Hydrothermal Synthesis of $\hbox{Eu}^{3+}$ -Doped $\hbox{Y}(\hbox{OH})_{3}$ Nanotubes as Downconversion Materials for Efficiency Enhancement of Screen-Printed Monocrystalline Silicon Solar Cells

Crisscrossed Eu
³⁺
-doped Y(OH)
₃
nanotubes spin cast on the front surface of the screen-printed monocrystalline silicon solar cells (SPMSSCs) have been fabricated to enhance the conversion efficiency (CE) of the SPMSSCs. Organic-solvent-dispersible Eu
³⁺
-doped Y(OH)
₃
nanotubes were hydrothermally synthesized according to the modified liquid-solid-solution synthetic strategy. Intense and well-resolved photoluminescent lines in the range of 525-700 nm are observed from the Eu
³⁺
-doped Y(OH)
₃
nanotubes. The achievement of a CE improvement of more than 2% absolute from 15.2% to 17.2% in the SPMSSCs with Eu
³⁺
-doped Y(OH)
₃
nanotubes was explored.