Synthesis of Interface-Driven Tunable Bandgap Metal Oxides

dc.contributor.author Rossini, Aaron
dc.contributor.author Chang, Boyce
dc.contributor.author Martin, Andrew
dc.contributor.author Thomas, Brijith
dc.contributor.author Li, Ang
dc.contributor.author Thuo, Martin
dc.contributor.author Dorn, Rick
dc.contributor.author Gong, Jinlong
dc.contributor.author Rossini, Aaron
dc.contributor.author Thuo, Martin
dc.contributor.department Ames Laboratory
dc.contributor.department Electrical and Computer Engineering
dc.contributor.department Materials Science and Engineering
dc.contributor.department Chemistry
dc.contributor.department Microelectronics Research Center (MRC)
dc.date 2020-10-30T17:39:11.000
dc.date.accessioned 2021-02-24T22:51:33Z
dc.date.available 2021-02-24T22:51:33Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2020
dc.date.issued 2020-08-17
dc.description.abstract <p>Mixed bandgap and bandgap tunability in semiconductors is critical in expanding their use. Composition alterations through single-crystal epitaxial growth and the formation of multilayer tandem structures are often employed to achieve mixed bandgaps, albeit with limited tunability. Herein, self-assembled one-dimensional coordination polymers provide facile synthons and templates for graphitic C-doped mesoporous oxides, gC-β-Ga2O3 or gC-In2O3 via controlled oxidative ligand ablation. These materials have mixed bandgaps and colors, depending on amount of gC present. The carbon/oxide interface leads to induced gap states, hence, a stoichiometrically tunable band structure. Structurally, a multiscale porous network percolating throughout the material is realized. The nature of the heat treatment and the top-down process allows for facile tunability and the formation of mixed bandgap metal oxides through controlled carbon deposition. As a proof of concept, gC-β-Ga2O3 was utilized as a photocatalyst for CO2 reduction, which demonstrated excellent conversion rates into CH4 and CO.</p>
dc.description.comments <p>This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in <em>ACS Materials Letters</em>, copyright © American Chemical Society after peer review. To access the final edited and published work see DOI: <a href="https://doi.org/10.1021/acsmaterialslett.0c00251" target="_blank">10.1021/acsmaterialslett.0c00251</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/chem_pubs/1253/
dc.identifier.articleid 2258
dc.identifier.contextkey 19235584
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath chem_pubs/1253
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/93630
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/chem_pubs/1253/2020_RossiniAaron_SynthesisInterface.pdf|||Fri Jan 14 19:23:54 UTC 2022
dc.source.uri 10.1021/acsmaterialslett.0c00251
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.disciplines Materials Chemistry
dc.subject.disciplines Metallurgy
dc.title Synthesis of Interface-Driven Tunable Bandgap Metal Oxides
dc.type article
dc.type.genre article
dspace.entity.type Publication
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