Resistance of polyaniline films as a function of electrochemical potential and the fabrication of polyaniline-based microelectronic devices

Paul, Elizabeth W.; Ricco, Antonio J.; Wrighton, Mark S.

doi:10.1021/j100254a028

Cited by 1,018 publications

(445 citation statements)

References 1 publication

(1 reference statement)

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“…8(a). 7,58,79 These regions can be controlled as independent working electrodes. Then it is possible to govern the Fermi level in the film with a bias U 1 D U 2 as in Fig.…”

Section: Basic Features Of Nanostructured Electrochemical Devicesmentioning

confidence: 99%

Physical electrochemistry of nanostructured devices

Bisquert

2008

Phys. Chem. Chem. Phys.

236

267

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“…8(a). 7,58,79 These regions can be controlled as independent working electrodes. Then it is possible to govern the Fermi level in the film with a bias U 1 D U 2 as in Fig.…”

Section: Basic Features Of Nanostructured Electrochemical Devicesmentioning

confidence: 99%

Physical electrochemistry of nanostructured devices

Bisquert

2008

Phys. Chem. Chem. Phys.

236

267

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“…[23][24][25][26][27][28][29] The ex situ methods have typically used either a conventional four-probe approach or the more refined van der Pauw method, 30 applied to electrochemically polymerized films that must be removed from the conductive substrate before measurements can be made. In situ methods are more attractive because they avoid contamination and mechanical damage due to handling and allow correlation of the conductivity with other properties such as doping level (SOC) and OCV.…”

Section: In Situ Conductivity Of P3bt Filmsmentioning

confidence: 99%

Characterization of an electroactive polymer for overcharge protection in secondary lithium batteries

Chen

Thomas‐Alyea

Newman

et al. 2005

Electrochimica Acta

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The optical, electronic, and electrochemical properties of thin films of the electroactive polymer, poly(3-butylthiophene) (P3BT), were studied in a lithium hexafluorophosphate electrolyte. Upon extraction of n electrons per polymer formula unit, anions are taken up to balance the charge, forming a polymer cation salt, (P3BT) mn+ (PF 6 -) mn (m is the number of formula units in the polymer chain), whose state of charge (SOC) varies with n. An in situ AC impedance method was developed to determine the electronic conductivity of the polymer at different states of charge. On oxidation of the insulating neutral P3BT polymer, the conductivity increased by eight orders of magnitude. The electrochemical potential, electronic conductivity, and optical spectrum at each state of charge were correlated, producing a color index of these primary characteristics. This allowed determination of the potential and state of charge as a function of location in transparent polymer films during propagation of an oxidation front across the film and during passage of steady-state currents through the polymer film.

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“…This has led to many research efforts for applications of PANI in various fields such as actuators [4,5], fuel cells [6], supercapacitors [7,8], biosensors [9,10], electrocatalysis [11], and photovoltaic devices [12]. PANI has been used as transducer material for sensors as its electrical property strongly depends on the electrochemical potential and its rapid equilibrium with protons in the medium [13][14][15]. Along with change in conductance, there are volume changes in CPs on changing their electrochemical state.…”

Section: Introductionmentioning

confidence: 99%