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Light Emitting Diodes Formed Using Mist Deposition of Colloidal Solution of CdSe Nanocrystalline Quantum Dots
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2011
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Materials ScienceChemical EngineeringPhotoluminescenceEngineeringNanomaterialsNanotechnologyApplied PhysicsQuantum DotsColloidal NanocrystalsDrop SizeLight-emitting DiodesPlasmon-enhanced PhotovoltaicsColloidal SolutionQuantum Dot LedsMist DepositionNanocrystalline MaterialOptoelectronicsCompound Semiconductor
This study is concerned with the fabrication of multi-color Light-Emitting Diodes (LEDs) using colloidal solutions of CdSe Nanocrystalline Quantum Dots (NQDs) by the process of mist deposition. CdSe/ZnS core/shell NQDs with red (620 nm), yellow (587 nm) and green (558nm) emissions were deposited to form a patterned tri-color array of quantum dot LEDs. Results obtained from simulation studies show the correlation between the drop size of mist deposition process and the thickness of the resulting NQD films as well as extent of area coverage with mist deposited quantum dots.