Label – Free Detection of Deoxyribonucleic Acids (DNA) Hybridisation on 2D materials : Graphene and MoS2
博士 === 國立交通大學 === 材料科學與工程學系所 === 102 === 本論文主要是針對於無標記感測器的應用,以石墨烯和二硫化鉬等二維材料,探討其作為DNA感測器的特性研究。首先,利用化學氣相沉積方式,在大面積的單層石墨烯上,製造出以石墨烯為基底,具有高跨導且低雜訊的場效電晶體。此元件結構可以作為一個DNA感測器,若搭配最佳化的閘極材料、緩衝液濃度與石墨烯表面狀況,偵測敏感度可達到1pM (10-12M)。研究顯示以往為了增加石墨烯傳導特性,利用聚酸甲酯(PMMA)的表面處理技術中,表面殘留的PMMA將會減弱石墨烯的感測性能。此外,若利用金製備石墨烯的感測樣品,其傳導特性將會提升12...
Main Authors: | Phan Thi Kim Loan, 方蓉 |
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Other Authors: | Wei, Kung-Hwa |
Format: | Others |
Language: | en_US |
Published: |
2014
|
Online Access: | http://ndltd.ncl.edu.tw/handle/gy6h73 |
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