多组分氧化石墨烯分散体用于薄还原氧化石墨烯薄膜的形成

IF 3.5 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
E. A. Danilov, M. V. Kharlamova, A. V. Guschin, E. N. Dinkova, K. A. Rayanova, S. I. Babenko, A. S. Bryleva, O. A. Kudryavtsev, L. I. Slaitrinnik, M. I. Trukhanova, I. A. Komarov
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引用次数: 0

摘要

润湿性不足是阻碍基于碳纳米材料的柔性有机电子器件发展的重要障碍之一。这对氧化石墨烯尤其重要,因为商业上可用的氧化石墨烯通常以水悬浮液的形式提供。我们展示了通过在市售的氧化石墨烯悬浮液中添加n -甲基吡咯烷酮、二甲基乙酰胺和两种漆漆稀释剂等额外成分来改善氧化石墨烯悬浮液润湿性能的可能性。在所有情况下,成功地减少了接触角。我们还研究了附加成分对蒸发时间的影响,蒸发时间对于使用旋转涂层形成薄而均匀的薄膜很重要。分散介质组分的蒸发时间从3倍到40倍以上不等。n -甲基吡咯烷酮和二甲基乙酰胺悬浮液的稳定性也已被证明超过2个月,而使用油漆稀释剂时约为1.5个月。在0.93 mg/ml的悬浮液中加入涂漆稀释剂,成功沉积并还原氧化石墨烯薄膜,用于BGTE晶体管的形成。还原氧化石墨烯薄膜作为n型半导体具有2−8 × 10-3 cm2/V*s−1迁移率。用还原氧化石墨烯膜固定适体形成生物传感器,在0.1 ~ 5µM范围内对凝血酶选择性敏感,反应时间为35 ~ 80 s。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multicomponent graphene oxide dispersions for thin reduced graphene oxide film formation

Insufficient wettability is one of the significant obstacles to the development of flexible and organic electronic devices based on carbon nanomaterials. It is especially important for graphene oxide, since commercially available graphene oxide is often provided in the form of aqueous suspensions. We showed the possibility of improvement of graphene oxide suspension wetting properties by adding such extra components as N-methylpyrrolidone, dimethylacetamide, and two types of thinners for lacquer paints to commercially available graphene oxide suspensions. In all cases, successful decrease of the contact angle was demonstrated. We also studied the effect of additional components on evaporation time that is important for formation of thin, uniform films using spin coating. Evaporation time of dispersion media components can vary from 3 to more than 40 times. The stability of suspensions with N-methylpyrrolidone and dimethylacetamide has also been demonstrated for more than 2 months and about 1.5 months when using a thinner for lacquer paints. Graphene oxide film from 0.93 mg/ml suspension with lacquer thinner was successfully deposited and reduced for BGTE transistor formation. Reduced GO film acted as an n-type semiconductor with 2 − 8 × 10–3 cm2/V*s−1 mobility. Reduced GO film was also used for aptamer immobilization to form biosensor, selectively sensitive to thrombin in 0.1–5 µM range with 35–80 s response time.

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来源期刊
Journal of Materials Science
Journal of Materials Science 工程技术-材料科学:综合
CiteScore
7.90
自引率
4.40%
发文量
1297
审稿时长
2.4 months
期刊介绍: The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.
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