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- Lee, Zonghoon
- Atomic-Scale Electron Microscopy Lab.
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Quantum-dot light-emitting diodes utilizing CdSe/ZnS nanocrystals embedded in TiO(2) thin film
- Author(s)
- Kang, Seung-Hee, Kumar, Ch. Kiran, Lee, Zonghoon, Kim, Kyung-Hyun, Huh, Chul, Kim, Eui-Tae
- Issued Date
- 2008-11
- Citation
- APPLIED PHYSICS LETTERS, v.93, no.19, pp.1 - 3
- Abstract
- Quantum-dot (QD) light-emitting diodes (LEDs) are demonstrated on Si wafers by embedding core-shell CdSe/ZnS nanocrystals in TiO(2) thin films via plasma-enhanced metallorganic chemical vapor deposition. The n-TiO(2)/QDs/p-Si LED devices show typical p-n diode current-voltage and efficient electroluminescence characteristics, which are critically affected by the removal of QD surface ligands. The TiO(2)/QDs/Si system we presented can offer promising Si-based optoelectronic and electronic device applications utilizing numerous nanocrystals synthesized by colloidal solution chemistry.
- Publisher
- AMER INST PHYSICS
- ISSN
- 0003-6951
- Keyword (Author)
- cadmium compounds, electroluminescent devices, elemental semiconductors, II-VI semiconductors, light emitting diodes, MOCVD, nanostructured materials, plasma CVD, p-n junctions, quantum well devices, semiconductor materials, semiconductor quantum dots, semiconductor thin films, silicon, titanium compounds, wide band gap semiconductors, zinc compounds
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