Photoluminescence Spectroscopy of BiI3, a 2D Material for Photovoltaic Applications
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open in viewerMany two-dimensional (2D) semiconductors show promise for photovoltaic applications due to their desirable bandgap and predicted long carrier lifetimes. One 2D solar energy material candidate is BiI3. A time-resolved photoluminescence system, using time-correlated single photon counting (TCSPS), was established and used in conjunction with an existing spectrally-resolved photoluminescence spectroscopy apparatus for characterization of BiI3. A main peak was found at 1.82 eV and a wider peak at 1.67eV with carrier lifetimes of ~270 ps at the main peak. The optical properties of BiI3 were found to be uniform across the crystal surface. Future work will correlate these results with time-resolved terahertz spectroscopy in order to get a complete picture of photoexcited carrier dynamics.
- This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
- Creator
- Publisher
- Identifier
- E-project-042419-092820
- Advisor
- Year
- 2019
- Date created
- 2019-04-24
- Resource type
- Major
- Rights statement
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Buzzell_Mendizabal_MQP_final.pdf | Público | Descargar |
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