dc.contributor.author
Schmid, Martina
dc.contributor.author
Yin, Guanchao
dc.contributor.author
Song, Min
dc.contributor.author
Duan, Shengkai
dc.contributor.author
Heidmann, Berit
dc.contributor.author
Sancho-Martinez, Diego
dc.contributor.author
Kämmer, Steven
dc.contributor.author
Köhler, Tristan
dc.contributor.author
Manley, Phillip
dc.contributor.author
Lux-Steiner, Martha
dc.date.accessioned
2018-06-08T10:58:16Z
dc.date.available
2017-03-14T11:59:37.004Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/21403
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-24697
dc.description.abstract
Light concentration has proven beneficial for solar cells, most notably for
highly efficient but expensive absorber materials using high concentrations
and large scale optics. Here, we investigate the light concentration for cost-
efficient thin-film solar cells that show nano- or microtextured absorbers.
Our absorber material of choice is Cu(In,Ga)Se2 (CIGSe), which has a proven
stabilized record efficiency of 22.6% and which—despite being a
polycrystalline thin-film material—is very tolerant to environmental
influences. Taking a nanoscale approach, we concentrate light in the CIGSe
absorber layer by integrating photonic nanostructures made from dielectric
materials. The dielectric nanostructures give rise to resonant modes and field
localization in their vicinity. Thus, when inserted inside or adjacent to the
absorber layer, absorption and efficiency enhancement are observed. In
contrast to this internal absorption enhancement, external enhancement is
exploited in the microscaled approach: mm-sized lenses can be used to
concentrate light onto CIGSe solar cells with lateral dimensions reduced down
to the micrometer range. These micro solar cells come with the benefit of
improved heat dissipation compared with the large scale concentrators and
promise compact high-efficiency devices. Both approaches of light
concentration allow for reduction in material consumption by restricting the
absorber dimension either vertically (ultrathin absorbers for dielectric
nanostructures) or horizontally (microabsorbers for concentrating lenses) and
have significant potential for efficiency enhancement.
en
dc.format.extent
8 Seiten
dc.rights.uri
http://spie.org/x1811.xml
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik
dc.title
Concentrating light in Cu(In,Ga)Se2 solar cells
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
Journal of Photonics for Energy. - 7 (2017), 1, Artikel Nr. 018001
dc.identifier.sepid
56429
dcterms.bibliographicCitation.doi
10.1117/1.JPE.7.018001
refubium.affiliation
Physik
de
refubium.affiliation.other
Institut für Experimentalphysik

refubium.mycore.fudocsId
FUDOCS_document_000000026629
refubium.note.author
Bei der PDF-Datei handelt es sich um ein Manuskript.
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000007894
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1947-7988