Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 박지영 | - |
dc.date.accessioned | 2024-08-26T00:14:45Z | - |
dc.date.available | 2024-08-26T00:14:45Z | - |
dc.date.issued | 2022-06 | - |
dc.identifier.citation | JOURNAL OF HAZARDOUS MATERIALS, v. 438, article no. 129412, page. 1-11 | en_US |
dc.identifier.issn | 0304-3894 | en_US |
dc.identifier.issn | 1873-3336 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0304389422012055?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/191789 | - |
dc.description.abstract | A suitable and non-invasive methanol sensor workable in ambient temperature conditions with a high response has gained wide interest to prevent detrimental consequences for industrial workers from its low-level intoxication. In this work, we present a tunable and highly responsive ppb-level methanol gas sensor device working at room temperature via a bottom-up synthetic approach using exfoliated graphene sheet (EGs) and ZnO quantum dots (QDs) on an aluminum anodic oxide (AAO) template. It is verified that EGs-supported AAO with a vertical electrode configuration enabled high and fast-responsive methanol sensing. Moreover, the hydroxyl and carboxyl groups of the high surface area EGs and ZnO QDs with a 3.37 eV bandgap efficiently absorbing UV light led to 56 times high response due to the enhanced polarization on the sensor surface compared to non-UV-radiated EGs/ AAO at 800 ppb of methanol. The optimal resonance frequency of methanol is determined to be 100 kHz, which could detect methanol with high response of 2.65% at 100 ppm. The limit of detection (LOD) concentration is | en_US |
dc.description.sponsorship | This work was supported by the Industrial Strategic Technology Development Program (20010460, Developing the Ceramic ALD Pre- cursors with high corrosion resistance and Core Parts of Deposition Etching Equipments for High -Density Semiconductors) and Industrial Strategic Technology Development Program (20010501, Development of Guide Plate for AP Probe Card and MLA Board for DRAM Probe Card Using by AAO Substrate) and funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). | en_US |
dc.language | en_US | en_US |
dc.publisher | ELSEVIER | en_US |
dc.relation.ispartofseries | v. 438, article no. 129412;1-11 | - |
dc.subject | Elsevier BV | en_US |
dc.subject | Capacitive gas sensor | en_US |
dc.subject | Methanol sensor | en_US |
dc.subject | Exfoliated graphene sheets | en_US |
dc.title | Tuning the sensing responses towards room-temperature hypersensitive methanol gas sensor using exfoliated graphene-enhanced ZnO quantum dot nanostructures | en_US |
dc.type | Article | en_US |
dc.relation.volume | 438 | - |
dc.identifier.doi | 10.1016/j.jhazmat.2022.129412 | en_US |
dc.relation.page | 1-11 | - |
dc.relation.journal | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.contributor.googleauthor | Park, Ji Young | - |
dc.contributor.googleauthor | Kwak, Yeonsu | - |
dc.contributor.googleauthor | Lim, Hyo-Ryoung | - |
dc.contributor.googleauthor | Park, Si-Woo | - |
dc.contributor.googleauthor | Lim, Min Seob | - |
dc.contributor.googleauthor | Cho, Hong-Baek | - |
dc.contributor.googleauthor | Myung, Nosang Vincent | - |
dc.contributor.googleauthor | Choa, Yong-Ho | - |
dc.relation.code | 2022035123 | - |
dc.sector.campus | E | - |
dc.sector.daehak | EXECUTIVE VICE PRESIDENT FOR ERICA[E] | - |
dc.sector.department | INSTITUTE FOR ERICA CONVERGENCE | - |
dc.identifier.pid | jiyoung3073 | - |
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