Sample signal amplification method using terahertz wave band graphene absorber
A signal amplification and graphene technology, which is applied in the field of terahertz signal amplification of samples, can solve the problems that it is difficult to achieve a close fit between metamaterials and the surface of the sample to be tested, and meet the needs of rapid detection, smooth surface, and close fit. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0052] (1) The making of graphene absorber;
[0053]Take a silicon wafer or a quartz wafer, ultrasonically clean it in acetone, isopropanol and water for 10 minutes, blow dry with nitrogen, evaporate 10nm of titanium and 200nm of gold on the surface as an anti-transmission layer, and stick it on the gold surface Polyimide tape (thickness: 50-100μm), there should be no air bubbles between the polyimide tape and the metal anti-transmission layer. After the end, a layer of graphene is transferred on the polyimide tape. Schematic diagram of the structure of the graphene absorber Such as figure 1 shown.
[0054] Wherein, the transfer of graphene can adopt the following methods;
[0055] Release the purchased graphene into the water for at least 2 hours, use tweezers to clamp the silicon wafer or quartz wafer with polyimide tape to fit the graphene in the water, adjust the graphene to a suitable position, remove the graphene from the water surface, vertically Place it upright for...
Embodiment 2
[0071] (1) The making of flexible graphene absorber;
[0072] Take a polyimide film with a thickness of 50 μm, ultrasonically clean it in acetone, isopropanol, and water for 10 minutes, blow dry with nitrogen, and evaporate 10 nm of titanium and 150 nm of gold on the surface as an anti-transmission layer by evaporation, and then Transfer a layer of graphene on polyimide tape.
[0073] Wherein, the transfer of graphene can adopt the following methods;
[0074] After releasing the purchased graphene into the water for at least 2 hours, hold the polyimide film with tweezers, put it in the water at an angle, and press the polyimide film into the water with another tweezer if necessary; One side fits the graphene in the water, adjust it to a suitable position, remove the graphene from the water, place it vertically for 3 minutes to let the excess water flow out, then let it dry for 30 minutes, then dry it in an oven at 100°C for 20 minutes, and let it stand to room temperature Th...
Embodiment 3
[0084] (1) The making of graphene absorber;
[0085] Take a silicon or quartz wafer, ultrasonically clean it in acetone, isopropanol, and water for 10 minutes, blow dry it with nitrogen, and vapor-deposit 10nm of titanium and 100nm of gold on the surface as an anti-transmission layer, and stick it on the gold surface Polyimide tape (thickness is 50-100 μ m), no air bubbles can exist between the polyimide tape and the metal anti-transmission layer, and then transfer one layer of graphene on the polyimide tape.
[0086] Wherein, the transfer of graphene can adopt the following methods;
[0087] After releasing the purchased graphene into the water for at least 2 hours, use tweezers to clamp the silicon wafer or quartz wafer with polyimide tape to fit the graphene in the water, adjust the graphene to a suitable position, and remove the graphene from the water. Put it vertically for 3 minutes to allow excess water to flow out, then let it dry for 30 minutes, then dry it in an ove...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More