Highly efficient and stable tandem luminescent solar concentrators based on carbon dots and CuInSe<sub>2−<i>x</i></sub>S<sub><i>x</i></sub>/ZnS quantum dots
Lianju Wang, Yiqing Chen, Yueling Lai, Xianglong Zhao, Kanghui Zheng, Ruilin Wang, Yufeng Zhou
Abstract
) based on CuInSeS/ZnS QDs under one sun illumination are 0.46% and 0.5%, respectively. For single CuInSeS/ZnS QD based LSCs at a low concentration (0.039 wt%), external and internal quantum efficiencies reach up to 2.87% and 36.37%, respectively. After UV illumination for 8 h, bottom LSCs based on CuInSeS/ZnS QDs retain 93.22% of the initial PL emission, which is higher than that of LSCs (∼80%) without the CD protection. The highly efficient and stable tandem LSCs employing green CDs and NIR CuInSeS/ZnS QDs as PL emitters pave the way for the realization of large area building-integrated photovoltaic (BIPV) devices.
Topics & Concepts
Quantum dotTandemMaterials scienceLuminescencePhotoluminescenceOptoelectronicsQuantum yieldLight-emitting diodeNanotechnologyPhotovoltaic systemBand gapDiodeOpticsPhysicsFluorescenceElectrical engineeringComposite materialEngineeringPhotochemistry and Electron Transfer StudiesQuantum Dots Synthesis And PropertiesOrganic Light-Emitting Diodes Research