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Electrically switchable polymer stabilised broadband infrared reflectors and their potential as smart windows for energy saving in buildings.

Khandelwal H, Loonen RC, Hensen JL, Debije MG, Schenning AP - Sci Rep (2015)

Bottom Line: Simulations predict that a significant amount of energy can be saved on heating, cooling and lighting of buildings in places such as Madrid by using this switchable IR reflector.We have also fabricated a switchable IR reflector which can also generate electricity.These polymer based switchable IR reflectors are of high potential as windows of automobiles and buildings to control interior temperatures and save energy.

View Article: PubMed Central - PubMed

Affiliation: 1] Functional Organic Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven, University of Technology, Den Dolech 2, 5600 MB Eindhoven, the Netherlands [2] Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands.

ABSTRACT
Electrically switchable broadband infrared reflectors that are relatively transparent in the visible region have been fabricated using polymer stabilised cholesteric liquid crystals. The IR reflectors can change their reflection/transmission properties by applying a voltage in response to changes in environmental conditions. Simulations predict that a significant amount of energy can be saved on heating, cooling and lighting of buildings in places such as Madrid by using this switchable IR reflector. We have also fabricated a switchable IR reflector which can also generate electricity. These polymer based switchable IR reflectors are of high potential as windows of automobiles and buildings to control interior temperatures and save energy.

No MeSH data available.


Related in: MedlinePlus

Molecular structures of the materials used.
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f1: Molecular structures of the materials used.

Mentions: Chiral dopant CD-267 was obtained from Philips Research Lab. Nematic liquid crystal mixture E7 (∆ε = +14.3) and chiral dopant CB-15 ((S)-4’-(2-Methylbutyl)[1,1’-biphenyl]-4-carbonitrile) were purchased from Merck. Photoabsorber Tinuvin-328 and photoinitiator Irgacure-651 were purchased from Ciba Specialty Chemicals Ltd (Fig. 1). Indium Tin Oxide (ITO) coated rubbed polyimide cells with 20.4 μm gap thickness were purchased from Instec Inc.


Electrically switchable polymer stabilised broadband infrared reflectors and their potential as smart windows for energy saving in buildings.

Khandelwal H, Loonen RC, Hensen JL, Debije MG, Schenning AP - Sci Rep (2015)

Molecular structures of the materials used.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4487232&req=5

f1: Molecular structures of the materials used.
Mentions: Chiral dopant CD-267 was obtained from Philips Research Lab. Nematic liquid crystal mixture E7 (∆ε = +14.3) and chiral dopant CB-15 ((S)-4’-(2-Methylbutyl)[1,1’-biphenyl]-4-carbonitrile) were purchased from Merck. Photoabsorber Tinuvin-328 and photoinitiator Irgacure-651 were purchased from Ciba Specialty Chemicals Ltd (Fig. 1). Indium Tin Oxide (ITO) coated rubbed polyimide cells with 20.4 μm gap thickness were purchased from Instec Inc.

Bottom Line: Simulations predict that a significant amount of energy can be saved on heating, cooling and lighting of buildings in places such as Madrid by using this switchable IR reflector.We have also fabricated a switchable IR reflector which can also generate electricity.These polymer based switchable IR reflectors are of high potential as windows of automobiles and buildings to control interior temperatures and save energy.

View Article: PubMed Central - PubMed

Affiliation: 1] Functional Organic Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven, University of Technology, Den Dolech 2, 5600 MB Eindhoven, the Netherlands [2] Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands.

ABSTRACT
Electrically switchable broadband infrared reflectors that are relatively transparent in the visible region have been fabricated using polymer stabilised cholesteric liquid crystals. The IR reflectors can change their reflection/transmission properties by applying a voltage in response to changes in environmental conditions. Simulations predict that a significant amount of energy can be saved on heating, cooling and lighting of buildings in places such as Madrid by using this switchable IR reflector. We have also fabricated a switchable IR reflector which can also generate electricity. These polymer based switchable IR reflectors are of high potential as windows of automobiles and buildings to control interior temperatures and save energy.

No MeSH data available.


Related in: MedlinePlus