CZTS x Se1-x nanocrystals: Composition dependent method of preparation, morphological characterization and cyclic...

Area of Science:

• Materials Science
• Nanotechnology
• Inorganic Chemistry

Background:

• Copper zinc tin sulpho-selenide (CZTSSe) is a promising material for photovoltaic applications.
• Understanding the synthesis and characterization of CZTSSe nanocrystals is crucial for optimizing their performance.
• Previous research has explored CZTSSe, but detailed data on synthesis and characterization is often dispersed.

Purpose of the Study:

• To present detailed synthesis procedures for copper zinc tin sulpho-selenide (CZTSSe) alloy nanocrystals.
• To provide comprehensive material characterization data for CZTSSe nanocrystals.
• To correlate synthesis methods with material properties for future research and development.

Main Methods:

• Synthesis of CZTSSe alloy nanocrystals.
• Fourier Transform Infrared (FTIR) spectroscopy for surface analysis.
• Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM), and Atomic Force Microscopy (AFM) for morphology.
• Energy Dispersive X-ray Analysis (EDAX) for elemental composition.
• Cyclic Voltammetry (CV) for electrochemical properties.

Main Results:

• Successful synthesis of CZTSSe alloy nanocrystals.
• FTIR data confirmed the adsorption of oleylamine on the nanocrystals.
• Morphological details were elucidated by TEM, FESEM, and AFM.
• EDAX elemental mapping verified the composition of the nanocrystals.
• Data on optical and electrochemical properties (band gaps, band edges) as a function of composition were compiled.

Conclusions:

• The presented data provides a valuable resource for researchers working with CZTSSe nanocrystals.
• The characterization data supports the understanding of CZTSSe material properties and their dependence on composition.
• This work facilitates further development of CZTSSe-based devices, particularly in solar energy conversion.