FAPbBr3 perovskite quantum dots as a multifunctional luminescent-downshifting passivation layer for GaAs solar cells

Nanocrystals as performance-boosting materials for solar cells

“…213–220 FAPbBr 3 perovskite NCs have been used as a multifunctional luminescent-downshifting passivation layer for GaAs solar cells. 221…”

“…11,14,15,17–22 Additionally, perovskite NCs are also good alternatives for light harvesting in solar cells. 12–14,16,23–28 Besides active layers (light harvesting layers), functional layers based on NCs, mainly including hole transport layers (HTLs), 29–99 electron transport layers (ETLs) 100–173 and interfacial functional layers (IFLs), 174–221 are of great importance in solar cells. Notably, NC additives also boost the performance of solar cells through defect passivation, plasmonic effect, solar concentration, light up-conversion and down-conversion/shifting, light scattering and reflection, and heat sinks.…”

Recent Advances in Colloidal Quantum Dots or Perovskite Quantum Dots as a Luminescent Downshifting Layer Embedded on Solar Cells

“…However, such devices exhibit low photon-to-electron conversion efficiency in short-wavelength regions due to the parasitic absorption of the window layer. To improve the device efficiency, Rwaimi et al proposed a GaAs solar cell that contained a window layer of AlInP and a FAPbBr3 PQD LDS layer [ 181 ]. The FAPbBr3 PQDs were spin-coated on the top of the window layer ( Figure 18 a) to enhance the EQE over its entire absorption band.…”

“… ( a ) Schematic diagram of the fabrication steps of a GaAs solar cell combined with PQDs on the top of the window layer; ( b ) photocurrent enhancement mechanisms [ 181 ]. Figure reproduced with permission from Elsevier.…”

Feasibility of Emission-Enhanced CsPbCl3 Quantum Dots Co-Doped with Mn2+ and Er3+ as Luminescent Downshifting Layers in Crystalline Silicon Solar Modules

“…At the same time, it should have good luminescence properties, including a sufficiently large Stokes shift and a high emission quantum efficiency. Suitable candidates include organic dyes, , rare-earth-doped materials, − phosphorescent nanomaterials, , and inorganic quantum dots (QDs). − Inorganic perovskite (CsPbX 3 ; X = Cl, Br, I) QDs have become popular in research on luminescent nanomaterials because of their ease of preparation, adjustable E g values, and high photoluminescence quantum yields (PLQYs). − CsPbX 3 QDs are favorable candidates for LDS materials . However, CsPbX 3 QDs have two obvious shortcomings for use as LDS materials: their narrow-band edge emission leads to high reabsorption losses, and their poor stability is not conducive to long-term storage and use. − …”