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The loss of electronic conductivity of -doped poly(3,4-ethylenedioxythiophene) at high electrical bias is shown to be chemically reversible upon redoping with iodine vapor. This provides further confirmation that the initial loss of conductivity arises from the injection-induced dedoping mechanism. Repeat “write-erase” cycles are possible, which gives a rudimentary organic chemically erasable programmable read-only memory. Transient measurements show that the write time (i.e., time for loss of conductivity) decreases from thousands of seconds just above the critical electric field of to millisecond well above this value but below the onset of electrochemical destruction.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Chemical reversability of the electrical dedoping of conducting polymers: An organic chemically erasable programmable read-only memory