Low-voltage, high-performance polymeric field-effect transistors based on self-assembled monolayer-passivated HfOx dielectrics: Correlation between trap density, carrier mobility, and operation voltage
DC Field | Value | Language |
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dc.contributor.author | Kim, Dae-Kyu | - |
dc.contributor.author | Lee, Myeongjae | - |
dc.contributor.author | Kim, BongSoo | - |
dc.contributor.author | Choi, Jong-Ho | - |
dc.date.accessioned | 2021-09-01T01:46:33Z | - |
dc.date.available | 2021-09-01T01:46:33Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-11 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/62114 | - |
dc.description.abstract | We report on high-performance polymeric field-effect transistors (PFETs) operating at low voltages (V-op) using a self-assembled monolayer (SAM)-passivated HfOx dielectric layer. A diketopyrrolopyrrole and quaterthiophene-based copolymer (PDPP2DT-T2) was spin-coated in air as an active channel material on top of a HfOx gate dielectric that was passivated with n-octyltrichlorosilane (OTS), n-octadecyltrichlorosilane (ODTS), and n-dodecylphosphonic acid (PAC12) SAMs. The high capacitance and low leakage current of the SAM-passivated HfOx dielectrics enabled the devices to operate at vertical bar V-op vertical bar of less than 4 V. In particular, the PFETs using ODTS-passivated HfOx demonstrated a high hole mobility (mu(h)(eff)) of 1.98 cm(2) V-1 s(-1), a current on/off ratio of 1.4 x 10(4), and a threshold voltage of -0.8 V despite the fact that the device fabrication and all measurements were conducted under ambient conditions without encapsulation. Moreover, the mu(h)(eff) value observed in this study is the best for high-k-dielectric-based low-voltage PFETs reported to date. This work demonstrates that our facile modification of high-k dielectrics with SAMs is a highly effective method for realizing high-performance semiconducting copolymer-based transistors working at a low V-op regime with low power consumption. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | THIN-FILM TRANSISTORS | - |
dc.subject | GATE DIELECTRICS | - |
dc.subject | HYBRID DIELECTRICS | - |
dc.subject | HAFNIUM OXIDE | - |
dc.subject | DIKETOPYRROLOPYRROLE | - |
dc.subject | COPOLYMER | - |
dc.subject | SEMICONDUCTORS | - |
dc.subject | ELECTRODE | - |
dc.title | Low-voltage, high-performance polymeric field-effect transistors based on self-assembled monolayer-passivated HfOx dielectrics: Correlation between trap density, carrier mobility, and operation voltage | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Jong-Ho | - |
dc.identifier.doi | 10.1016/j.orgel.2019.06.036 | - |
dc.identifier.scopusid | 2-s2.0-85068409148 | - |
dc.identifier.wosid | 000485015600020 | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.74, pp.135 - 143 | - |
dc.relation.isPartOf | ORGANIC ELECTRONICS | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 74 | - |
dc.citation.startPage | 135 | - |
dc.citation.endPage | 143 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | THIN-FILM TRANSISTORS | - |
dc.subject.keywordPlus | GATE DIELECTRICS | - |
dc.subject.keywordPlus | HYBRID DIELECTRICS | - |
dc.subject.keywordPlus | HAFNIUM OXIDE | - |
dc.subject.keywordPlus | DIKETOPYRROLOPYRROLE | - |
dc.subject.keywordPlus | COPOLYMER | - |
dc.subject.keywordPlus | SEMICONDUCTORS | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.subject.keywordAuthor | Organic electronics | - |
dc.subject.keywordAuthor | Conjugated polymers | - |
dc.subject.keywordAuthor | Polymer field effect transistors | - |
dc.subject.keywordAuthor | Carrier mobility | - |
dc.subject.keywordAuthor | Crystallinity | - |
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