A5041570024- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced Semiconductor Detectors and Materials
- Perovskite Materials and Applications
- Semiconductor Quantum Structures and Devices
- Nanocluster Synthesis and Applications
The University of Texas at Dallas
2023-2024
Many optoelectronic processes in colloidal semiconductor nanocrystals (NCs) suffer an efficiency decline under high-intensity excitation. This issue is caused by Auger recombination of multiple excitons, which converts the NC energy into excess heat, reducing and life span NC-based devices, including photodetectors, X-ray scintillators, lasers, high-brightness light-emitting diodes (LEDs). Recently, quantum shells (QSs) have emerged as a promising geometry for suppression decay; however,...
Compared to zero-dimensional (0D) semiconductor quantum dots, 2D nanoplatelets (NPLs) offer a spectrally narrow luminescence and superior absorption coefficients, which makes this geometry an attractive candidate for optoelectronic applications. However, optical devices based on NPLs still suffer from nonradiative Auger decay of multiple excitons (MX), limits the efficiency processes, including MX luminescence, electroluminescence, gain. Here, we demonstrate that recombination is strongly...
Quantum information processing demands efficient quantum light sources (QLS) capable of producing high-fidelity single photons or entangled photon pairs. Single epitaxial dots (QDs) have long been proven to be deterministic photons; however, their production via molecular-beam epitaxy presents scalability challenges. Conversely, colloidal semiconductor QDs offer scalable solution and tunable photoluminescence, but suffer from broader linewidths unstable emissions. This leads spectrally...