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Contact potential differences measurement: short history and experimental setup for classroom demonstration

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3 Author(s)

Methods for the measurement of contact potential differences (CPDs) are discussed from a historical point of view. In addition, a simple experimental setup using common laboratory equipment is presented. Experimental results show, for instance, that the measured CPDs between platinum and nickel can be very close to those obtained using sophisticated equipment. Moreover, it is demonstrated that the implemented method, though very simple, is suitable for surface mapping.

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Education, IEEE Transactions on  (Volume:46 ,  Issue: 3 )