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Perylene imide derivative micron or nano wires and application thereof

A perylene imide and derivative technology, applied in the field of efficient and fast detection of hydrazine hydrate atmosphere, can solve the problems of unfavorable miniaturization development, unexplained molecular structure sensing performance, and efficient and fast detection of unfavorable gases

Inactive Publication Date: 2013-07-10
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the research on gas sensor of perylene imide derivatives has made great progress in recent years, its performance research still has the following deficiencies: 1) The current research work is mainly focused on the fluorescent gas sensor that depends on its optical property change, while The research on resistive gas sensor based on its semiconductor properties is relatively lagging behind, which is not conducive to its miniaturization development, and is not conducive to efficient and fast gas detection; 2) The gas sensitivity is low, which limits its application in real life; 3) The molecular design of perylene imide derivatives used in the study of gas sensors is not systematic, and the relationship between molecular structures and their sensing properties has not been elucidated

Method used

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  • Perylene imide derivative micron or nano wires and application thereof
  • Perylene imide derivative micron or nano wires and application thereof
  • Perylene imide derivative micron or nano wires and application thereof

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Experimental program
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Effect test

Embodiment 1

[0017] The preparation method of described perylene imide derivatives:

[0018] 1) Dissolve 3,4,9,10-perylenetetracarboxylic dianhydride (0.60 g, 1.54 mmol) with 2.86 g potassium carbonate and 3.4 g potassium iodide into 35 mL N -Methylpyrrolidone, stirred at 80 oC for 1 hour under nitrogen protection, added 1-bromo-3,7-dimethyloctane (1.02 g, 4.61 mmol), continued the reaction for 2 hours, cooled to room temperature, and then added 300 mL of a mixed solvent of hydrochloric acid ( 2 M ) and methanol (volume ratio 1:3), stirred overnight, filtered with suction, dried, and separated on a silica gel column (eluent: chloroform) to obtain 0.73 g N, N' -Bis(3,7-dimethyloctyl)perylene-3,4,9,10-perylenediimide (PTCDI-C 10 ), the yield was 71.1%. 1 H NMR (CDCl 3 ): δ 8.63 (d, J = 8.0 Hz, 4H), 8.52 (d, J = 8.0 Hz, 4H), 4.22 (t, J = 8.8 Hz, 4H), 1.61-0.88 (m, 38H). MALDI-MS: 670.88 (calc’d.670.42). Anal. Calcd for C 44 h 50 N 2 o 4 : C, 78.77; H, 7.51; N, 4.18; Found: C,...

Embodiment 2

[0022] Preparation method of micro- and nanowires based on the above-mentioned peryleneimide derivatives:

[0023]1) Add 0.3 mLPTCDI-Br 2 C 10 Chloroform solution (1 mg.mL -1 ) into a weighing bottle with a capacity of 10 mL, then add 0.3 mL of chloroform and 2.4 mL of methanol, shake for 10 minutes and let it stand for 24 hours to obtain a brownish-red precipitate, which is characterized by a scanning electron microscope as a micron line with a diameter of 2-5 μm .

[0024] 2) Add 0.4 mL of TCDI-C 10 Chloroform solution (1 mg.mL -1 ) into a weighing bottle with a capacity of 10 mL, then add 1.1 mL of chloroform and 2.5 mL of methanol, shake for 10 minutes and let it stand for 12 hours to obtain a brownish-red precipitate, which is characterized by a scanning electron microscope as a micron line with a diameter of 1-3 μm .

[0025] 3) Add 0.35 mLPTCDI-BP 2 C 10 Chloroform solution (1 mg.mL -1 ) into a weighing bottle with a capacity of 10 mL, then add 0.65 mL of chlo...

Embodiment 3

[0027] Applications of micro- and nanowires based on the above-mentioned peryleneimide derivatives:

[0028] 1) PTCDI-Br 2 C 10 The micron wires are dispersed in methanol, drop-coated on the silicon wafer deposited with silicon dioxide, and after the solvent is evaporated and dried in the air, the 2-3 μm micron wires are selected as a mask, and the micron wires of 5 × 10 -5 In the Torr vacuum system, a gold layer of about 50 nm was deposited at a rate of 0.5 ? / s, and then the mask was removed to obtain PTCDI-Br 2 C 10 The detection electrode of the gas sensor.

[0029] Put the finished detection electrode into a sealed vacuum metal cavity with a volume of about 2 L, and the system is directly connected to the vacuum pump, and when the pressure of the vacuum system drops to 10 -4 Pa, connect the electrode to the Keithley 4200-SCS electrical detection system, and record the PTCDI-Br of the vacuum system 2 C 10 resistance (R 0 ), followed by injecting 2 μL of hydrazin...

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Abstract

The present invention provides resistance-type gas sensors of three perylene imide derivatives containing different substituents at perylene bays and a preparation method thereof. In a device, the material constituting a source region and a drain region is elemental gold; the material constituting a channel region is a single micron or nano wire of three perylene imide derivatives; and the material constituting a gate dielectric layer is silicon and silica. The gas sensors of three perylene imide derivatives provided by the present invention have high sensitivity under a hydrazine hydrate atmosphere, wherein variation of the sensitivity is closely related with molecular structures. The present invention has the advantages that: on the one hand, fast and efficient detection of a hydrazine hydrate atmosphere is achieved, on the other hand, the structure is simple, size is small, and the device is easy to carry and has a broad application prospect in detection of amine gases.

Description

technical field [0001] The invention relates to an organic resistive gas sensor, which is especially suitable for efficient and rapid detection of hydrazine hydrate atmosphere. Background technique [0002] In recent years, with the continuous development of industrial production and the improvement of people's living standards, environmental problems have become increasingly prominent. Combustible gas combustion and toxic gas leakage incidents have been reported from time to time, and environmental quality and public health issues have aroused widespread concern in society. In view of this, the development and development of gas sensors with excellent performance has become the primary task of relevant researchers. Especially in recent years, the continuous development and progress of nanomaterials and technologies have greatly promoted the preparation and application of new gas sensors. Gas sensors with nanostructures that have been developed so far can be used to detec...

Claims

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Application Information

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IPC IPC(8): C07D471/06B82Y15/00B82Y40/00G01N27/04
Inventor 黄永伟付丽娜刘英杰张磊邱娜
Owner HENAN UNIVERSITY
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