Dual Mode Emission In NaYF4:Yb Er Nanorods For Photovoltaics Application

Ashwani Kumar1,2, Surya Kant Tripathi3, Abhay D.  Deshmukh4*  

1Department of Physics, Chandigarh University, Gharuan, Mohali, India

2Department of research, innovation & consultancy, Punjab Technical University, Jalandhar, India

3Department of Physics, Punjab University Chandigarh, Chandigarh, India

4Energy Materials and Devices Laboratory, Department of Physics, RTM Nagpur University, Nagpur, India

Adv. Mater. Lett., 2015, 6 (8), pp 701-705

DOI: 10.5185/amlett.2015.5869

Publication Date (Web): Aug 02, 2015

E-mail: abhay.d07@gmail.com

Abstract


In the present study, synthesis, characterization, of dual mode emission (Up and downconversion) in lanthanide-doped NaYF4 nanorods is presented. The unique and rich energy-level structure of these lanthanide ions allows for efficient spectral conversion, including up and downconversion processes mediated by resonant energy transfer between neighboring lanthanide ions. The careful examination of nanorods indicates the perfect uniformity, monodispersity and well defined crystallographic facets. Er3+, Yb3+ doped NCs exhibit green/red dual mode emission with low power density. As solar cells have majority of losses due to spectral mismatch, so with the help of these dual mode emission of nanorods can be utilized as up/down converter to increase the efficiency solar cell.

Keywords

Dual mode emission, nanorods, upconversion, downconversion.

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