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Air stable black phosphorous in polyaniline-based nanocomposite
Jéssica E S Fonsaca1, Sergio H Domingues2, Elisa S Orth1
1Department of Chemistry, Federal University of Paraná (UFPR), CP 19032, CEP 81531-980, Curitiba, PR, Brazil.
Scientific Reports
|September 2, 2017
Summary
We developed a stable black phosphorus (BP) thin film by coating it with polyaniline (PANI). This PANI coating protects BP from degradation for 60 days, overcoming a major hurdle for its technological applications.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Black phosphorus (BP) exhibits promising electronic and optical properties but suffers from rapid degradation in ambient conditions.
- This instability has significantly limited its practical applications in various technologies.
Purpose of the Study:
- To develop a method for enhancing the stability of black phosphorus thin films.
- To create a protective nanocomposite using polyaniline (PANI) to prevent BP deterioration.
Main Methods:
- A liquid/liquid interfacial method was used to synthesize a freestanding thin film.
- The film consists of black phosphorus flakes coated with polyaniline.
- Characterization techniques were employed to analyze the composite structure and stability.
Main Results:
- The polyaniline-coated black phosphorus (BP/PANI) nanocomposite demonstrated remarkable ambient stability, lasting up to 60 days.
- Uncoated black phosphorus degraded within 3 days under identical conditions.
- Characterization confirmed efficient coverage of BP flakes by PANI, indicating favorable interfacial interactions.
Conclusions:
- The developed BP/PANI nanocomposite offers a viable solution to the degradation challenge of black phosphorus.
- This breakthrough enables the use of black phosphorus thin films in diverse technological applications.
- The synergistic properties of BP and PANI can be leveraged for advanced material functionalities.
