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. Author manuscript; available in PMC: 2008 Sep 26.
Published in final edited form as: J Am Soc Mass Spectrom. 2008 Jan;19(1):96–102. doi: 10.1016/j.jasms.2007.10.020

Figure 2.

Figure 2

(a) Optical image of LB20 film with a crater in the middle which is created after C60+ depth profiling (the crater is the grey area, which is surrounded by blue uneroded area); (b) AFM measurements of LB20 films with a crater which is formed by C60+ depth profiling.