NRE Lab at National University of Tainan (NUTN) since 2016 focused on developing nanomaterials with heterostructures and investigating their optoelectronic properties. Our recent research interests include the innovation of the advanced semiconductor nanoheterostructures for the applications in renewable energy and novel lighting technologies.
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Designing the Semiconductor nanoheterostructures
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Semiconductors are the kay materials in the photoelectric applications, including photovoltaic, photocatalysis or photosensor. Our aim in the recent research is designing the semiconductor nanoheterostructures to achieve the various physical processes of the charge carriers at the interface for the efficiency improvement in photoelectric conversions. The decoration of metal, carbon or semiconductor materials on semiconductors results in the different energy band structures and the unique charge carrier behaviors at the interface. Depending on the different applications, we manufacture the desire semiconductor compositions and deeply understand the insights of their physical chemistry properties to achieve the excellent performance in the utilizations.
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Charge carrier dynamics of semiconductor nanoheterostructures
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Ultrafast laser spectroscopy is a powerful technique to investigate the exciton dynamics in the designed nanoheterostructures. The exciton dynamics provides us the important insights to understand the physical processes of charge carriers in the nanoheterostructures or at the interface. The strong correlation between charge carrier dynamics and efficiency of photoelectric conversions provide us a great benefit to design the desired semiconductor nanoheterostructures.
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Recent investigations:
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1. Low-band gap Metal Oxides for photoelectrochemical (PEC) hydrogen generation.
2. ​Visible driven photocatalyst : Perovskite / carbon nanoheterostructures for CO2 reduction.
3.Charge carrier dynamics and application of the InP based quantum dots (QDs).
