Annealing-free solution-processed tungsten oxide for inverted organic solar cells
| Autor: | Dimitris Tsikritzis, George Skoulatakis, Guillaume Wantz, Frederic Guillain, Laurence Vignau, Stella Kennou |
|---|---|
| Přispěvatelé: | Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Department of Chemical Engineering, University of Patras [Greece] |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Organic solar cell Renewable Energy Sustainability and the Environment Annealing (metallurgy) [SPI.NRJ]Engineering Sciences [physics]/Electric power Inorganic chemistry Energy conversion efficiency Oxide Surfaces Coatings and Films Electronic Optical and Magnetic Materials Active layer chemistry.chemical_compound Chemical engineering X-ray photoelectron spectroscopy chemistry Transition metal ComputingMilieux_MISCELLANEOUS Sol-gel |
| Zdroj: | Solar Energy Materials and Solar Cells Solar Energy Materials and Solar Cells, Elsevier, 2014, 122, pp.251-256 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2013.12.011 |
| Popis: | Solution processing is mandatory to continue the development of large scale and low cost organic solar cells. Tungsten oxide (WO3) has shown good performance when used as a hole transporting layer in organic solar cells. Here this oxide has been deposited by a sol–gel technique on top of the active layer in an inverted structure device. This layer has been characterised by XPS and UPS to understand the effect of the stoichiometry and of the energy levels on the device performance. In the optimised structure, an average power conversion efficiency (PCE) of 3.5% has been achieved, which is comparable to devices with vacuum deposited transition metal oxide using poly(3-hexylthiophene):[6,6]-phenyl-C61 butyric acid methyl ester (P3HT:PCBM) as an active layer. Moreover in our study no annealing is needed after the deposition of the sol–gel processed oxide, which is really promising for the development of industrial roll-to-roll production on flexible substrates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect