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Antimonene-based flexible photodetector
- Source :
- Nanoscale Horizons. 5:124-130
- Publication Year :
- 2020
- Publisher :
- Royal Society of Chemistry (RSC), 2020.
-
Abstract
- Antimonene is an emerging semiconducting two-dimensional (2D) material with various attractive properties, but its applications in optoelectronics have rarely been explored. Herein, we report a highly efficient preparation of few-layered antimonene by a polymer ionic liquid (PIL) assisted liquid-phase exfoliation method, which gives above 20% yield of micrometer sized nanosheets. Stability studies suggested that the presence of water in the solvent significantly accelerated the decomposition of the produced antimonene, while the antimonene dispersed in dry DMF exhibited a very high stability under ambient conditions. For the first time, flexible photodetectors based on a hybrid structure of few layer antimonene nanosheets modified by PIL and CdS quantum dots (QDs) were fabricated, which showed a good responsivity of 10 μA W−1 and on/off ratio of 26.8 under the bias of 1 V. This work demonstrates that PIL assisted liquid-phase exfoliation is a very promising method to achieve highly efficient preparation, preservation, and surface modification of few-layer antimonene, and hence enable the application of antimonene-based 2D materials in optoelectronics.
- Subjects :
- chemistry.chemical_classification
Materials science
Photodetector
Nanotechnology
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Exfoliation joint
0104 chemical sciences
Micrometre
Responsivity
chemistry
Quantum dot
Surface modification
General Materials Science
0210 nano-technology
Layer (electronics)
Subjects
Details
- ISSN :
- 20556764 and 20556756
- Volume :
- 5
- Database :
- OpenAIRE
- Journal :
- Nanoscale Horizons
- Accession number :
- edsair.doi...........f7bfb944ed69d556c80cc2498c65cc1d