Photoluminescence properties of  Co and Ni co-doped CdS/ZnS core/shell nanoparticles

Nadeem Sabir; Wahid Qayyum; Syed Zajif Hussain; Irshad Hussain; Faheem Amin

doi:10.1117/12.2291454

23 February 2018 Photoluminescence properties of Co and Ni co-doped CdS/ZnS core/shell nanoparticles

Nadeem Sabir, Wahid Qayyum, Syed Zajif Hussain, Irshad Hussain, Faheem Amin

Proceedings Volume 10507, Colloidal Nanoparticles for Biomedical Applications XIII; 1050705 (2018) https://doi.org/10.1117/12.2291454
Event: SPIE BiOS, 2018, San Francisco, California, United States

Abstract

A two-step high temperature colloidal doping technique has been used to synthesis Co-Ni co-doped CdS/ZnS core/shell nanocrystals in organic phase. Co-Ni ions were incorporated into the CdS quantum dots core pursued by ZnS shell (six monolayers) which was developed on top of it. The co-doped nanocrystals were further characterized usingtransmission electron microscopy (TEM),X-ray diffraction (XRD), ultraviolet-visible (UV-VIS) spectroscopy and photoluminescence (PL) spectroscopy measurements. The co-doped CdS/ZnS nanocrystals show two peaks; the sharp emission peak is due to CdS quantum dot at 440 nm while the broad emission peak (520–650nm) is due typical to Co-Ni ions as compared to undoped CdS/ZnS nanocrystals.

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Citation Download Citation

Nadeem Sabir, Wahid Qayyum, Syed Zajif Hussain, Irshad Hussain, and Faheem Amin "Photoluminescence properties of Co and Ni co-doped CdS/ZnS core/shell nanoparticles", Proc. SPIE 10507, Colloidal Nanoparticles for Biomedical Applications XIII, 1050705 (23 February 2018); https://doi.org/10.1117/12.2291454

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