DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Eun Kwang | - |
dc.contributor.author | Kim, Yonghee | - |
dc.contributor.author | Back, Jisu | - |
dc.contributor.author | Lee, Eunsung | - |
dc.contributor.author | Oh, Joon Hak | - |
dc.date.accessioned | 2019-07-04T09:10:55Z | - |
dc.date.available | 2019-07-04T09:10:55Z | - |
dc.date.created | 2018-08-06 | - |
dc.date.issued | 2018-07 | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/99273 | - |
dc.description.abstract | Air-stable and heating-free doping processes are highly desirable for realizing advanced flexible electronics on plastic substrates. A synthetic protocol for a high-performance n-type organic dopant using an organic cationic dye, Pyronin B, via a simple chemical reduction method with NaBH4 in various organic non-polar solvents is developed, in which the cationic dye Pyronin B is transformed into its leuco form. The reduced Pyronin B (rPyB, leuco form) spontaneously interacts with carbon nanomaterials, such as graphene and [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM), via hydride-mediated electron transfer doping, which is confirmed by electron spin resonance (ESR) analysis. After coating rPyB onto graphene, the non-polar solvents are removed by simple evacuation (similar to 1 x 10(-3) Torr) without an annealing step. The work function of graphene is reduced from 4.52 eV to 3.98 eV after doping. Multiple coatings of rPyB on graphene field-effect transistors (FETs) result in air stability for 90 days under ambient conditions. Selective n-type doping using a polydimethylsiloxane (PDMS) stamp and rPyB has also been performed on a large-area 16 x 16 graphene FET array. Our findings demonstrate a viable methodology for the cost-effective synthesis of an n-type dopant and its application in soft electronics. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.title | Reduced Pyronin B as a solution-processable and heating-free n-type dopant for soft electronics | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/c8tc02094a | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY C, v.6, no.25, pp.6672 - 6679 | - |
dc.identifier.wosid | 000436818100007 | - |
dc.citation.endPage | 6679 | - |
dc.citation.number | 25 | - |
dc.citation.startPage | 6672 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.volume | 6 | - |
dc.contributor.affiliatedAuthor | Lee, Eun Kwang | - |
dc.contributor.affiliatedAuthor | Lee, Eunsung | - |
dc.contributor.affiliatedAuthor | Oh, Joon Hak | - |
dc.identifier.scopusid | 2-s2.0-85049351256 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | THIN-FILM TRANSISTORS | - |
dc.subject.keywordPlus | AIR-STABLE ORGANOMETALLICS | - |
dc.subject.keywordPlus | ORGANIC SEMICONDUCTORS | - |
dc.subject.keywordPlus | RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | DIRAC POINT | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | HETEROSTRUCTURES | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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