Directional Quantum Dot Emission for Tetracene/Si Singlet-Triplet Down-Conversion Photovoltaics and Luminescent Solar Concentrators

Efficient light management is essential to achieve high-efficiency solar cell geometries: ensuring the absorption of sunlight in the active region is a fundamental principle of a photovoltaic device. By controlling the spectrum and angular distribution of light in the device, the absorption in the active region can be enhanced. We investigate two solar cell geometries in which we control the directional emission of quantum dots (QDs): a tetracene\Si solar cell based on singlet-triplet down-conversion and a luminescent solar concentrator (LSC) device.