On the Physical Properties PEDOT:PSS Thin Films
| Autor: | Anca Stanculescu, Marcela Socol, Romain Mallet, Mihaela Girtan |
|---|---|
| Přispěvatelé: | Laboratoire de Photonique d'Angers (LPHIA), Université d'Angers (UA), Service Commun d'Imageries et Analyses microscopiques |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Photoconductivity Relaxation (NMR) 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Hysteresis Chemical engineering PEDOT:PSS Mechanics of Materials Electrical resistivity and conductivity Seebeck coefficient Materials Chemistry [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] General Materials Science Thin film 0210 nano-technology ComputingMilieux_MISCELLANEOUS Perovskite (structure) |
| Zdroj: | Materials Today Communications Materials Today Communications, Elsevier, 2019, pp.100735. ⟨10.1016/j.mtcomm.2019.100735⟩ |
| ISSN: | 2352-4928 |
| Popis: | A complete characterization from optical, morphological, electrical, photo-electrical and thermo-electrical point of view was done for PEDOT:PSS thin films and DMSO and EG sensitized PEDOT:PSS films. The studies on the electrical conductivity and electrical photoconductivity allowed the calculation of different relaxation times. The relaxation time of the electrical conductivity is of order of femtosecond and is multiplied by a factor 10 when PEDOT: PSS thin films were deposited on surfaces sensitized with DMSO and EG. Besides, the photoconduction excitation and relaxation times are of order of seconds. An increase in the relaxation photoconduction time by 2 was observed for films deposited on surfaces sensitized with DMSO and by 1.2 for films deposited on surfaces sensitized with EG. The time response of electrical conductivity after exposure to light adds supplementary knowledge for the understanding of the inertial processes, or hysteresis behavior of organic or perovskite solar cells involving PEDOT:PSS films. The electrical conductivity increases with the temperature and the use of DMSO and EG as surfactants lead to higher values of electrical conductivity and Seebeck coefficient. A better stability of the electrical conductivity with the temperature increase, was noticed for films deposited on surfaces sensitized with DMSO. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect