Journal Article

FZJ-2015-06225

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Angular dependence of light trapping in nanophotonic thin-film solar cells

Smeets, M. (Corresponding author)FZJ* ; Smirnov, V.FZJ* ; Bittkau, K.FZJ* ; Meier, M.FZJ* ; Carius, R.FZJ* ; Rau, U.FZJ* ; Paetzold, U. W.FZJ*

2015
Soc. Washington, DC

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/10753  doi:10.1364/OE.23.0A1575

Abstract: The angular dependence of light-trapping in nanophotonic thin-film solar cells is inherent due to the wavelength-scale dimensions of the periodic nanopatterns. In this paper, we experimentally investigate the dependence of light coupling to waveguide modes for light trapping in a-Si:H solar cells deposited on nanopatterned back contacts. First, we accurately determine the spectral positions of individual waveguide modes in thin-film solar cells in external quantum efficiency and absorptance. Second, we demonstrate the strong angular dependence of this spectral position for our solar cells. Third, a moderate level of disorder is introduced to the initially periodic nanopattern of the back contacts. As a result, the angular dependence is reduced. Last, we experimentally compare this dependence on the angle of incidence for randomly textured, 2D periodically nanopatterned and 2D disordered back contacts in external quantum efficiency and short-circuit current density.

---

Contributing Institute(s):

1. Photovoltaik (IEK-5)

Research Program(s):

1. 121 - Solar cells of the next generation (POF3-121) (POF3-121)
2. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2015

---

Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---