Figure 4
From: Contamination-free graphene by chemical vapor deposition in quartz furnaces
(a) Schematics of the modified configuration of the low-pressure CVD system with a coaxial alumina screen tube. The boat is inserted and extracted from the hot zone as in the original configuration (see Experimental). (b) Graphic design and (c) photographic image of the tantalum boat with lid (12 cm in length).
