Theoretical Study on Novel and Efficient Near-Infrared Multiphoton Quantum Splitting in $\hbox{Ho}^{3+}$ Ion-Doped $ \beta\hbox{-NaYF}_{4}$ Phosphor for Solar Energy Conversion

Abstract

A novel application of near-infrared quantum splitting (NIR QS) that splits one ultraviolet-visible photon into NIR multiphotons can be developed for solar energy conversion. In this paper, we theoretically investigate the underlying mechanism of NIR QS in Ho3+ single- and Ho3+-Yb3+ dual-doped β-NaYF4 by modeling and solving rate and power propagation equation system. The highest quantum efficiency is estimated to be 257% among studied systems. The total amount of output NIR photons may be increased to meet the purpose of potentially enabling a Si-cell with a photoelectric conversion efficiency enhancement. This paper could benefit for further exploring a promising NIR QS system in the exciting field of photonic devices and materials.