NDLI: Design and photovoltaic performance of nanorod solar cells with amorphous silicon absorber layer thickness of only 25 nm

Content Provider	IEEE Xplore Digital Library
Author	Yinghuan Kuang van der Werf, K.H.M. Houweling, Z.S. Di Vece, M. Schropp, R.E.I.
Copyright Year	2011
Description	Author affiliation: Utrecht University, Faculty of Science, Debye Institute for Nanomaterials Science, Section Nanophotonics - Physics of Devices, P.O. Box 80.000, 3508 TA Utrecht, the Netherlands (Yinghuan Kuang; van der Werf, K.H.M.; Houweling, Z.S.; Di Vece, M.; Schropp, R.E.I.)
Abstract	We report on the design and photovoltaic performance of nanostructured three dimensional (nano-3D) solar cells with ultrathin amorphous hydrogenated silicon (a-Si:H) absorber layers. Zinc oxide (ZnO) nanorods are employed as the building blocks for the nano-3D solar cells. The ZnO nanorods with controlled morphology are prepared by aqueous solution deposition at 80°C. The nanorod a-Si:H solar cells are realized by depositing n-i-p a-Si:H layers over Ag-coated ZnO nanorods. The photovoltaic performance of the nano-3D solar cells is experimentally demonstrated. With an ultrathin absorber layer of only 25 nm, an efficiency of 3.6% and a short-circuit current density of 8.3 $mA/cm^{2}$ are obtained, significantly higher than values achieved for the planar or even the textured counterparts with a three times thicker (∼75 nm) a-Si:H absorber layer. By increasing the absorber layer thickness in the nano-3D solar cells from 25 nm to 75 nm, the efficiency improved from 3.6% to 4.1% and the short-circuit current density increased from 8.3 $mA/cm^{2}$ to 13.3 $mA/cm^{2}.$ The orthogonalization of the light path and the carrier transport path plays an important role in these nano-3D devices.
Starting Page	000802
Ending Page	000806
File Size	1313419
Page Count	5
File Format	PDF
ISBN	9781424499663
ISSN	01608371
e-ISBN	9781424499656
DOI	10.1109/PVSC.2011.6186076
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic cells Photovoltaic systems Zinc oxide Silicon Substrates
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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