Highly concentrated dispersion of methyl-terminated germanane by liquid exfoliation

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 reveale...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 58; no. 10; pp. 105002 - 105006
Main Authors Tachibana, Hiroaki, Toda, Naoya, Takada, Noriyuki, Azumi, Reiko
Format Journal Article
LanguageEnglish
Published Tokyo IOP Publishing 01.10.2019
Japanese Journal of Applied Physics
Subjects
Exfoliation
Thickness
Thin films
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Summary: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.
Bibliography:JJAP-101666.R1
ISSN:0021-4922
1347-4065
DOI:10.7567/1347-4065/ab3875