http://www.cnr.it/ontology/cnr/individuo/prodotto/ID54114
Memory applications of a thiophene-based conjugated polymer: capacitance measurements (Articolo in rivista)
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- Label
- Memory applications of a thiophene-based conjugated polymer: capacitance measurements (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Majumdar H.S., Bolognesi A., Pal A.J. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Titolo
- Memory applications of a thiophene-based conjugated polymer: capacitance measurements (literal)
- Abstract
- Conjugated polymers have been used in data-storage devices. A state has been written by
applying a voltage pulse. The state of the device has been read from the current under a small
probe voltage ~0.2 V!. The polymer retained the state for more than 1 h which can be refreshed or
erased at will. The stored space charges under a voltage pulse have been found to control the charge
injection and hence the device current. Their slow relaxation process has resulted in the use of
conjugated polymers in memory device applications. Hysteresis-type behavior has been observed in
the currentvoltage characteristics. The density of stored charges at the polymer layer near the
metal/polymer interface has been found to depend on the voltage amplitude. The relaxation of the
stored charges has been studied by applying two voltage pulses. By varying the delay between the
two pulses, during which the space charges relax or redistribute, the time constant for charge
relaxation has been calculated. The time constant was found to be independent of the density of the
(literal)
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