Efficient fully blade-coated perovskite solar cells in air with nanometer-thick bathocuproine buffer layer
| Autor: | Thomas M. Brown, Bas de Jong, Lucio Cinà, Diego Bagnis, Luiza de Queiroz Correa, Izabela Silva Bicalho, Sergio Castro-Hermosa, Luana Wouk |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Settore ING-INF/01 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences 7. Clean energy Polystyrene sulfonate chemistry.chemical_compound PEDOT:PSS Coating General Materials Science Electrical and Electronic Engineering Perovskite (structure) Energy conversion efficiency 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics 0104 chemical sciences Indium tin oxide chemistry Chemical engineering Electrode engineering 0210 nano-technology Layer (electronics) |
| Zdroj: | Nano Research |
| ISSN: | 1998-0000 1998-0124 |
| Popis: | Fully printed perovskite solar cells (PSCs) were fabricated in air with all constituent layers, except for electrodes, deposited by the blade coating technique. The PSCs incorporated, for the first time, a nanometer-thick printed Bathocuproine (BCP) hole blocking buffer using blade coating technique and deposited at relative humidity up to 50%. The PSCs with a p-i-n architecture (Glass/Indium tin oxide(ITO)/poly(3,4- ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/CH3NH3PbI3 /[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/BCP/Ag) delivered a maximum power conversion efficiency (PCE) of 14.9% on an active area of 0.5 cm2 when measured under standard test conditions (STC). The PSCs with a blade coated BCP delivered performance of 10% and 63% higher (in relative terms) than those incorporating a spin coated BCP or without any BCP film, respectively. The atomic force microscopies (AFM) showed that blade coated films were more homogeneous and acted also as a surface planarizer leading to a reduction of roughness which improved BCP/Ag interface reducing charge recombination. The demonstration of 15% efficient devices with all constituent layers, including nanometer-thick BCP (~10 nm), deposited by blade coating in air, demonstrates a route for industrialization of this technology. |
| Databáze: | OpenAIRE |
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