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VOL. 1, ISSUE 2 (2025)
Advanced photonic materials for high-efficiency optoelectronic devices: A comprehensive analysis of quantum dot-enhanced light emission systems
Authors
Akwaeke Adebayo
Abstract
The development of
high-efficiency optoelectronic devices remains a critical challenge in modern
photonics, with applications spanning telecommunications, energy harvesting,
and display technologies. This study investigates the integration of colloidal
quantum dots (CQDs) with plasmonic nanostructures to enhance photoluminescence
quantum yield (PLQY) and carrier mobility in next-generation light-emitting
devices. Using a systematic experimental approach, we synthesized core-shell
CdSe/ZnS quantum dots with controlled size distributions (3.2–5.8 nm) and
integrated them with silver nanowire networks to create hybrid photonic
materials. The hybrid structures were characterized using transmission electron
microscopy (TEM), photoluminescence spectroscopy, and time-resolved
fluorescence measurements. Results demonstrated a 312% enhancement in PLQY
compared to pristine quantum dots, achieving a maximum quantum yield of 87.4 ±
2.3%. Carrier mobility increased from 1.2 × 10⁻³ cm²/V·s to 4.7 × 10⁻³ cm²/V·s
(p < 0.001), while device operational stability improved by 156% under
continuous operation. The plasmonic coupling mechanism was validated through
finite-difference time-domain (FDTD) simulations, revealing localized field
enhancement factors of 23–45× at resonant wavelengths. Temperature-dependent
measurements (77–350 K) indicated superior thermal stability with activation
energies of 184 ± 12 meV. These findings establish a robust framework for
designing high-performance photonic materials with potential applications in
solid-state lighting, photovoltaics, and quantum information processing. The
demonstrated enhancement mechanisms provide new pathways for overcoming
efficiency limitations in conventional optoelectronic systems.
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Pages:12-17
How to cite this article:
Akwaeke Adebayo "Advanced photonic materials for high-efficiency optoelectronic devices: A comprehensive analysis of quantum dot-enhanced light emission systems". World Journal of Advanced Science, Vol 1, Issue 2, 2025, Pages 12-17
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