Highly concentrated dispersion of methyl-terminated germanane by liquid exfoliation
Highly concentrated dispersion of methyl-terminated germanane by liquid exfoliation
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DOI：
10.7567/1347-4065/ab3875
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发表时间：
2019-09
影响因子：
1.5
通讯作者：
H. Tachibana;N. Toda;N. Takada;R. Azumi
中科院分区：
文献类型：
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作者：
H. Tachibana;N. Toda;N. Takada;R. Azumi
我们发现端甲基层状锗烷（GeCH3）通过液体剥离在卤代溶剂中分散良好，可稳定放置半年以上。使用电子显微镜和光学光谱对 GeCH3 分散体及其流延膜进行了表征，结果表明 GeCH3 剥离成几十层，横向尺寸为几百纳米，厚度为几十纳米。通过液体剥离产生的 GeCH3 分散体开辟了通过溶液工艺制造薄膜器件的潜在途径。
We have found that methyl-terminated layered germanane (GeCH3) is well dispersed in halogenated solvents by liquid exfoliation, which stands stably for more than half a year. GeCH3 dispersions and their cast films were characterized using electron microscopy and optical spectroscopies, which revealed the exfoliation of GeCH3 into a few tens of layers with lateral dimensions of a few hundred nanometers and a thickness of a few tens of nanometers. The resulting dispersion of GeCH3 by liquid exfoliation opens up a potential route to fabricate thin-film devices by a solution process.