Thin Films for Advanced Glazing Applications
| Autor: | Russell Binions, Luz Romero, Shuqun Chen, Işıl Top, Ann-Louise Anderson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
vanadium dioxide
Computer science energy efficient glazing Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences lcsh:TH1-9745 Low emissivity Vanadium dioxide building integrated photovoltaics Architecture Thin film Civil and Structural Engineering thermochromic photocatalyst Building and Construction 021001 nanoscience & nanotechnology 0104 chemical sciences Dye-sensitized solar cell Glazing Electricity generation thin films Solar gain pollution reduction Building-integrated photovoltaics 0210 nano-technology self-cleaning lcsh:Building construction |
| Zdroj: | Buildings, Vol 6, Iss 3, p 37 (2016) |
| ISSN: | 2075-5309 |
| Popis: | Functional thin films provide many opportunities for advanced glazing systems. This can be achieved by adding additional functionalities such as self-cleaning or power generation, or alternately by providing energy demand reduction through the management or modulation of solar heat gain or blackbody radiation using spectrally selective films or chromogenic materials. Self-cleaning materials have been generating increasing interest for the past two decades. They may be based on hydrophobic or hydrophilic systems and are often inspired by nature, for example hydrophobic systems based on mimicking the lotus leaf. These materials help to maintain the aesthetic properties of the building, help to maintain a comfortable working environment and in the case of photocatalytic materials, may provide external pollutant remediation. Power generation through window coatings is a relatively new idea and is based around the use of semi-transparent solar cells as windows. In this fashion, energy can be generated whilst also absorbing some solar heat. There is also the possibility, in the case of dye sensitized solar cells, to tune the coloration of the window that provides unheralded external aesthetic possibilities. Materials and coatings for energy demand reduction is highly desirable in an increasingly energy intensive world. We discuss new developments with low emissivity coatings as the need to replace scarce indium becomes more apparent. We go on to discuss thermochromic systems based on vanadium dioxide films. Such systems are dynamic in nature and present a more sophisticated and potentially more beneficial approach to reducing energy demand than static systems such as low emissivity and solar control coatings. The ability to be able to tune some of the material parameters in order to optimize the film performance for a given climate provides exciting opportunities for future technologies. In this article, we review recent progress and challenges in these areas and provide a perspective for future trends and developments. |
| Databáze: | OpenAIRE |
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