Optical properties and growth mechanism of multiple type-II ZnTe ÕZnSe quantum dots grown by migration-enhanced epitaxy
نویسندگان
چکیده
Y. Gong,1 W. MacDonald,2 G. F. Neumark,1 M. C. Tamargo,3 and Igor L. Kuskovsky2 1Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA 2Department of Physics, Queens College of CUNY, Flushing, New York 11367, USA 3Department of Chemistry, City College of CUNY, New York, New York 10036, USA Received 10 August 2007; revised manuscript received 21 January 2008; published 9 April 2008
منابع مشابه
Photoluminescence and magneto-optical properties of multilayered type-II ZnTe/ZnSe quantum dots
Multilayered Zn–Se–Te structures grown by migration enhanced epitaxy are studied by temperatureand excitation-dependent photoluminescence (PL) as well as magneto-PL. The PL consists of two bands: a blue band, overlaid with band edge sharp lines, dominant at low temperatures and high excitation, and a green band, which appears at elevated temperature and low excitation. Upon varying excitation i...
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