nor logic gate and its construction method
A logic gate and logic input technology, applied in the nano field, can solve the problems of degeneration, logic gate output error, easy breakage, etc., and achieve the effect of high bonding strength, strong protection effect and high stability
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Embodiment 1
[0044] In this example, the synthesis and characterization of gold nanorods are carried out.
[0045] 1.1 Synthesis of gold species: Add 5mL 0.1mol / L CTAB and 25μL 50mmol / L chloroauric acid into a 25mL flask, stir the mixture for 5min, add 300μL 10mmol / L freshly prepared sodium borohydride solution to the mixture, and stir for 25s , the color of the solution turns from brown to brown, indicating the formation of gold species, and the prepared gold species solution is stored in an environment of 27-30° C. for later use.
[0046] 1.2 Preparation of growth solution: Add 200 μL of 1mol / L hydrochloric acid and 100 μL of 50 mmol / L chloroauric acid into 10 mL of 0.1 mol / L CTAB solution, stir for 5 minutes, and then mix 120 μL of 10 mmol / L silver nitrate solution and 100 μL of 100 mmol / L Ascorbic acid is sequentially added to the above mixture, and the growth liquid is obtained after mixing.
[0047] 1.3 Preparation of gold nanorods: inject 24 μL of the gold seed solution synthesized...
Embodiment 2
[0051] This embodiment examines the influence of the concentration of the logic input on the output result, and provides a method for determining the threshold of the logic input.
[0052] The etching solution in this embodiment is composed of 200mmol / L hydrogen peroxide, 0.4mmol / L sodium iodide and 0.4mmol / L hydrochloric acid. The first logic input is 11-mercaptoundecanoic acid and the second logic input is 11-mercaptoundecyltrimethylammonium bromide. The concentration of the logic input was varied during the experiment, thus changing its concentration in the final solution. The wavelength of the gold nanorod L-LSPR in the final solution was measured spectroscopically, and the concentration threshold of the logic input was determined by its blue-shifted wavelength value Δλ. Δλ is defined as the L-LSPR wavelength λ of the nanorod solution 0 and the L-LSPR wavelength λ of the final solution x The difference, Δλ=λ 0 -λ x .
[0053] Mix 200 μL of the gold nanorod working so...
Embodiment 3
[0056] In this embodiment, the effect of the carbon chain length on the logic input threshold is investigated.
[0057] The etching solution in this embodiment is composed of 200mmol / L hydrogen peroxide, 0.4mmol / L sodium iodide and 0.4mmol / L hydrochloric acid. Mix 200 μL of the gold nanorod working solution obtained in Example 1 with 20 μL of the first logic input and 20 μL of the second logic input, add 20 μL of etching solution, mix well, place in a water bath at 80°C for 6 minutes, and remove the final solution , placed in an ice-water bath at 0°C for 4 min, and then measured the spectrum.
[0058] The first logic input is a mercapto-alkylcarboxylic acid with the general formula HS-(CH 2 ) n-1 -COOH; the second logic input is mercapto-alkyl-amine or mercapto-alkyltrimethylammonium salt, respectively in the general formula HS-(CH 2 ) n -NH 2 and HS-(CH 2 ) n -N(CH 3 ) 3 + Represent; In the above formula, n is the length of the carbon chain. During the experiment, ...
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