Photoelectrochromic devices based on sputtered WO3 and TiO2 films
| Autor: | Andreas Georg, Shankar Bogati, Wolfgang Graf |
|---|---|
| Přispěvatelé: | Publica |
| Rok vydání: | 2017 |
| Předmět: |
potential
Materials science photo-electrochromic 02 engineering and technology engineering.material 01 natural sciences law.invention Colloid Dünnschicht-Siliciumsolarzellen Optics couple Coating law Sputtering 0103 physical sciences Solar cell Porosity electrochromic 010302 applied physics Renewable Energy Sustainability and the Environment business.industry 021001 nanoscience & nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials Titanium oxide Silicium-Photovoltaik Electrochromism Photovoltaik engineering Optoelectronics sputtering 0210 nano-technology business Layer (electronics) Solarthermie und Optik |
| Zdroj: | Solar Energy Materials and Solar Cells. 163:170-177 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2017.01.016 |
| Popis: | The photoelectrochromic (PEC) device, a combination of a dye solar cell and an electrochromic film, can be used for the dynamic solar control of buildings under illumination or with an external voltage. Typically, titanium oxide (TiO 2 ) and tungsten oxide (WO 3 ) films are being prepared from colloids or sol-gel chemistry with high porosity and high surface area as functional layers for a photoelectrochromic device in lab scale. We have, for the first time, successfully developed a PEC device with conventionally sputter deposited TiO 2 and WO 3 films. This coating technique is attractive due to the well documented upscaling capability and industrial viability for window applications. The functional layers WO 3 and TiO 2 were deposited onto fluorine doped oxide (F:SnO 2 ) coated glass . Characterization of WO 3 and TiO 2 was performed in an electrochromic cell and in a dye solar cell, respectively. Three types of PEC devices with different layer configuration were constructed and their performance based on visual transmissions was compared. In best case, the visual transmission could be switched from 61 down to 15% in 30 min under 1.5 A.M. illumination. |
| Databáze: | OpenAIRE |
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