کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5446067 1511133 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interface Strain Effects on ZnSe/ (CdSe) based Type I and ZnSe/CdS Type II Core/Shell Quantum Dots
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Interface Strain Effects on ZnSe/ (CdSe) based Type I and ZnSe/CdS Type II Core/Shell Quantum Dots
چکیده انگلیسی
We present a comparative experimental and theoretical study on the determination of capped core diameter in ZnSe/ZnS, CdSe/Cd(Zn)S type-I and ZnSe/CdS type-II core/shell nanocrystals. The lattice mismatch strain at the interface between core and shell semiconductors is calculated from continuum elastic theory and applied in effective mass approximation to determine the corresponding capped core diameter. Calculated results are compared with bare cores (CdSe and ZnSe) diameter obtaind from the transmission electron microscopy images. It is shown that the core is squeezed in ZnSe/ZnS and CdSe/Cd(Zn)S after compressive strained shell and stretched in ZnSe/CdS after tensile strained shell deposition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 102, December 2016, Pages 152-163
نویسندگان
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