纳米线
材料科学
纳米技术
热传导
光电子学
不稳定性
导电体
复合材料
机械
物理
作者
Jia Zhou,Lei Hu,Manman Xia,Yixuan Du,Yunbo Li
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2023-07-22
卷期号:6 (15): 14439-14446
被引量:2
标识
DOI:10.1021/acsanm.3c02482
摘要
Ultrathin gold nanowires (AuNWs) play an important role in wearable devices, biological detection, and other fields. However, their applications in transparent conduction are limited due to high junction resistance caused by the oleyamine (OAm) ligand and structural instability caused by Rayleigh instability. A treatment method has been proposed to eliminate these two defects via a hydrogen sulfide (H2S) atmosphere and heat treatment. The nanowires are subjected to heat treatment in a hydrogen sulfide atmosphere, which induces the nanowires to fracture into gold particles (AuNPs) and evolve into a stable spider-web-like structure. As a result, the conductivity of the treated film is significantly improved, reaching 65 Ω/sq at 120 °C, 50 min, and 1000 ppm of H2S. The electrical properties of the film can be maintained for more than one month. This method suggests a promising approach to ultrathin AuNWs for excellent improvement of electronic conduction and stability, which can be used in wearable devices.
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