Inkjet Printable ZnO/PEDOT:PSS Heterojunction for Thin Flexible Semi-Transparent Optoelectronic Sensors
| Autor: | Florian Jurin, Yipeng Zhang, Eleonora Frau, C.C. Buron, Claudine Filiatre, Silvia Schintke, Lydie Viau |
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| Přispěvatelé: | Haute Ecole Spécialisée de Suisse Occidentale (HES-SO), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
heterojunction Resistance II-VI semiconductor materials Nanoparticle 02 engineering and technology Substrate (electronics) 01 natural sciences Electrophoretic deposition PEDOT:PSS 0103 physical sciences Zinc oxide [CHIM]Chemical Sciences Films 010302 applied physics photosensor inkjet printing negative photoresponse Nanocomposite business.industry 021001 nanoscience & nanotechnology Indium tin oxide electrophoretic deposition Printed electronics Heterojunctions Optoelectronics Printing printed electronics 0210 nano-technology business Layer (electronics) |
| Zdroj: | 2020 22nd International Conference on Transparent Optical Networks (ICTON) 2020 22nd International Conference on Transparent Optical Networks (ICTON), Jul 2020, Bari, Italy. pp.1-4, ⟨10.1109/ICTON51198.2020.9203417⟩ ICTON |
| Popis: | International audience; Flexible sensors play an increasing role in printed electronics and are of interest for optoelectronic applications in flexible robotics and industrial automation. Thus, we have investigated the hybrid inorganic-organic junction between ZnO and PEDOT:PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate). A thin ITO (indium tin oxide) layer on PET (polyethylene terephthalate) foils was used as substrate electrode. ZnO was deposited from a nanoparticle (NP) suspension by electrophoretic deposition. For comparison, we have used three different methods for the deposition of PEDOT:PSS, namely (i) drop casting, (ii) dip-coating, (iii) inkjet printing. For the resulting ZnO-PEDOT:PSS junctions, current-voltage characteristics were recorded using miBot micromanipulators, and analysed applying adapted models of thermionic emission, according to Cheung and Cheung, as well as Norde. For dip-coated samples we obtained barrier heights of (0.78±0.01) eV and (0.73±0.02) eV, respectively, while inkjet printed and drop casted structures show smaller values (0.53 eV to 0.66 eV, respectively). Thus, dip-coating can be used for a rapid upper estimation of the ZnO-PEDOT:PSS barrier heights for developing inkjet printable optoelectronic sensors. When using low concentrated PEDOT:PSS suspensions, we observed negative photoresponse of the junction; this is consistent with the formation of a ZnO-NPs and PEDOT:PSS nanocomposite which we obtained on porous semi-transparent ZnO-NP films. |
| Databáze: | OpenAIRE |
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