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Micrometer wire made from perylene bisimide derivatives and application of micrometer wire

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, low sensitivity of gas sensitivity, and limited application

Inactive Publication Date: 2013-07-17
HENAN UNIVERSITY
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  • 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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  • Micrometer wire made from perylene bisimide derivatives and application of micrometer wire
  • Micrometer wire made from perylene bisimide derivatives and application of micrometer wire
  • Micrometer wire made from perylene bisimide derivatives and application of micrometer wire

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation method of described perylene imide derivatives:

[0015] 1) N, N' - Dissolve bis(3,7-dimethyloctyl)perylene-1,7-dibromo-3,4:9,10-perylenediimide (0.50 g, 0.6 mmol) with 0.81 g cuprous hydride 25mL N, N' -Dimethylformamide, stirred at 150 oC for 6 hours under nitrogen protection, then added 150 mL of water, stirred overnight, filtered with suction, dried, and separated on a silica gel column (eluent: chloroform) to obtain 0.35 g N, N' -Bis(3,7-dimethyloctyl)perylene-1,7-dicyano-3,4:9,10-perylenediimide (PTCDI-CN 2 C 10 ), the yield was 81.2%. 1 H NMR (CDCl 3 ): δ 9.70 (d, J = 8.0 Hz, 2H), 8.98 (s, 2H), 8.94 (d, J = 8.0 Hz, 2H), 4.27 (t, J =10.8 Hz, 4H), 1.56-0.86 (m, 38H). MALDI-MS: 720.9 (calcd.721.9). Anal. Calcd for C 46 h 48 N 4 o 4 : C, 76.64; H, 6.71; N, 7.77; Found: C, 75.85; H, 6.72; N, 8.12.

[0016] 2) 1,6,7,10-tetrachloro-3,4,9,10-perylenetetracarboxylic dianhydride (0.60 g, 1.14 mmol) was dissolved in 25 mL with 2.0 g pot...

Embodiment 2

[0018] Preparation method of micro- and nanowires based on the above-mentioned peryleneimide derivatives:

[0019] 1) Add 0.3 mL of PTCDI-CN 2 C 10 Chloroform solution (1 mg.mL -1 ) into a weighing bottle with a capacity of 10 mL, then add 0.9 mL of chloroform and 1.8 mL of methanol, shake for 10 minutes and let 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 0.4-2 μm .

[0020] 2) Add 0.4 mL PTCDI-Cl 4 C 10 Chloroform solution (1 mg.mL -1 ) into a weighing bottle with a capacity of 10 mL, then add 0.1 mL of chloroform and 3.0 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 .

Embodiment 3

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

[0023] 1) Put PTCDI-CN 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-CN 2 C 10 The detection electrode of the gas sensor.

[0024] Put the finished detection electrode into a sealed vacuum metal chamber 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-CN of the vacuum system 2 C 10 resistance (R 0 ), followed by injecting 2 μL of hydra...

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Abstract

The invention provides two biological resistive gas sensors made from perylene bisimide derivatives and a method for manufacturing the biological resistive gas sensors. Perylene of the biological resistive gas sensors contains different substituting groups. Source regions and drain regions of the sensors are made from elementary gold; channel regions of the sensors comprise single micrometer wires or nanowires made from two types of perylene bisimide derivatives; and gate dielectric layers of the sensors are made from silicon and silicon dioxide. The biological gas sensors made from the two types of perylene bisimide derivatives are high in sensitivity when in hydrazine hydrate atmosphere, and variation of the sensitivity of each sensor is closely related to molecular structures. The biological resistive gas sensors and the method have the advantages that the hydrazine hydrate atmosphere can be efficiently and quickly detected, the sensors are simple in structure and small in size, and are portable, and the biological resistive gas sensors and the method have a high application prospect in amine gas detection.

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 detect...

Claims

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Application Information

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IPC IPC(8): C07D471/06B82Y15/00B82Y40/00G01N27/04
Inventor 黄永伟李春丽王俊超张卫光李慧
Owner HENAN UNIVERSITY
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