Ambient Protection of Few-Layer Black Phosphorus via Sequestration of Reactive Oxygen Species
| Autor: | Christopher Elbadawi, Md. Nurul Karim, Andrea Rassell, Charlene J. Lobo, Gavin E. Collis, Milos Toth, Taimur Ahmed, Sivacarendran Balendhran, Rajesh Ramanathan, Igor Aharonovich, Sumeet Walia, Jimmy C. Kotsakidis, Michael S. Fuhrer, Mandeep Singh, Pabudi Weerathunge, Madhu Bhaskaran, Jonathan Duckworth, Sharath Sriram, Mathew D. Brennan, Michelle J. S. Spencer, Fahmida Rahman, Vipul Bansal, Bent Weber, José M. Domínguez-Vera |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Reactive oxygen species Mechanical Engineering Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Black phosphorus 0104 chemical sciences chemistry 13. Climate action Mechanics of Materials Degradation (geology) General Materials Science Nanoscience & Nanotechnology 0210 nano-technology Layer (electronics) |
| Zdroj: | Advanced materials (Deerfield Beach, Fla.). 29(27) |
| ISSN: | 1521-4095 |
| Popis: | © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Few-layer black phosphorous (BP) has emerged as a promising candidate for next-generation nanophotonic and nanoelectronic devices. However, rapid ambient degradation of mechanically exfoliated BP poses challenges in its practical deployment in scalable devices. To date, the strategies employed to protect BP have relied upon preventing its exposure to atmospheric conditions. Here, an approach that allows this sensitive material to remain stable without requiring its isolation from the ambient environment is reported. The method draws inspiration from the unique ability of biological systems to avoid photo-oxidative damage caused by reactive oxygen species. Since BP undergoes similar photo-oxidative degradation, imidazolium-based ionic liquids are employed as quenchers of these damaging species on the BP surface. This chemical sequestration strategy allows BP to remain stable for over 13 weeks, while retaining its key electronic characteristics. This study opens opportunities to practically implement BP and other environmentally sensitive 2D materials for electronic applications. |
| Databáze: | OpenAIRE |
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