Unraveling the microstructural and optoelectronic properties of solution-processed Pr-doped SrSnO₃ perovskite oxide thin films

Abstract

Unraveling the optical, electronic and electrical properties of high-quality nanorod morphology spray-coated Pr-doped SrSnO3 perovskite oxide thin films.

Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

“…Attempts were introduced in the literature to modulate the band gap, seeking visible absorption 23,24 . However, the wide band-gap BaTiO 3 is still very beneficial as a UV absorber 26,27 , especially in perovskite solar cells 28,29 , as reported in 20 . Another work utilized BaTiO 3 in perovskite thin films but with Si-doping 25 and other dopants 30 .…”

Improving the Efficiency and Stability of Perovskite Solar Cells by Refining the Perovskite-Electron Transport Layer Interface and Shielding the Absorber from UV Effects

“…These properties enhance their ability to protect PSCs from environmental elements and UV radiation. − In addition, doping SrSnO 3 into the ETL builds upon its electronic capabilities . This may enhance the energy level and improve the alignment, leading to higher efficiency in injecting electrons from the perovskite layer to the external circuit. − SrO in PSCs serves to mitigate defects at the interface between the perovskite and electron transport layers, decreasing charge recombination and enhancing electron transfer. These improvements result in a higher solar cell efficiency, reduced hysteresis, and enhanced device stability and reliability. − Consequently, the incorporation of SnO 2 as an ETL, SrO passivation, and SrSnO 3 for UV filtering in perovskite solar cells has led to significant performance improvements.…”

“… 37 This may enhance the energy level and improve the alignment, leading to higher efficiency in injecting electrons from the perovskite layer to the external circuit. 38 − 40 SrO in PSCs serves to mitigate defects at the interface between the perovskite and electron transport layers, decreasing charge recombination and enhancing electron transfer. These improvements result in a higher solar cell efficiency, reduced hysteresis, and enhanced device stability and reliability.…”

Post-annealing optimization of the heteroepitaxial La-doped SrSnO3 integrated on silicon via ALD

“…13,14 To further enhance the conductivity and enlarge the band gap tuning range, numerous studies introduced lanthanides, especially lanthanum (La), into BaSnO 3 (BSO) and SrSnO 3 (SSO) single-crystal films as A-site dopants. [15][16][17][18][19][20][21] In 2012, Kim et al demonstrated that the mobility of the bulk La-doped BSO single-crystal 22 could reach up to 320 cm 2 V −1 s −1 compared to 120-180 cm 2 V −1 s −1 of the La-doped BSO single-crystal thin films at RT. [23][24][25] The high mobility enables the integration of BSO or La-doped BSO as the conductive channel with various high-κ perovskites, such as SrTiO 3 (STO), 26 BaHfO 3 , 27 LaInO 3 , 28 and BaTiO 3 (BTO), 29 as the gate dielectric.…”