Dry-Deposited Transparent Carbon Nanotube Film as Front Electrode in Colloidal Quantum Dot Solar Cells
| Autor: | Malin B. Johansson, Kerttu Aitola, Erik M. J. Johansson, Carl Hägglund, Antti Kaskela, Xiaoliang Zhang, Kári Sveinbjörnsson, Esko I. Kauppinen |
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| Rok vydání: | 2016 |
| Předmět: |
Solar cells
Materials science Optical Phenomena General Chemical Engineering ta221 Carbon nanotubes Nanotechnology 02 engineering and technology Carbon nanotube Quantum dot solar cell 010402 general chemistry 01 natural sciences Polymer solar cell law.invention Electric Power Supplies law Quantum Dots Solar Energy Environmental Chemistry General Materials Science Colloids Plasmonic solar cell Coloring Agents Electrodes ta218 Carbon nanotubes in photovoltaics ta114 Colloidal quantum dots Nanotubes Carbon Photovoltaic system Tin Compounds Optical loss Hybrid solar cell 021001 nanoscience & nanotechnology 0104 chemical sciences General Energy Quantum dot 0210 nano-technology |
| Zdroj: | ChemSusChem. 10:434-441 |
| ISSN: | 1864-5631 |
| DOI: | 10.1002/cssc.201601254 |
| Popis: | Single-walled carbon nanotubes (SWCNTs) show great potential as an alternative material for front electrodes in photovoltaic applications, especially for flexible devices. In this work, a press-transferred transparent SWCNT film was utilized as front electrode for colloidal quantum dot solar cells (CQDSCs). The solar cells were fabricated on both glass and flexible substrates, and maximum power conversion efficiencies of 5.5 and 5.6 %, respectively, were achieved, which corresponds to 90 and 92 % of an indium-doped tin oxide (ITO)-based device (6.1 %). The SWCNTs are therefore a very good alternative to the ITO-based electrodes especially for flexible solar cells. The optical electric field distribution and optical losses within the devices were simulated theoretically and the results agree with the experimental results. With the optical simulations that were performed it may also be possible to enhance the photovoltaic performance of SWCNT-based solar cells even further by optimizing the device configuration or by using additional optical active layers, thus reducing light reflection of the device and increasing light absorption in the quantum dot layer. |
| Databáze: | OpenAIRE |
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