Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method

We report a novel graphene transfer technique for fabricating graphene field-effect transistors (FETs) that avoids detrimental organic contamination on a graphene surface. Instead of using an organic supporting film like poly(methyl methacrylate) (PMMA) for graphene transfer, Au film is directly dep...

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Main Authors: Yamujin Jang, Young-Min Seo, Hyeon-Sik Jang, Keun Heo, Dongmok Whang
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/21/7262
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author Yamujin Jang
Young-Min Seo
Hyeon-Sik Jang
Keun Heo
Dongmok Whang
author_facet Yamujin Jang
Young-Min Seo
Hyeon-Sik Jang
Keun Heo
Dongmok Whang
author_sort Yamujin Jang
collection DOAJ
description We report a novel graphene transfer technique for fabricating graphene field-effect transistors (FETs) that avoids detrimental organic contamination on a graphene surface. Instead of using an organic supporting film like poly(methyl methacrylate) (PMMA) for graphene transfer, Au film is directly deposited on the as-grown graphene substrate. Graphene FETs fabricated using the established organic film transfer method are easily contaminated by organic residues, while Au film protects graphene channels from these contaminants. In addition, this method can also simplify the device fabrication process, as the Au film acts as an electrode. We successfully fabricated graphene FETs with a clean surface and improved electrical properties using this Au-assisted transfer method.
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spelling doaj.art-9a26b7fbeecb49fc8444a6a06de6dd432023-11-22T21:39:01ZengMDPI AGSensors1424-82202021-10-012121726210.3390/s21217262Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer MethodYamujin Jang0Young-Min Seo1Hyeon-Sik Jang2Keun Heo3Dongmok Whang4School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, KoreaInstitute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonju 55324, KoreaInstitute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonju 55324, KoreaSchool of Semiconductor and Chemical Engineering, Jeonbuk National University, Jeonju 54896, KoreaSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, KoreaWe report a novel graphene transfer technique for fabricating graphene field-effect transistors (FETs) that avoids detrimental organic contamination on a graphene surface. Instead of using an organic supporting film like poly(methyl methacrylate) (PMMA) for graphene transfer, Au film is directly deposited on the as-grown graphene substrate. Graphene FETs fabricated using the established organic film transfer method are easily contaminated by organic residues, while Au film protects graphene channels from these contaminants. In addition, this method can also simplify the device fabrication process, as the Au film acts as an electrode. We successfully fabricated graphene FETs with a clean surface and improved electrical properties using this Au-assisted transfer method.https://www.mdpi.com/1424-8220/21/21/7262graphenefield-effect transistorgraphene transferelectrical property
spellingShingle Yamujin Jang
Young-Min Seo
Hyeon-Sik Jang
Keun Heo
Dongmok Whang
Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method
Sensors
graphene
field-effect transistor
graphene transfer
electrical property
title Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method
title_full Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method
title_fullStr Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method
title_full_unstemmed Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method
title_short Performance Improvement of Residue-Free Graphene Field-Effect Transistor Using Au-Assisted Transfer Method
title_sort performance improvement of residue free graphene field effect transistor using au assisted transfer method
topic graphene
field-effect transistor
graphene transfer
electrical property
url https://www.mdpi.com/1424-8220/21/21/7262
work_keys_str_mv AT yamujinjang performanceimprovementofresiduefreegraphenefieldeffecttransistorusingauassistedtransfermethod
AT youngminseo performanceimprovementofresiduefreegraphenefieldeffecttransistorusingauassistedtransfermethod
AT hyeonsikjang performanceimprovementofresiduefreegraphenefieldeffecttransistorusingauassistedtransfermethod
AT keunheo performanceimprovementofresiduefreegraphenefieldeffecttransistorusingauassistedtransfermethod
AT dongmokwhang performanceimprovementofresiduefreegraphenefieldeffecttransistorusingauassistedtransfermethod