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Light trapping concepts for photon management in solar cells

: Sprafke, A.N.; Wehrspohn, R.B.

Postprint urn:nbn:de:0011-n-2364628 (651 KByte PDF)
MD5 Fingerprint: d837f78895e59abc597526bf237fc317
Erstellt am: 27.11.2014

Green 2 (2012), Nr.4, S.177-187
ISSN: 1869-876X
ISSN: 1869-8778
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IWM ()
photon management; ligth trapping; solar cells; photovoltaics; photonic crystals; ultra-light trapping; intermediate reflector

Photon management is a key component in the development of efficient solar cells. Especially light-trapping concepts have a high potential to realize enhanced efficiencies. Here, we give an overview over several light trapping concepts for photon management in solar cells. These include basic as well as advanced light-trapping concepts. The theoretical limits of light path enhancement of the different concepts are given and experimental work on these topics is resented. The potential of 3D photonic crystals is discussed in the context of the corresponding approaches as well.