Composition uniformity of site-controlle
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G. Biasiol; V. Baranwal; S. Heun; M. Prasciolu; M. Tormen; A. Locatelli; T.O. Me
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Article
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2011
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Elsevier Science
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English
β 462 KB
We have studied the composition profiles of Stranski-Krastanov InAs/GaAs quantum dots grown on patterned nanohole arrays. Two dimensional surface chemical maps obtained by X-ray photoemission electron microscopy reveal a non-uniform composition profile similar to that of standard dots grown on plana