How to prepare the cross section of sem graphene film

Bachier (in-station contact TA) is no joke. There are many SEM images of graphene. I don't make graphene either. We do. Graphene is a conductive material. It doesn't matter if you don't need to spray gold powder (contact TA in the station). I remember that the graphene SEM in the laboratory was also gold-sprayed. Xiejf (in-sTAtion contact ta) has good conductivity. Don't spray gold Spraying it will affect the accuracy of qualitative analysis. Wulishi8 (in-station contact TA) Graphene is conductive and does not need to be sprayed with gold. You don't have to spray it. It looks okay. The conductivity of Go and RGO is enough. (Contact TA in the station) There is no need to do SEM for GO and graphene. AFM and TEM are useful, but SEM is really useless. Except that it may be necessary to observe the load or specific form, it is not necessary to spray jiji 188 (contact TA in the station). In our laboratory, it is usually dripped on ITO and photographed directly by SEM, and the effect is not bad. In the dream day (conTAct ta in the station), I sprayed gold when I was doing characterization, and it was quite clear after reading it. I haven't tried not to spray gold zmcai (conTAct ta in the station). Is there something wrong with your SEM? Scanning electron microscope We usually draw electrodes directly on the silicon wafer without spraying gold. If gold is sprayed, the conductivity will be better, but if it is not well controlled, large particles of gold may be seen, which will also affect the qualitative analysis. Zhou Zhixin (contact TA in the station) does not need to spray gold, but drops it directly on the silicon wafer, mainly depending on the particle size of your graphene. If it is too small, we can't see any useful information. Fluoro (in-station contact TA) We don't spray graphite, and the effect is quite clear. Su Xi Buruo (contact TA in the station) does not need to spray gold, so it has good conductivity. Yjiaahedu (in-station contact TA) can be characterized by SEM, and there is no need to evaporate gold. If wrinkles are observed, it means that there are fewer layers, but it is impossible to determine whether it is graphene or graphite flake. Need HRTEM and Raman spectroscopy (wave number 50-3000):Dyy Qiushui (contact TA in the station) Haha, there is no need to spray gold, as long as your substrate can conduct electricity. If it is on a silicon dioxide substrate, the SEM image is black, but after amplification, some details of Weiwei (station contact TA) can still be seen without spraying gold. Graphene is dispersed with water and thin enough (almost no color can be seen).