Enhancement of double-layer capacitance behavior and its electrical conductivity in layered poly (3, 4-ethylenedioxythiophene)-based nanocomposites
| Title | Enhancement of double-layer capacitance behavior and its electrical conductivity in layered poly (3, 4-ethylenedioxythiophene)-based nanocomposites |
| Publication Type | Journal Article |
| Year of Publication | 2005 |
| Authors | A. Murugan, V, Viswanath, AK, Campet, G, Gopinath, CS, Vijayamohanan, K |
| Journal | Applied Physics Letters |
| Volume | 87 |
| Issue | 24 |
| Pagination | 243511 |
| Date Published | DEC |
| ISSN | 0003-6951 |
| Abstract | In this letter, we report on the enhanced double-layer capacitance of a layered poly (3, 4-ethylene dioxythiophene) PEDOT-MoO3 nanocomposite, which has been synthesized by a novel microwave irradiation method. The x-ray photoelectron spectroscopy analysis shows the changes in electron density and the shift in binding energy suggesting charge transfer from sulfur atoms upon PEDOT intercalation between MoO3 layers. The room-temperature conductivity for the PEDOT-MoO3 composite is found to be 1.82x10(-1) S cm(-1), which is four orders of magnitude higher than that of the pristine oxide (3.78x10(-5) S cm(-1)). The enhanced double-layer capacitance of the PEDOT-MoO3 nanocomposite (similar to 300 F g(-1)) compared to that (similar to 40 mF g(-1)) of pristine MoO3 is attributed to higher electronic conductivity, enhanced bidimensionality, and increase in surface area of the nanocomposite. |
| DOI | 10.1063/1.2140468 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.142 |