Acetone complexes for high-performance perovskite photovoltaics with reduced nonradiative recombination

Wang, Zhen; Yang, Chang‐Lin; Cui, Yuying; Xie, Li; Hao, Feng

doi:10.1039/d1ma01165k

Cited by 2 publications

(1 citation statement)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to further demonstrate the morphological influence of MAPbBr 3 film on spin scattering, an external magnetic field ( H *) was applied to assist the film preparation. There are many methods to obtain a smooth, uniform, and flat OIHP films, such as solvent engineering, [ 41 ] compositional doping, [ 8 ] additive passivation, [ 42 ] and external magnetic field assistance. [ 43 ] In comparison, the usage of H * in a non‐contact way would avoid introducing additional components to complicate the spin process, so this method is very suitable for our work.…”

Section: Resultsmentioning

confidence: 99%

Tunable Spin Seebeck Thermopower in Nonlocal Perovskite MAPbBr₃‐Based Structure

Ren

Zhang

Tian

et al. 2023

Advanced Optical Materials

View full text Add to dashboard Cite

Recently organic–inorganic hybrid perovskite (OIHP) has risen suddenly to become a superstar for spintronic applications. Fundamental understanding of its spin properties is of great importance for future advances of its applications in spin‐optoelectronic devices. In this work, the authors pioneer modulation of the spin Seebeck thermopower (SSTP) in a Pt/MAPbBr3/NiFe nonlocal structure via longitudinal spin Seebeck effect measurements. They unravel the effective magnon injection into the perovskite film from the NiFe layer, and the tunability of SSTP in this structure is easily realized through the optimization of morphology and component engineering of the OIHP film. First, upon biasing samples with a magnetic flux density during the preparation process, a high‐quality OIHP film can be obtained, in which the spin scattering can be reduced leading to the SSTP enhancement. Second, by doping Cr into the OIHP lattice, the increased magnetic moment density and the additional in‐plane inverse Rashba–Edelstein effect synergistically improve spin accumulation in the Pt layer and thus tune its SSTP. Unveiling those phenomena is important to understanding magnon transport in the OIHP interlayer, which is instructive for designing magnonic devices based on OIHP film.

show abstract