Organic Photovoltaic Cells Based on ZnO Thin Film Electrodes
| Autor: | Stefan Antohe, Corneliu Ghica, Lucian Ion, Leona C. Nistor, G. Epurescu, Maria Dinescu |
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| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Organic electronics Materials science business.industry Photovoltaic system Biomedical Engineering Bioengineering General Chemistry Polymer Condensed Matter Physics Pulsed laser deposition chemistry Electrode Optoelectronics General Materials Science Quantum efficiency Thin film business Absorption (electromagnetic radiation) |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 10:1322-1326 |
| ISSN: | 1533-4880 |
| Popis: | Due to its wide band-gap (ca. 3.4 eV), ZnO is a possible candidate material to be used as transparent electrode for a new class of photovoltaic (PV) cells. Also, an increased interest for the photovoltaic properties of several organic monomers and polymers (merocyanines, phthalocyanines and porphyrins) was noticed, because of their high optical absorption in the visible region of the spectrum allowing them to be used as potential inexpensive materials for solar cells. Preparation and properties of CuPc (copper phthalocyanine) based photovoltaic cells using ZnO thin films as transparent conductor electrodes are presented in this paper. ZnO layers are grown by pulsed laser deposition, while the organic layers are obtained by thermal evaporation. Structural characterization is performed by electron microscopy. Optical and transport properties of the mutilayered structures are obtained by electrical and spectro-photometric measurements. The influence of the ZnO-polymer interface on the external quantum efficiency (EQE) of the photovoltaic cell is clearly evidenced by our measurements. |
| Databáze: | OpenAIRE |
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