Development of a new self-powered electrochromic device for light modulation without external power supply

Bechinger, Clemens; Gregg, B.A.

Development of a new self-powered electrochromic device for light modulation without external power supply

Dateien

Bechinger_0-413514.pdfGröße: 123.46 KBDownloads: 437

Datum

1998

Autor:innen

Bechinger, Clemens

Gregg, B.A.

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Solar Energy Materials and Solar Cells. 1998, 54(1-4), pp. 405-410. ISSN 0927-0248. eISSN 1879-3398. Available under: doi: 10.1016/S0927-0248(98)00092-0

Zusammenfassung

Despite considerable improvements within the last decades, electrochromic (EC) window coatings are still too expensive to be applied in buildings on a large scale. Beside the manufacturing costs, wiring costs have to be added which may exceed the fabrication expenses of the electrochromic window. Therefore, self-powered electrochromic windows have been considered, where a semi-transparent photovoltaic (PV) cell provides the power to activate an electrochromic system deposited on top of the solar cell. The whole PVEC device consists of up to eight layers which must be deposited on large scales without short circuits or other failures. Recently, we came up with a much simpler idea where power generation and electrochromic properties are combined rather than just added as in the case of the PVEC cell. The whole device now is obtained by the deposition of only three layers and is highly transparent in the bleached state. Exposing it to sunlight and completing an external circuit the device can be colored within a few minutes, reducing the transmission by about 40%. Bleaching occurs either spontaneously by blocking the sunlight or is induced by a small rechargeable battery which can be incorporated in the external circuit and is charged from the device when exposed to sunlight.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

BECHINGER, Clemens, B.A. GREGG, 1998. Development of a new self-powered electrochromic device for light modulation without external power supply. In: Solar Energy Materials and Solar Cells. 1998, 54(1-4), pp. 405-410. ISSN 0927-0248. eISSN 1879-3398. Available under: doi: 10.1016/S0927-0248(98)00092-0

BibTex

@article{Bechinger1998Devel-39453,
  year={1998},
  doi={10.1016/S0927-0248(98)00092-0},
  title={Development of a new self-powered electrochromic device for light modulation without external power supply},
  number={1-4},
  volume={54},
  issn={0927-0248},
  journal={Solar Energy Materials and Solar Cells},
  pages={405--410},
  author={Bechinger, Clemens and Gregg, B.A.}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/39453">
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-06-29T07:09:26Z</dc:date>
    <dcterms:title>Development of a new self-powered electrochromic device for light modulation without external power supply</dcterms:title>
    <dc:creator>Gregg, B.A.</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39453"/>
    <dc:contributor>Gregg, B.A.</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/39453/1/Bechinger_0-413514.pdf"/>
    <dc:language>eng</dc:language>
    <dcterms:abstract xml:lang="eng">Despite considerable improvements within the last decades, electrochromic (EC) window coatings are still too expensive to be applied in buildings on a large scale. Beside the manufacturing costs, wiring costs have to be added which may exceed the fabrication expenses of the electrochromic window. Therefore, self-powered electrochromic windows have been considered, where a semi-transparent photovoltaic (PV) cell provides the power to activate an electrochromic system deposited on top of the solar cell. The whole PVEC device consists of up to eight layers which must be deposited on large scales without short circuits or other failures. Recently, we came up with a much simpler idea where power generation and electrochromic properties are combined rather than just added as in the case of the PVEC cell. The whole device now is obtained by the deposition of only three layers and is highly transparent in the bleached state. Exposing it to sunlight and completing an external circuit the device can be colored within a few minutes, reducing the transmission by about 40%. Bleaching occurs either spontaneously by blocking the sunlight or is induced by a small rechargeable battery which can be incorporated in the external circuit and is charged from the device when exposed to sunlight.</dcterms:abstract>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Bechinger, Clemens</dc:contributor>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-06-29T07:09:26Z</dcterms:available>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:issued>1998</dcterms:issued>
    <dc:creator>Bechinger, Clemens</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/39453/1/Bechinger_0-413514.pdf"/>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Nein