Electrodeposition of Lithium-Based Upconversion Nanoparticle Thin Films for Efficient Perovskite Solar Cells

Abstract

In this work, high-quality lithium-based, LiYF4=Yb3+,Er3+ upconversion (UC) thin film was electrodeposited on fluorene-doped tin oxide (FTO) glass for solar cell applications. A complete perovskite solar cell (PSC) was fabricated on top of the FTO glass coated with UC thin film and named (UC-PSC device). The fabricated UC-PSC device demonstrated a higher power conversion efficiency (PCE) of 19.1%, an additional photocurrent, and a better fill factor (FF) of 76% in comparison to the pristine PSC device (PCE = ~16.57%; FF = 71%). Furthermore, the photovoltaic performance of the UC-PSC device was then tested under concentrated sunlight with a power conversion efficiency (PCE) of 24% without cooling system complexity. The reported results open the door toward efficient PSCs for renewable and green energy applications.

Recent Advances in Nanostructured Inorganic Hole-Transporting Materials for Perovskite Solar Cells

“…At present, the utilization of solar energy can be mainly categorized into photovoltaic (solar cells), photocatalysis and photothermal technologies [ 6 , 7 , 8 , 9 , 10 ]. Among them, solar cells are considered the most attractive ways to convert solar energy into electricity directly [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Nowadays, the commercialized photovoltaic devices are silicon solar cells, showing high power conversion efficiencies (PCEs) and superb operational stability [ 18 , 19 ].…”

Electrodeposited NaYF4:Yb3+, Er3+ up-conversion films for flexible neural device construction and near-infrared optogenetics

“…8,33 On the other hand, electrodeposition offers a simple and controllable route to prepare thin up-conversion films with good adhesion on both planar and curved substrates. 34,35 In this work, we developed a flexible neural device by integrating polymer-based microelectrodes with electrodeposited NaY-F 4 :Yb 3+ , Er 3+ UC films. The NIR-to-green light conversion of the electrodeposited NaYF 4 :Yb 3+ , Er 3+ UC films was optimized through chemical composition and crystalline phase engineering.…”