Electric-field-induced metastable state of electrical conductivity in polyaniline nanoparticles polymerized in nanopores of a MIL-101 dielectric matrix. / Romanenko, A. I.; Dybtsev, D. N.; Fedin, V. P. et al.
In: JETP Letters, Vol. 101, No. 1, 01.01.2015, p. 57-60.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Electric-field-induced metastable state of electrical conductivity in polyaniline nanoparticles polymerized in nanopores of a MIL-101 dielectric matrix
AU - Romanenko, A. I.
AU - Dybtsev, D. N.
AU - Fedin, V. P.
AU - Aliev, S. B.
AU - Limaev, K. M.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Conducting polyaniline PANI has been obtained inside dielectric nanoporous coordination polymer MIL-101. The application of an electric field transforms both bulk PANI and nanocomposite PANI@MIL to a metastable high-conductive state. After a decrease in the applied electric field, PANI and PANI@MIL relax toward a state low-conductive stable by the law ln[σ(t)/σ(τ)] = −(t/τ)n, which is typical of disordered systems with the characteristic time τ of about six hours for PANI and with three times larger time for composite PANI@MIL. The temperature dependences of the electrical conductivity σ(T) of the samples in both high- and low-ohmic states are described by the fluctuation-induced conductivity model. Significant changes in relaxation processes and in the parameters of the fluctuation-induced tunneling conduction in nanocomposite PANI@MIL are due to a decrease in the sizes of polyaniline particles in the MIL-101 matrix to nanometers.
AB - Conducting polyaniline PANI has been obtained inside dielectric nanoporous coordination polymer MIL-101. The application of an electric field transforms both bulk PANI and nanocomposite PANI@MIL to a metastable high-conductive state. After a decrease in the applied electric field, PANI and PANI@MIL relax toward a state low-conductive stable by the law ln[σ(t)/σ(τ)] = −(t/τ)n, which is typical of disordered systems with the characteristic time τ of about six hours for PANI and with three times larger time for composite PANI@MIL. The temperature dependences of the electrical conductivity σ(T) of the samples in both high- and low-ohmic states are described by the fluctuation-induced conductivity model. Significant changes in relaxation processes and in the parameters of the fluctuation-induced tunneling conduction in nanocomposite PANI@MIL are due to a decrease in the sizes of polyaniline particles in the MIL-101 matrix to nanometers.
UR - http://www.scopus.com/inward/record.url?scp=84938087075&partnerID=8YFLogxK
U2 - 10.1134/S0021364015010129
DO - 10.1134/S0021364015010129
M3 - Article
AN - SCOPUS:84938087075
VL - 101
SP - 57
EP - 60
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 1
ER -
ID: 25418322