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

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

Copyright © IAAM-VBRI Press

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.