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Self-assembled MoS2/rGO nanocomposites with tunable UV-IR absorption
Wei Wang1,2, Olesya O Kapitanova3, Pugazhendi Ilanchezhiyan2
1School of Mathematics & Physics, Hebei University of Engineering Handan 056038 China wangwei19872010@163.com.
RSC Advances
|May 11, 2022
Summary
Researchers synthesized molybdenum disulfide/reduced graphene oxide (MoS2/rGO) nanocomposites. These materials show tunable optical absorption across UV-IR wavelengths, making them promising for solar cells and photonics.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Reduced graphene oxide (rGO) is a key material in advanced electronics.
- Molybdenum disulfide (MoS2) offers unique electronic and optical properties.
- Nanocomposites combine properties of constituent materials for enhanced performance.
Purpose of the Study:
- To synthesize MoS2/rGO nanocomposites using a facile hydrothermal method.
- To investigate the effect of quantum confinement on optical absorption.
- To explore the potential of these nanocomposites for solar cell and photonics applications.
Main Methods:
- Ultrasonic pretreatment followed by single-stage hydrothermal and reduction process.
- Synthesis of self-assembled MoS2 layers within an rGO matrix.
- Characterization of structural properties and optical absorption spectra.
Main Results:
- Successfully synthesized MoS2/rGO layered nanocomposites.
- Achieved tunable optical absorption from 280 nm to 973 nm due to quantum confinement effects.
- Demonstrated wide UV-IR absorption range, beneficial for energy applications.
Conclusions:
- The MoS2/rGO nanocomposites exhibit tunable optical properties.
- These materials are suitable for developing highly efficient multiband solar cells.
- The synthesized nanocomposites hold promise for advanced photonics applications.
