Electron transport layer engineering with rubidium chloride alkali halide to boost the performance of perovskite absorber layer

Ionic Liquid Passivator for Mesoporous Titanium Dioxide Electron Transport Layer to Enhance the Efficiency and Stability of Hole Conductor-Free Perovskite Solar Cells

“…During ms-TiO 2 fabrication, the RbCl dopant was incorporated into the ms-TiO 2 solution to boost the optoelectronic features of ETLs, as reported in our previous work. 33 For the ms-TiO 2 /perovskite interface passivation, TMAOH solutions were directly dropped onto the ETL surface during the spin-coating process at different speeds, followed by a postannealing step at 150 °C for 20 min to evaporate the residual solution. Then, MAPbI 3 films were fabricated by an antisolvent deposition approach with chlorobenzene solvent assistance.…”

“…In this study, the HTL-free PSCs possessing the structure of FTO/ho-TiO 2 /ms-TiO 2 / MAPbI 3 /Au frameworks are constructed to explore the passivation impact of TMAOH ionic liquid, as shown in Figure . During ms-TiO 2 fabrication, the RbCl dopant was incorporated into the ms-TiO 2 solution to boost the optoelectronic features of ETLs, as reported in our previous work . For the ms-TiO 2 /perovskite interface passivation, TMAOH solutions were directly dropped onto the ETL surface during the spin-coating process at different speeds, followed by a postannealing step at 150 °C for 20 min to evaporate the residual solution.…”

“…The diluted ms-TiO 2 should be stirred at room temperature (RT) for 1 day to ensure homogeny of the stock solution. As reported previously, RbCl was added to the ms-TiO 2 and stirred for two more hours at RT. The final solution was used for the deposition of ETLs. Perovskite solution: 692 mg of PbI 2 was poured in 0.953 mL of N , N -dimethylformamide (DMF, 99.8%, Merck) and 0.107 mL of dimethyl sulfoxide (DMSO, 99.8%, Merck).…”

“…The diluted ms-TiO 2 should be stirred at room temperature (RT) for 1 day to ensure homogeny of the stock solution. As reported previously, RbCl was added to the ms-TiO 2 and stirred for two more hours at RT. The final solution was used for the deposition of ETLs.…”

Numerical investigation of single junction environmental friendly double perovskite ( Cs 2 AuBiCl 6 ) solar cell with 20.5% power conversion efficiency and negligible hysteresis

“…Over the past decade, interest in organo metal halide perovskite has exploded due to its extraordinary optoelectronic features, such as suitable bandgap, cheap fabrication cost, high carrier mobility and exceptional power conversion efficiency (PCE) 1‐4 . Furthermore, the toxicity due to the presence of lead and the stability of commonly used metal halide perovskite absorbers are the primary reasons they are less popular in commercial uses on a wide scale since they may not comply with environmental standards in these applications 5‐12 . As a result, it is necessary to develop new, durable and non‐toxic perovskite in order to address these disadvantages.…”