Makumbane Vhahangwele

PhD student at the University of the Free State

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Down-conversion process in Y2O3:Ho3+, Yb3+ material for solar cell application

Recently, there have been extensive studies on luminescent materials-based lanthanide ions for solar cells application. Down-conversion (DC) luminescent materials have been proposed to enhance the energy conversion efficiency of solar cells through photon conversion process. DC converts single high energy photons into two near-infrared photons. DC materials are actively explored for reducing the spectrum mismatch loss and enhancing the efficiency of solar cells. The most studied couple for c-Si solar cells are Ln3+ -Yb3+ (Ln = Pr, Er, Ho, Tb, Nd and Tm) activated different host materials.