Nguyen, Nang Dinh and Lam, Minh Long (2017) Optical and NH3 Gas Sensing Properties of Hole-Transport Layers Based on PEDOT: PSS Incorporated with Nano-TiO2. MSA . pp. 663-672. ISSN 2153-1188
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Abstract
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) incorporated with nanocrystalline TiO2 powder (PEDOT:PSS+nc-TiO2) films were prepared by spin-coating technique. SEM surface morphology, UV-Vis spectra and NH3 gas sensing of were studied. Results showed that the PEDOT:PSS+nc-TiO2 film with a content of 9.0 wt% of TiO2 is most suitable for both the hole transport layer and the NH3 sensing. The responding time of the sensor made from this composite film reached a value as fast as 20 s. The rapid responsiveness to NH3 gas was attributed to the efficient movement of holes as the major charge carriers in PEDOT:PSS+nc-TiO2 composite films. Useful applications in organic electronic devices like light emitting diodes and gas thin film sensors can be envisaged.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering Physics |
| Divisions: | Faculty of Engineering Physics and Nanotechnology (FEPN) |
| Depositing User: | Dinh Tu Bui |
| Date Deposited: | 27 Dec 2017 01:22 |
| Last Modified: | 27 Dec 2017 01:22 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/2857 |
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