Investigation of the internal heterostructure of highly luminescent quantum dot-quantum well nanocrystals.

Journal article

In this paper, we report on the growth and characterization of quantum dot-quantum well nanostructures with photoluminescence (PL) that is tunable over the visible range. The material exhibits a PL efficiency as high as approximately 60% and is prepared by reacting ZnS nanocrystals in turn with precursors for CdSe and ZnS in an attempt to form a simple "ZnS/CdSe/ZnS quantum-well structure". Through the use of synchrotron radiation-based photoelectron spectroscopy in conjunction with detailed ...

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Authors: Santra, P; Viswanatha, R; Daniels, S; Pickett, N; Smith, J

• Publication status: Published
• Journal: Journal of the American Chemical Society
• Volume: 131
• Issue: 2
• Pages: 470-477
• Publication date: 2009-01-01
• DOI: 10.1021/ja8033075
• EISSN: 1520-5126
• ISSN: 0002-7863
• Language: English
• Keywords: Quantum Dots; Sulfides; Spectrophotometry, Ultraviolet; Cadmium Compounds; Nanoparticles; Luminescent Measurements; Selenium Compounds; X-Ray Diffraction; Microscopy, Electron, Transmission; Zinc Compounds