Graphene-mediated enhanced Raman scattering and coherent light lasing from CsPbI3 perovskite nanorods
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jung-Hye | - |
dc.contributor.author | Quyet Van Le | - |
dc.contributor.author | Thang Phan Nguyen | - |
dc.contributor.author | Lee, Tae Hyung | - |
dc.contributor.author | Jang, Ho Won | - |
dc.contributor.author | Yun, Won Seok | - |
dc.contributor.author | Jeong, Soon Moon | - |
dc.contributor.author | Lee, JaeDong | - |
dc.contributor.author | Kim, Soo Young | - |
dc.contributor.author | Kim, Hyunmin | - |
dc.date.accessioned | 2021-08-31T04:50:35Z | - |
dc.date.available | 2021-08-31T04:50:35Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-04 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/56794 | - |
dc.description.abstract | Graphene-enhanced Raman scattering has been studied as an optical technique related to the selective electron transfer from graphene to the valence band of the contacted molecule, inducing a pileup of electrons within the conduction band and a "photogating effect" for subsequently illuminated light. Herein, we studied the Raman spectroscopy of CsPbI3 nanorods sandwiched between two layers of graphene, revealing that weak coherent lasing also occurs. The photoluminescence intensity of alpha-phase CsPbI3 nanorods drastically decreased with increasing graphene coverage, particularly on the top, leading to Raman modes at the first (similar to 241 and similar to 312 cm(-1)) and second (similar to 640 cm(-1)) overtones of polymeric iodides, as well as at similar to 3492 cm(-1). First-principle calculations reveal that the similar to 3492-cm(-1) mode originates from the stimulated coherent light emissions of the highly populated electrons accumulated in the CsPbI3 conduction band, which form because of the electronic resonance induced in the Pb and I degenerate states. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | LEAD HALIDE PEROVSKITES | - |
dc.subject | SINGLE | - |
dc.subject | SPECTROSCOPY | - |
dc.subject | EMISSION | - |
dc.subject | BR | - |
dc.subject | CL | - |
dc.title | Graphene-mediated enhanced Raman scattering and coherent light lasing from CsPbI3 perovskite nanorods | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Soo Young | - |
dc.identifier.doi | 10.1016/j.nanoen.2020.104497 | - |
dc.identifier.scopusid | 2-s2.0-85078202965 | - |
dc.identifier.wosid | 000521052900042 | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.70 | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 70 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | LEAD HALIDE PEROVSKITES | - |
dc.subject.keywordPlus | SINGLE | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | BR | - |
dc.subject.keywordPlus | CL | - |
dc.subject.keywordAuthor | Perovskite nanorods | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | SERS | - |
dc.subject.keywordAuthor | Raman | - |
dc.subject.keywordAuthor | Luminescence | - |
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