| 摘要 |
According to the method are deposited metal layers with a thickness of up to several hundred nanometres by Pulse Laser deposition on the mat. The process of deposition of the metal layer is done in a vacuum. The target, which baled material, is composed of sectors, containing various metals. In the process of postponing the target rotates at a certain speed, and as a result on the pad is deposited layer composed of different metals in the target. By changing the size of the slices in the target content of deposits on the pad metal layer can be changed. The resulting metallic layer is desuperheating using a pulse laser radiation, with the duration of the pulse from a few tens of nanoseconds and in a wide range of wavelengths of the radiation. The application of single laser pulses with fixed energy leads to the landfill directive of the layer in monolayer system of nanometre-scale particles, each with a multicomponent composition comprising elements constituting the metal layer. Desuperheating of the layers can be conducted in a vacuum, gas or air. The method allows for receipt of two-dimensional structures (mono layer) of nanoparticles with different composition, which is easily determined by the conditions of receipt, to the formation of structures directly on the pad and a large area in the desired configuration. The method allows for the development of structures with a wide range of properties. It is easily workable and widely used for receipt of complex structures. The resulting structures are applicable in electronics for receiving environments for recording information, spintronics, optoelectronics and photonics, for surface-enhanced Raman Spectroscopy for the detection of different substances. Such structures are applicable and as catalysts in various chemical reactions. |
