Magneto-optical studies of CdSe/CdMnS/CdS core/multi-shell colloidal nanoplatelets

Athos Petrou; Thomas A. Scrace; Joseph R. Murphy; Peiyao Zhang; Tenzin Norden; Tianmu Zhang; Tim Thomay; Alexander N. Cartwright; Savas Delikanli; Mehmet Zafer Akgul; Himli Volkan Demir

doi:10.1117/12.2239725

4 November 2016 Magneto-optical studies of CdSe/CdMnS/CdS core/multi-shell colloidal nanoplatelets

Athos Petrou, Thomas A. Scrace, Joseph R. Murphy, Peiyao Zhang, Tenzin Norden, Tianmu Zhang, Tim Thomay, Alexander N. Cartwright, Savas Delikanli, Mehmet Zafer Akgul, Himli Volkan Demir

Author Affiliations +

Proceedings Volume 9931, Spintronics IX; 99311W (2016) https://doi.org/10.1117/12.2239725
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

We studied the photoluminescence (PL)) from CdSe/CdMnS/CdS core/multi-shell colloidal nanoplatelets, a versatile platform to study the interplay of optical properties and nanomagnetism. The photoluminescence (PL) exhibits σ+ polarization in the applied magnetic field. Our measurement detects the presence of even a single magnetic monolayer shell. The PLL consists of a higher and a lower energy component; the latter exhibits a circular polarization peak. The time-resolved PL (trPL) shows a red shift as function of time delay. At early (later) times the trPL spectra coincide with the high (low) energy PL component. A model is proposed to interpret these results.

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Athos Petrou, Thomas A. Scrace, Joseph R. Murphy, Peiyao Zhang, Tenzin Norden, Tianmu Zhang, Tim Thomay, Alexander N. Cartwright, Savas Delikanli, Mehmet Zafer Akgul, and Himli Volkan Demir "Magneto-optical studies of CdSe/CdMnS/CdS core/multi-shell colloidal nanoplatelets", Proc. SPIE 9931, Spintronics IX, 99311W (4 November 2016); https://doi.org/10.1117/12.2239725

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