Fig. 4 | Nature Communications

Fig. 4

From: Gas identification with graphene plasmons

Fig. 4

Identification of gas molecules during chemical reactions. From bottom to top: plasmon-enhanced molecular signals in a chamber filled with no gas (i.e. vacuum), 1 min and 1.5 min after O2 input. We corroborated the direct observation of the oxidation of NO to NO2

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