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K-(BEDT-TTF)*Cu(SCN)*nano rods array, method of producing the same and application of the same

A nanorod array and nanorod technology, which is applied in nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problem of few nano-sized materials and achieve the effect of simple preparation method

Inactive Publication Date: 2010-08-11
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there are many methods for preparing this type of organic charge transfer compound salt ([1] J.K.Jeszka, J.Ulanski and M.Kryszewski, Nature, 1981,298,390; K.Kawabata, K.Tanaka and M.Mizitani, Solid. State.Commun.1990, 74, 83; [2] D.Schweitzer, P.Bele, H.Brunner, E.Gogu, U.Haeberlen, I.Henning, T.Klutz, R.Swietlik and H.J.Keller, Z. Phys.B-Condensed Matter, 1987, 67, 489; [3] J.P.Farges, A.Brau and P.Dupuis, Solid.State.Commun.1985, 54, 531; [4] J.P.Farges, A.Brau and F .Alisahroui, Mol.Cryst.Liq.Cryst, 1990, 186, 143; [5] J.P.Farges, and A.Brau, in "Handbook of Advanced Electronic and Photonic Materials and Devices" edited by H.S.Nalwa (Academic Press, San Diego, 2001) p.329; [6] P.Batail, K.Boubekeur, M.Fourmigue, J.-C.P.Gabriel, Chem.Mater.(Review), 1998, 10, 3005), but few have Regularly shaped nanoscale materials

Method used

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  • K-(BEDT-TTF)*Cu(SCN)*nano rods array, method of producing the same and application of the same
  • K-(BEDT-TTF)*Cu(SCN)*nano rods array, method of producing the same and application of the same
  • K-(BEDT-TTF)*Cu(SCN)*nano rods array, method of producing the same and application of the same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, κ-(BEDT-TTF) 2 Cu(SCN) 2 Preparation of Nanorod Array I

[0023] Platinum sheet (area 2×0.5cm 2 ) was polished with soft sandpaper before use, ultrasonically washed in secondary water for 20 minutes, then ultrasonically washed with 0.1 mol / L dilute hydrochloric acid for 20 minutes, deionized water, acetone and ethanol were ultrasonically washed for 20 minutes, and dried. Add 3.5mg BEDT-TTF, 8mg CuSCN, 18mg 18-crown-6, and 8mg KSCN to 10ml of 1,1,2-trichloroethane, heat rapidly to 50°C and stir thoroughly for 3 hours, the solution turns orange-yellow turbid solution, and then naturally cooled to 30°C, and when the undissolved matter in the solution precipitated to the bottom of the electrolytic cell, insert a platinum sheet electrode (both cathode and anode are platinum sheets, and the area size is 2.0×0.5cm 2 ). Keep the temperature of the electrolyte at 30°C, pass through 100μA / cm 2 A constant current density, after 4 hours of reaction, a layer of bl...

Embodiment 2

[0025] Embodiment 2, κ-(BEDT-TTF) 2 Cu(SCN)2 Field Emission Properties of Nanorod Array I

[0026] κ-(BEDT-TTF) 2 Cu(SCN) 2 The field emission properties of nanorod array I are 5 × 10 -7 Tested under the condition of Pa, the area will be 0.06cm 2 κ-(BEDT-TTF) was grown 2 Cu(SCN) 2 The platinum sheet of the nanorod array I was pasted on a stainless steel disk with conductive adhesive as the negative electrode, and another stainless steel disk was used as the positive electrode, and the distance between the positive and negative electrodes was 100 μm. The test results are shown in Figure 2, κ-(BEDT-TTF) 2 Cu(SCN) 2 The turn-on voltage of nanorod array I is 11.57Vμm -1 (The turn-on voltage is defined as the sample produces 10μAcm -2 Voltage (E) required at current density (J). The illustration is the corresponding FN diagram (the FN diagram is ln(I / V 2 ) is a graph made on the ordinate (1 / V) as the abscissa, I: current, V: voltage). Through the formula ln(I / V 2 )=1 / V...

Embodiment 3

[0027] Embodiment 3, κ-(BEDT-TTF) 2 Cu(SCN) 2 Preparation method of nanorod array II:

[0028] Platinum sheets were polished with soft sandpaper before use, ultrasonically washed in secondary water for 20 minutes, then ultrasonically washed with 0.1 mol / L dilute hydrochloric acid for 20 minutes, deionized water, acetone and ethanol were ultrasonically washed for 20 minutes, and dried. Add 3.5mg BEDT-TTF, 8mg CuSCN, 18mg 18-crown-6, and 8mg KSCN to 10ml of 1,1,2-trichloroethane, heat rapidly to 50°C and stir thoroughly for 3 hours, the solution turns orange-yellow turbid solution, and then naturally cooled to 30°C, and when the undissolved matter in the solution precipitated to the bottom of the electrolytic cell, a platinum sheet electrode was inserted (both cathode and anode were platinum sheets, and the area size was 2.0×1.0cm 2 ). Keep the temperature of the electrolyte at 30°C, pass through 200μA / cm 2 A constant current density, after 4 hours of reaction, a layer of da...

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Abstract

The invention discloses an array ofk-(BEDT-TTF)2Cu(SCN)2 nanometer rods, the preparing method and the application. The invention makes use of electrochemical oxidation-reduction method to prepare organic composite salt based on BEDT-TTF charge transferring, the array of k-(BEDT-TTF)2Cu(SCN)2 nanometer rods. The preparing method is simple and yield can achieve more than 90%. Obtained array of k-(BEDT-TTF)2Cu(SCN)2 nanometer rods possesses good field emission characteristic and can be applied in field effect transistor, field emission, superconducting material, solar battery, electric switch, sensor, hydrogen storing, ferromagnetism resistance and ferromagnetism so on.

Description

technical field [0001] The present invention relates to nanomaterials and their preparation methods and applications, in particular to κ-(BEDT-TTF) 2 Cu(SCN) 2 This kind of BEDT-TTF-based organic charge transfer salt nanorod array and its preparation method and application. Background technique [0002] Charge-transfer metal-organic composites based on bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) are a class of organic functional materials that have attracted wide attention, and they have many unique physical and chemical properties. Since Mizunor first prepared BEDT-TTF and its complex salt (BEDT-TTF) TCNQ in 1978 (M.Mizuno, A.F.Garito, M.P.Cava, J.C.S.Chem.Comm.1978, 18), the charge transfer of BEDT-TTF The research results of superconductivity, antiferromagnetism, ferromagnetism, etc. of type organic compound salts are constantly being reported ([1] J.M.Williams, H.H.Wang, T.J.Emge, U.Geiser, M.A Beno, K.D.Carlson, R.J.Thorn, A.J. Schultz, M.-H.Whangbo, frog.Inorg....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B3/00C25D9/02
Inventor 黄长水刘辉彪李玉良朱道本
Owner INST OF CHEM CHINESE ACAD OF SCI