NIR Quantum Cutting in Y2O3 codoped with Ho3+,Yb3+ phosphor synthesized by Solution Route

NIR Quantum Cutting in Y₂O₃ codoped with Ho³⁺,Yb³⁺ phosphor synthesized by Solution Route

Seetu Jain¹, Puspalata¹, Prachi Tadge¹ and Sudeshna Ray^1*

¹Department of Physical Science, Rabindranath Tagore University, Bhopal, M.P. India

Abstract

An efficient route “Near-Infrared Quantum Cutting” and have been demonstrated in Ho³⁺ and Yb³⁺ co-activated Y₂O₃ sample, synthesized by a solution method. Quantum Cutting emission excited with 362 nm and 449 nm, of (1%) Ho³⁺ and (5 %) Yb³⁺ codoped Y₂O₃ samples, reveals the efficient emission in the green region which corresponds to ⁵S₂ – ⁵I₈ transition of Ho³⁺ at 549 nm in visible region. Ho³⁺/Yb³⁺ co-doped yttrium oxide phosphors have been synthesized and the phase analysis by powder XRD, measurement of SEM images, Steady State and Time-Resolved Photoluminescence Study has been investigated in detail. An orthorhombic of Y₂O₃: Ho³⁺, Yb³⁺ phosphor show a pure phase by X-Ray diffraction and Photoluminescence emission (PL) spectra, reveals the efficient emission in the green region which corresponds to ⁵S₂ – ⁵I₈ transition of Ho³⁺. This type of NIR QC phosphors has great promises in energy conversion for c-Si solar cell applications.