NDLI: A payback assessment for materials development for the low-gap unit of a multi-junction cell: a numerical modeling study

Content Provider	IEEE Xplore Digital Library
Author	Sanghoon Bae Jingya Hou Suntharalingam, V. Fonash, S.J.
Copyright Year	1993
Description	Author affiliation: Electron. Mater. & Process. Res. Lab., Pennsylvania State Univ., University Park, PA, USA (Sanghoon Bae; Jingya Hou; Suntharalingam, V.; Fonash, S.J.)
Abstract	The objective of this paper is to demonstrate how computer simulations can be used to determine the best payback when the improvement of solar cell efficiency is sought. For this demonstration, modeling work has been undertaken to examine how the material quality of the absorber and p/i interface layers of the a-SiGe:H heterojunction of a triple junction can affect device performance. According to simulation results, which are based on assuming a simplified a-SiGe:H sub-cell structure with only doped layers, interfacial layers, and a homogeneous absorber, the authors find that the scheme with the best payback for enhancing cell efficiency is different for the absorber layer and the p/i interface layer. For the absorber, the density of mid-gap states is the most important factor, but for the p/i interface layer the mobility gap is the most dominant factor. Their numerical analysis approach allows the determination of where material improvement efforts will have the most effect. Put succinctly, the relative importance analysis, which can be achieved with simulation, shows where material development efforts will have their best payoff chances.
Starting Page	1011
Ending Page	1015
File Size	335675
Page Count	5
File Format	PDF
ISBN	0780312201
DOI	10.1109/PVSC.1993.346987
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-05-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer simulation Photovoltaic cells Analytical models PIN photodiodes Photonic band gap Performance analysis Computational modeling Numerical models Laboratories Numerical analysis
Content Type	Text
Resource Type	Article

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