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Design of wave-optical structured substrates for ultra-thin perovskite solar cells

2020-09Artigo científico Acesso aberto
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dc.contributor.authorHaque, Sirazul
dc.contributor.authorAlexandre, Miguel
dc.contributor.authorMendes, Manuel J.
dc.contributor.authorÁguas, Hugo
dc.contributor.authorFortunato, Elvira
dc.contributor.authorMartins, Rodrigo
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.pblElsevier
dc.date.accessioned2021-04-21T22:41:03Z
dc.date.available2022-03-06T01:31:26Z
dc.date.embargoedUntil2021-09-01
dc.date.issued2020-09
dc.descriptiongrant agreement No 763989 UID/CTM/50025/2019 PTDC/NAN-OPT/28430/2017 PD/BD/143031/2018 SFRH/BD/148078/2019
dc.description.abstractPhotonic micro/nano-structures in the wave-optics regime have shown to be a promising strategy for effective broadband light capture in ultra-thin devices, opening a window of opportunity for cheap, efficient, lightweight and flexible photovoltaics (PV). Here we design, from an optical standpoint, a novel industrially-attractive concept where light trapping is obtained by conformably depositing the solar cell materials onto previously-patterned photonic substrates. This solution is applied and optimized for perovskite solar cells (PSCs) with distinct thicknesses of the perovskite absorber - the conventional (500 nm) and ultra-thin (300 nm) in view of enhanced flexibility - yielding photocurrent improvements up to 22.8% in superstrate cell configuration and 24.4% in substrate-type configuration; thereby coming relatively close to the fundamental Lambertian limits. Furthermore, these structures also show an omni-direction optical response for incidence angles up to 70° for all cases, therefore demonstrating the viability of this light trapping method for implementation in flexible PV devices operating under bending. The photonic-enhanced ultra-thin solar cells designed here ultimately support the reduction of material usage in PSC technology, which is especially beneficial to mitigate lead usage, without impacting the device's performance.en
dc.description.versionpreprint
dc.description.versionpublished
dc.format.extent1358155
dc.identifier.doi10.1016/j.apmt.2020.100720
dc.identifier.issn2352-9407
dc.identifier.otherPURE: 18764057
dc.identifier.otherPURE UUID: afc94de7-5e9c-4951-a4b3-4419c8ab8023
dc.identifier.otherScopus: 85086499623
dc.identifier.otherORCID: /0000-0001-7350-649X/work/82300195
dc.identifier.otherORCID: /0000-0002-4202-7047/work/82301320
dc.identifier.otherORCID: /0000-0002-7374-0726/work/82301581
dc.identifier.urihttp://hdl.handle.net/10362/115948
dc.identifier.urlhttps://www.scopus.com/pages/publications/85086499623
dc.language.isoeng
dc.peerreviewedyes
dc.subjectFlexibility and photocurrent enhancement
dc.subjectLight trapping
dc.subjectPerovskite solar cells
dc.subjectPhotonics
dc.subjectPhotovoltaics
dc.subjectGeneral Materials Science
dc.titleDesign of wave-optical structured substrates for ultra-thin perovskite solar cellsen
dc.typejournal article
degois.publication.titleApplied Materials Today
degois.publication.volume20
dspace.entity.typePublication
rcaap.rightsopenAccess

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