Synthesis of Cobalt-Doped TiO2 Based on Metal-Organic Frameworks as an Effective Electron Transport Material in Perovskite Solar Cells
DC Field | Value | Language |
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dc.contributor.author | Thi My Huyen Nguyen | - |
dc.contributor.author | Bark, Chung Wung | - |
dc.date.available | 2020-04-06T06:38:21Z | - |
dc.date.created | 2020-04-02 | - |
dc.date.issued | 2020-02 | - |
dc.identifier.issn | 2470-1343 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/26116 | - |
dc.description.abstract | In this study, Co-doped TiO2 was prepared successfully using a solvothermal method with trimesic acid (H3BTC) as an organic framework to form the Co-doped Ti metal-organic framework (Co-doped Ti-MOF). By thermally decomposing the Co-doped Ti-MOF in air, the framework template was removed, and porous Co-doped TiO2 was obtained. The crystal structure of the material was analyzed using X-ray diffraction. The morphology was examined using scanning electron microscopy (SEM) and focused ion beam SEM. The large specific surface area was determined to be 135.95 m(2) g(-1) using Brunauer-Emmett-Teller theory. Fourier transform infrared spectroscopy verified the presence of Ti-O-Ti and Co-O vibrations in the as-prepared sample. Furthermore, the results of UV-vis spectroscopy showed that doping with Co remarkably improved the absorption ability of Ti-MOF toward the visible-light region with a band gap energy of 2.38 eV (lambda = 502 nm). Steady-state photoluminescence and electrochemical impedance spectroscopy were conducted to illustrate the improvement of electron transfer in the doped material further. The optimum power conversion efficiency of solar cells using 1 wt % Co-doped TiO2 as an electron transport layer was found to be 15.75%, while that of solar cells using commercial dyesol TiO2 is only 14.42%. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS OMEGA | - |
dc.title | Synthesis of Cobalt-Doped TiO2 Based on Metal-Organic Frameworks as an Effective Electron Transport Material in Perovskite Solar Cells | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000513942200026 | - |
dc.identifier.doi | 10.1021/acsomega.9b03507 | - |
dc.identifier.bibliographicCitation | ACS OMEGA, v.5, no.5, pp.2280 - 2286 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85079032026 | - |
dc.citation.endPage | 2286 | - |
dc.citation.startPage | 2280 | - |
dc.citation.title | ACS OMEGA | - |
dc.citation.volume | 5 | - |
dc.citation.number | 5 | - |
dc.contributor.affiliatedAuthor | Thi My Huyen Nguyen | - |
dc.contributor.affiliatedAuthor | Bark, Chung Wung | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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