Synthesis, optical and morphological characterization of doped InP/ZnSe NCs

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Mushonga et al. - 2014 - Synthesis, optical and morphological characterization of doped InPZnSe NCs_compressed.pdf (274.94 KB)

Date

2013-07-22

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Physica B: Condensed Matter

Abstract

We report on the Ag-, Fe-, and Co-doping of InP/ZnSe QDs using the growth-doping method. Doping the InP/ZnSe NCs with Ag caused a red-shift in the emission spectra with increasing dopant levels while the PL intensity decreased. Fe-doping resulted in blue-shifted emission spectra. The cobalt-doping (Co-doping) had no effect on the emission peak position. Instead, it had a quenching effect on the PL intensities. The HRTEM images showed well-defined lattice fringes for the doped InP/ZnSe NCs while the XRD analyses showed that they retained their zinc blende structure even after doping.

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Keywords

Nanocrystals, Growth-doping, InP/ZnSe, Ag-dopant, Co-dopant, Fe-dopant

Citation

Mushonga, P., Ouma, I. L. A., Madiehe, A. M., Meyer, M., Dejene, F. B., & Onani, M. O. (2014). Synthesis, optical and morphological characterization of doped InP/ZnSe NCs. Physica B: Condensed Matter, 439, 189–192. https://doi.org/10.1016/j.physb.2013.12.009

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http://erepository.kibu.ac.ke/handle/123456789/11947

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