Flexible Mo-MoOX-based solar energy absorbing coating and preparation method thereof

Abstract

The invention provides a flexible Mo-MoOX-based solar energy absorbing coating and a preparation method thereof. The flexible Mo-MoOX-based solar energy absorbing coating comprises a substrate. An infrared reflection layer, a nano composite absorption layer and an antireflection layer are sequentially arranged on the substrate from bottom to top. The nano composite absorption layer is a compositecoating with molybdenum nano-particles doped into a molybdenum oxide matrix, and the antireflection layer is a molybdenum oxide medium layer. During preparation, a metal molybdenum target is adopted and is deposited on the substrate through a reaction magnetron sputtering method, the preparation process of the coating is greatly simplified, and the coating is suitable for low-price and large-scaleindustrial and flexible production. The composite adsorption layer has the gradient-changing doping concentration, due to the interference function of light, the gradient structure can effectively absorb sunlight, and the light absorption efficiency of the coating can be enhanced.

Description

technical field [0001] The invention relates to the field of flexible solar thermal technology, in particular to a flexible Mo-MoO x Solar-based absorbing coatings and methods for their preparation. Background technique [0002] With the rapid development of the global economy, the demand for fossil fuels such as oil, natural gas and coal is increasing. However, the consumption of fossil fuels will have a serious impact on the environment and threaten the survival and development of human beings. Energy and environmental issues have become an important concern of the world. One of the problems is that it is imminent to develop alternative new energy sources. As a clean and pollution-free renewable natural energy, solar energy can be regarded as a potential solution to the environmental pollution and energy consumption crisis. In today's era of energy shortage, the collection and conversion of solar energy has very important application value, involving various forms such a...

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Problems solved by technology

However, the multilayer photothermal conversion coatings mentioned above usually require a complex co-sputtering technology, and two or more sputtering targets, or even alloy targets, are required to be used simultaneously in the coating preparation process. This inevitably increases the preparation cost of the coating, making the preparation process of the coating very complicated, which is not conducive to large-scale industrial production, and also limits its application in flexible solar thermal conversion technology.

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