Figure 3
I-V curves of the LLM-105 nanosheets and patterns on nanosheets.
(a) the I-V curve of the LLM-105 nanosheet on HOPG at a voltage ranged from −1.0~1.0 V conducted by a conductive AFM tip at a load of 1 nN. There are ten almost overlapping curves that indicate the nanosheet is stable under the voltage less than 1.0 V. (b) I-V characters of the nanosheet at large bias scale with the same tip and load as a. Ten curves are similar and it is showed that the nanosheet becomes unstable when the voltages surpass 1.5 V. Further rise in voltage will lead to nanosheet break, which provides the possibility of pattern fabrication in LLM-105 nanosheets. (c) Dynamic force microscope (DFM) topographical of LLM-105 nanosheet on HOPG, the dark squares in nanosheet in regions of 50 nm×50 nm and 200 nm×200 nm were scanned at bias value of 5 V with conductive AFM. (d) The logo pattern of our institute, ICM, wrote on an explosive nanosheet of LLM-105. “ICM” is the abbreviation of “Institute of Chemical Materials”.
