NDLI: Loss analysis of DSBC solar cells on FZ(B), MCZ(B), CZ(Ga), and CZ(B) wafers

Content Provider	IEEE Xplore Digital Library
Author	Cousins, P.J. Mason, N.B. Cotter, J.E.
Copyright Year	1963
Abstract	The experimental performance of the double-sided buried contact (DSBC) solar cell does not reflect the theoretical potential of the device design; instead, it results in suboptimal one-sun performance. Several mechanisms that adversely affect the performance of the DSBC solar cell have previously been identified; however, their impact on performance is still unquantified. Furthermore, since the inception of the DSBC design, the type of silicon available to the commercial silicon solar industry has broadened to include alternative dopants, growth methods, and thinner wafers. This paper investigates the performance limitations of the DSBC design on boron-doped float-zoned, boron-doped magnetically confined Czochralski (CZ), gallium-doped CZ, and boron-doped CZ wafers in terms of 1) manufacturing limitations, 2) design limitations, and 3) wafer-choice limitations. It utilizes in-process characterization tools and extensive cell characterization to identify the loss mechanisms dominating the DSBC design performance on commercial wafers. Finally, a PC1D model is constructed to evaluate the relative importance of these loss mechanisms to the device performance. The results of this loss analysis highlight the importance of the three aspects of high-efficiency silicon solar cells, i.e.,1) manufacturing, 2) design, and 3) wafer selection, both to the future improvement of the DSBC solar cell and other high-efficiency commercial structures.
Sponsorship	IEEE Electron Devices Society
Starting Page	797
Ending Page	807
Page Count	11
File Size	453299
File Format	PDF
ISSN	00189383
Volume Number	53
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic cells Silicon Gallium Boron silicon Circuit analysis losses photovoltaic cell measurements photovoltaic cells
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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