Publications and Research
Document Type
Poster
Publication Date
12-4-2025
Abstract
Hybrid nanostructures that combine zero-dimensional (0D) quantum dots (QDs) with two-dimensional (2D) transition-metal dichalcogenides (TMDs) are promising building blocks for next-generation optoelectronic devices, such as highly sensitive photodetectors, light-emitting diodes, and tunable light sources. These hybrid systems take advantage of the strong, size-dependent emission of colloidal QDs and the high carrier mobility and tunable band structure of 2D materials. In this research, we investigate hybrid structures composed of colloidal CdSe/ZnS, CuInS/ZnS, and PbS QDs integrated with indium selenide (InSe), a TMD known for its exceptional electron mobility and robust photoluminescence in few-layer form. The goal is to understand how interfacial interactions such as Förster resonance energy transfer (FRET) and charge transfer affect photoluminescence intensity, spectral shape, and exciton dynamics. To establish a foundation for this work, we exfoliated InSe flakes and collected photoluminescence spectra from reference QD films under controlled excitation conditions. These results provide essential baselines for analyzing QD–InSe coupling and support the development and further research of energy-efficient hybrid materials for advanced optoelectronic applications.
Comments
This poster, second place winner for group projects, was presented at the 43rd Semi-Annual Dr. Janet Liou-Mark Honors & Undergraduate Research Poster Presentation, Dec. 4, 2025. Mentor: Prof. Vitaliy Dorogan (Physics).