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22.6% Efficient Solar Cells with Polysilicon Passivating Contacts on n-type Solar-Grade Wafers

Basnet, Rabin; Phang, Sieu Pheng; Samundsett, Christian; Yan, Di; Liang, Wensheng; Sun, Ryan; Armand, Stephane; Einhaus, Roland; Degoulange, Julien; Macdonald, Daniel

Description

Czochralski (Cz)‐grown upgraded metallurgical‐grade (UMG) silicon wafers degrade significantly during high‐temperature processes, eroding their appeal as a low‐cost alternative to conventional electronic‐grade silicon wafers. However, the thermal degradation in UMG wafers can be delayed by utilizing a prefabrication annealing step. Based on this, a high‐efficiency solar‐cell process is modified by selecting a single‐boron diffusion step and applying phosphorus‐doped polycrystalline films as...[Show more]

dc.contributor.authorBasnet, Rabin
dc.contributor.authorPhang, Sieu Pheng
dc.contributor.authorSamundsett, Christian
dc.contributor.authorYan, Di
dc.contributor.authorLiang, Wensheng
dc.contributor.authorSun, Ryan
dc.contributor.authorArmand, Stephane
dc.contributor.authorEinhaus, Roland
dc.contributor.authorDegoulange, Julien
dc.contributor.authorMacdonald, Daniel
dc.date.accessioned2021-01-27T05:33:02Z
dc.identifier.issn2367-198X
dc.identifier.urihttp://hdl.handle.net/1885/220030
dc.description.abstractCzochralski (Cz)‐grown upgraded metallurgical‐grade (UMG) silicon wafers degrade significantly during high‐temperature processes, eroding their appeal as a low‐cost alternative to conventional electronic‐grade silicon wafers. However, the thermal degradation in UMG wafers can be delayed by utilizing a prefabrication annealing step. Based on this, a high‐efficiency solar‐cell process is modified by selecting a single‐boron diffusion step and applying phosphorus‐doped polycrystalline films as electron‐selective contacts with excellent impurity‐gettering properties to minimize the thermal budget. The application of this modified high‐efficiency solar‐cell process to n‐type UMG‐Cz wafers results in a solar cell with a conversion efficiency of 22.6% on a cell area of 2 × 2 cm2.
dc.description.sponsorshipThis work was supported by the Australian Renewable Energy Agency (ARENA) through the Australian Centre for Advanced Photovoltaics (ACAP) and projects RND009 and RND017
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherWiley Online Library
dc.rights© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.sourceRRL Solar
dc.title22.6% Efficient Solar Cells with Polysilicon Passivating Contacts on n-type Solar-Grade Wafers
dc.typeJournal article
local.description.notesImported from ARIES
dc.date.issued2019
local.identifier.absfor091203 - Compound Semiconductors
local.identifier.ariespublicationu3102795xPUB4611
local.publisher.urlhttps://www.wiley.com/en-gb
local.type.statusPublished Version
local.contributor.affiliationBasnet, Rabin, College of Engineering and Computer Science, ANU
local.contributor.affiliationPhang, Sieu Pheng, College of Engineering and Computer Science, ANU
local.contributor.affiliationSamundsett, Christian, College of Engineering and Computer Science, ANU
local.contributor.affiliationYan, Di, College of Engineering and Computer Science, ANU
local.contributor.affiliationLiang, Wensheng, College of Engineering and Computer Science, ANU
local.contributor.affiliationSun, Ryan, College of Engineering and Computer Science, ANU
local.contributor.affiliationArmand, Stephane, College of Engineering and Computer Science, ANU
local.contributor.affiliationEinhaus, Roland, APOLLON SOLAR
local.contributor.affiliationDegoulange, Julien, Apollon Solar
local.contributor.affiliationMacDonald, Daniel, College of Engineering and Computer Science, ANU
local.description.embargo2099-12-31
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage5
local.identifier.doi10.1002/solr.201900297
local.identifier.absseo850504 - Solar-Photovoltaic Energy
dc.date.updated2020-11-02T04:22:51Z
local.identifier.thomsonIDWOS:000480044900001
CollectionsANU Research Publications

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