Photogeneration and photovoltaic effect in poly(N-vinylcarbazole): TiO2 bulk-heterojunction elaborated by hydrolysis–condensation reactions of TiO2 precursors
| Autor: | Vincent Barlier, Joel Davenas, Andrzej Rybak, Véronique Bounor-Legaré, Agnieszka Slazak, Jaroslaw Jung, Gisèle Boiteux |
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| Přispěvatelé: | Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Polymères et des Biomatériaux (IMP-LMPB), Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut de Chimie du CNRS (INC), Łódź University of Technology |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology Photovoltaic effect 010402 general chemistry 01 natural sciences 7. Clean energy Polymer solar cell chemistry.chemical_compound PEDOT:PSS Materials Chemistry Organic chemistry Thin film Titanium isopropoxide Carbazole Mechanical Engineering Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Titanium oxide [CHIM.POLY]Chemical Sciences/Polymers chemistry Chemical engineering Mechanics of Materials 0210 nano-technology Titanium |
| Zdroj: | Synthetic Metals Synthetic Metals, Elsevier, 2009, 159 (5-6), pp.508-512 |
| ISSN: | 0379-6779 |
| Popis: | TiO 2 :poly(N-vinylcarbazole) (PVK) bulk-heterojunctions (BHJ) have been elaborated from a blend of a TiO 2 precursor with the polymer in solution. The TiO 2 precursor is hydrolyzed with the surrounding air humidity in thin film. Titanium isopropoxide [Ti( i OPr) 4 ] and Tetrakis (9H-carbazole-9-yl-ethyl-oxy) titanium [Ti(OeCarb) 4 ] were used as TiO 2 precursor. Photogeneration quantum yield in BHJ of TiO 2 :PVK were determined by the surface potential decay (SPD) technique. Photovoltaic effect was studied in ITO/PEDOT:PSS/TiO 2 :PVK/Al structures. It was found that the photovoltaic performance is strongly dependent on the homogeneity of the blends. The improved dispersion of the TiO 2 phase obtained with the precursor bearing a carbazole group allows efficient electron transport and fill factor enhancement of the photovoltaic devices. |
| Databáze: | OpenAIRE |
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