Recent Progress in High‐efficiency Planar‐structure Perovskite Solar Cells

Abstract

Lead halide perovskite owns charge diffusion length in micrometer range, which makes the planar-structure solar cells possible. The simple and lowtemperature process of planar devices makes it very promising. The power conversion efficiency of planar perovskite solar cells has increased from 1.8% to 23.7% in past several years, which can compete with the mesoporous structure counterpart. In this minireview, recent progress in high-efficiency planar perovskite solar cells will be summarized. REVIEW Perovskite Solar CellsEnergy Environ. Mater. 2019, 2, 93-106

The Influence of the Thickness of Compact TiO2 Electron Transport Layer on the Performance of Planar CH3NH3PbI3 Perovskite Solar Cells

“…Although slightly higher efficiencies are obtained with mesoporous titania scaffolds [5], planar structures without them are more prospective from an industrial point of view. After it was proved that perovskites, unlike organic absorbers, generally have a long carrier diffusion length (a few hundreds of nanometers) [6], mesoporous TiO 2 was able to be omitted, allowing for the processing of whole solar cells below 200 • C. High efficiency of 21.6% for the planar n-i-p structure has been reported by Jiang et al [7], while other authors have claimed an even higher value of 23.7% [8]. In general, the PSC structure is composed of a perovskite absorber layer placed between a selective transport layer for holes (HTL) and electrons (ETL).…”

Narrow Absorption in ITO-Free Perovskite Solar Cells for Sensing Applications Analyzed through Electromagnetic Simulation

“…Moreover, we are witnessing a progress in efficiency [16,17] and stability [18] of perovskite solar cells that is boosting the scientific interest. This type of cell requires a transparent conductive oxide (TCO) electrode for its operation as an energy harvester [19]. Presently, TCO electrodes made of ITO (indium tin oxide) and FTO (fluorine tin oxide) remain as the most efficient in terms of its optical transparency and electrical conductivity.…”

Simulation of Absorption Spectra and Comparing Efficiency of Glass and ZnO (Protective Layer) based Solar Cell for Green Energy

“…Group 1 refers to glass (protective layer) based solar cells and group 2 refers to ZnO (protective layer) based solar cells (Praveen and Vijaya Ramaraju 2017). The pre-test analysis was done using clincalc.com by keeping gpower at 80%, threshold at 0.05%, confidence interval at 95%("High Efficiency Silicon Solar Cells" 2013) (Zhao et al 2019). Sample size of each group is 57 and the total sample size is 114.…”