Proof-of-Concept p-Type Silicon Solar Cells with Molybdenum Oxide Local Rear Contacts
Date
2015
Authors
Bullock, James
Samundsett, Christian
Cuevas, Andres
Yan, Di
Wan, Yimao
Allen, Thomas
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IEEE Electron Devices Society
Abstract
This paper explores the application of transparent MoOx (<3) films as hole-collecting contacts on the rear side of crystalline silicon solar cells. Two dimensional simulations, which consider experimental contact recombination J0c and resistivity ρc values, indicate that the benefits of direct MoOx -based contacts are best exploited by reducing the rear contact fraction. This concept is demonstrated experimentally using simple p-type cells featuring a ∼5% rear fraction MoOx contact. These cells attain a conversion efficiency of 20.4%, a promising result, given the early stage of development for this technology.
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IEEE Journal of Photovoltaics
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Journal article
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2037-12-31
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