinse with ethanol after each soak and wash with N 2 After drying, the anthracene molecular knot (...

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Abstract

The invention belongs to the technical field of molecular electronics, and discloses an anthryl molecular junction with a photoelectric detection function and a preparation method and application thereof. In the preparation process, the axial matching capacity is considered, and a rhodium acetate dimer complex [Rh2 (O2CCR3) 4] (R = H, F and CH3) is used as strong Lewis acid to react with a pyridyl bidentate organic ligand (L); meanwhile, photosensitive organic molecules are introduced into an Rh2-L molecular skeleton. A rhodium acetate dimer complex [Rh2 (O2CCR3) 4] complex and an organic ligand can easily form a stable adduct [Rh2 (mu-O2CCR3) 4L2], and by utilizing the advantage, the supramolecular junction with a photosensitive structural unit is successfully constructed on a gold electrode by adopting a step-by-step preparation method.

Description

technical field [0001] The invention belongs to the technical field of molecular electronics, and in particular relates to an anthracene-based molecular junction (ABP-SM) with photoelectric detection function, its preparation method and its application. Background technique [0002] Molecular electronics is proposed as a promising strategy to meet the technological demands of increasing miniaturization of conventional silicon-based electronic devices. Since the charge transport behavior of molecular junctions is closely related to the chemical structure of the molecule, the chemical structure determines the electronic configuration of the molecule and the electrode-molecule interaction. Therefore, the charge transport properties and functions of molecular junctions can be controlled by tuning the chemical structure of supramolecules. Based on this strategy, various molecular electronics have been developed, which utilize single molecules or monolithic molecules to integrate...

Claims

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Application Information

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IPC IPC(8): G01Q60/40C07F15/00C08G83/00C23C14/24C23C14/50C23C14/58
Inventor 黄昌庚杜雅琦卜冬蕾黄少铭
Owner GUANGDONG UNIV OF TECH
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