Electric field detection device based on noble metal particle spacing change
A detection device and precious metal technology, applied in the field of electric field detection, can solve the problem of low sensitivity and achieve the effect of changing the distance
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Embodiment 1
[0020] The invention provides an electric field detection device based on the change of the distance between noble metal particles, such as figure 1 As shown, it includes a base layer 1 , a heating part 2 , an organic conjugated polymer material part 3 , noble metal particles 4 , a first force applying part 5 and a second force applying part 6 . The surface of the base layer 1 is provided with pits, and the heating part 2 is placed in the pits. The material of the base layer 1 is a heat insulating material, which is used to insulate the heat generated by the heating part 2 . The heating part 2 can generate high temperature by connecting other high-temperature objects, or by generating heat through resistance, which is not specifically limited here. The surface of the heating portion 2 is flush with the surface of the base layer 1 . The organic conjugated polymer material part 3 is placed on the heating part 2 and the base layer 1 . The material of the organic conjugated pol...
Embodiment 2
[0024] On the basis of Example 1, such as figure 2 As shown, a noble metal thin film 7 is also included, the noble metal thin film 7 is disposed on the heating part 2 , and the organic conjugated polymer material part 3 is disposed on the noble metal thin film 7 and the base layer 1 . At this time, the noble metal particles 4 are not in direct contact with the noble metal thin film 7 , and an organic conjugated polymer material is also provided between the noble metal particles 4 and the noble metal thin film 7 . The material of the precious metal thin film 7 is gold or silver. In this way, the coupling between the noble metal film 7 and the noble metal particle 4 changes the vibration state of the charge in the noble metal particle 4, and this change depends heavily on the organic conjugated polymer material between the noble metal particle 4 and the noble metal film 7. effective refractive index. Therefore, when the molecular chain direction of the organic conjugated poly...
Embodiment 3
[0026] On the basis of Example 1, such as image 3 As shown, it also includes a noble metal film 7, the noble metal film 7 is arranged on the heating layer 2 in the pit, the surface of the noble metal film 7 is flush with the surface of the base layer 1, and the organic conjugated polymer material part 3 is arranged on the noble metal film 7 and the base layer. Ground floor 1 upper. In this way, in addition to having the intended effect in Example 2, it is not only convenient for preparation, but also facilitates the reuse of the three parts of the base layer 1 , the heating part 2 , and the noble metal thin film 7 . During the preparation, firstly, the heating part 2 is arranged in the pit, and then the precious metal material is vapor-deposited in the pit, and then the precious metal material on the base layer 1 is polished off by a polishing method, and the precious metal thin film 7 disposed in the pit can be obtained. , so the preparation of this embodiment is simple. A...
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Abstract
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