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Strong dichroic emission in the pseudo one dimensional material ZrS3
Anupum Pant1, Engin Torun2, Bin Chen1
1School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, USA. Sefaattin.tongay@asu.edu.
Nanoscale
|October 8, 2016
Summary
Zirconium trisulphide (ZrS3) exhibits unique optical anisotropy due to its pseudo-1D chain structure. Angle-resolved photoluminescence spectroscopy reveals polarization-dependent light absorption, impacting optical technologies.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Zirconium trisulphide (ZrS3) belongs to the layered transition metal trichalcogenides (TMTCs).
- These materials exhibit pseudo one-dimensional (1D) characteristics due to chain-like structures within layers.
Purpose of the Study:
- To investigate the optical properties of few-layered ZrS3 using angle-resolved photoluminescence spectroscopy (ARPLS).
- To understand the influence of polarization on light absorption and emission in ZrS3.
Main Methods:
- Synthesis of few-layered ZrS3.
- Angle-resolved photoluminescence spectroscopy (ARPLS) to measure optical anisotropy.
- Polarization-dependent optical measurements.
Main Results:
- ZrS3 layers show significant optical anisotropy, with PL intensity varying strongly with light polarization.
- Efficient light absorption occurs when the electric field is polarized along the b-axis (chain direction).
- A unique linear dichroism response was observed, falling between 1D and 2D material limits due to inter-chain interactions.
Conclusions:
- This study demonstrates PL polarization anisotropy in 2D systems for the first time.
- The findings provide insights into how inter-chain interactions in pseudo-1D materials affect optical anisotropy.
- Results are relevant for developing advanced optical technologies utilizing polarized light.
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