Light trapping efficiency comparison of Si solar cell textures using spectral photoluminescence

dc.contributor.authorBarugkin, Chog
dc.contributor.authorAllen, Thomas
dc.contributor.authorChong, Teck K
dc.contributor.authorWhite, Thomas
dc.contributor.authorWeber, Klaus J
dc.contributor.authorCatchpole, Kylie
dc.date.accessioned2016-04-20T00:40:14Z
dc.date.available2016-04-20T00:40:14Z
dc.date.issued2015-04-06
dc.date.updated2016-06-14T08:28:23Z
dc.description.abstractThe band-to-band absorption enhancement due to various types of light trapping structures is studied experimentally with photoluminescence (PL) on monocrystalline silicon wafers. Four basic light trapping structures are examined: reactive ion etched texture (RIE), metal-assisted etched texture (MET), random pyramid texture (RAN) and plasmonic Ag nanoparticles with a diffusive reflector (Ag/DR). We also compare two novel combined structures of front side RIE/rear side RAN and front side RIE/rear side Ag/DR. The use of photoluminescence allows us to measure the absorption due to band-to-band transitions only, and excludes parasitic absorption from free carriers and other sources. The measured absorptance spectra are used to calculate the maximum generation current for each structure, and the light trapping efficiency is compared to a recently-proposed figure of merit. The results show that by combining RIE with RAN and Ag/DR, we can fabricate two structures with excellent light trapping efficiencies of 55% and 52% respectively, which is well above previously reported values for similar wafer thicknesses. A comparison of the measured band-band absorption and the EQE of back-contact silicon solar cells demonstrates that PL extracted absorption provides a very good indication of long wavelength performance for high efficiency silicon solar cells.
dc.description.sponsorshipThis Program has been supported by the Australian Government through the Australian Renewable Energy Agency (ARENA). KRC is grateful for the support of a Future Fellowship from the Australian Research Council.en_AU
dc.identifier.issn1094-4087en_AU
dc.identifier.urihttp://hdl.handle.net/1885/101065
dc.provenancehttp://sherpa.ac.uk/romeo/issn/1094-4087/..."author can archive publisher's version/PDF" from SHERPA/RoMEO site (as at 12/06/19).
dc.publisherOptical Society of America
dc.rights© 2015 Optical Society of America
dc.sourceOptics express
dc.subjectAbsorption
dc.subjectPhotovoltaic
dc.subjectSilicon
dc.subjectPhotoluminescence
dc.subjectPlasmonics
dc.subjectTotal internal reflection
dc.subjectSolar energy
dc.titleLight trapping efficiency comparison of Si solar cell textures using spectral photoluminescence
dc.typeJournal article
dcterms.accessRightsOpen Access
local.bibliographicCitation.issue7en_AU
local.bibliographicCitation.lastpageA400
local.bibliographicCitation.startpageA391en_AU
local.contributor.affiliationBarugkin (Qiaoke), Chog, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National Universityen_AU
local.contributor.affiliationAllen, Thomas, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National Universityen_AU
local.contributor.affiliationChong, Teck, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National Universityen_AU
local.contributor.affiliationWhite, Thomas, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National Universityen_AU
local.contributor.affiliationWeber, Klaus, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National Universityen_AU
local.contributor.affiliationCatchpole, Kylie, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National Universityen_AU
local.contributor.authoremailthomas.allen@anu.edu.auen_AU
local.contributor.authoruidu4123966en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor090600en_AU
local.identifier.absfor090605en_AU
local.identifier.absfor130299en_AU
local.identifier.ariespublicationa383154xPUB1457en_AU
local.identifier.citationvolume23en_AU
local.identifier.doi10.1364/OE.23.00A391en_AU
local.identifier.essn1094-4087en_AU
local.identifier.scopusID2-s2.0-84928045676
local.identifier.uidSubmittedByu3488905en_AU
local.type.statusPublished Versionen_AU

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