Electrochemically induced charge injection in disordered organic conductive polymers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F18%3A63520882" target="_blank" >RIV/70883521:28140/18:63520882 - isvavai.cz</a>

Result on the web

<a href="https://aip.scitation.org/doi/pdf/10.1063/1.5049133?class=pdf" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/1.5049133?class=pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5049133" target="_blank" >10.1063/1.5049133</a>

Result language

angličtina

Original language name

Electrochemically induced charge injection in disordered organic conductive polymers

Original language description

This paper deals with the electrochemically induced charge injection in the conductive polymer (CP), exemplified by well examined archetypal CP—poly(3-hexylthiophene-2,5-diyl). The polar solvent of acetonitrile with salt tetrabutylammonium hexafluorophosphate was used to transport electrons in the electrolyte. The decisive mechanism is the recombination current at the electrolyte/CP interface taking place at the Fermi energy of CP, whose energy position is determined by the externally applied voltage. The corresponding mechanism of the charge carrier transport in the polymer bulk is the space-charge limited current (SCLC) by holes or electrons (or more precisely positive and negative polarons) at the respective transport paths of HOMO and LUMO bands. The charge transport mechanisms and the occupation statistics are the basis of the energy-resolved electrochemical impedance spectroscopy for the mapping of the density of electronic states of conductive organic semiconductors [F. Schauer, V. Nádaždy, and K. Gmucová, J. Appl. Phys. 123, 161590 (2018)]. From the application point of view, the major message of the paper is that it is possible to pass high current densities of the order of 0.1 A cm−2 via electrochemical systems with the CP, induced by means of doping processes of both CP surface and its bulk, leading to the charge injection and SCLC in CP.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

1089-7550

Volume of the periodical

124

Issue of the periodical within the volume

16

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

"165702-1"-"165702-9"

UT code for WoS article

000448975000074

EID of the result in the Scopus database

2-s2.0-85055436520