Grain Quality Engineering for Organic Metal Halide Perovskites Using Mixed Antisolvent Spraying Treatment
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چکیده
منابع مشابه
Principles of Chemical Bonding and Band Gap Engineering in Hybrid Organic–Inorganic Halide Perovskites
The performance of solar cells based on hybrid halide perovskites has seen an unparalleled rate of progress, while our understanding of the underlying physical chemistry of these materials trails behind. Superficially, CH3NH3PbI3 is similar to other thin-film photovoltaic materials: a semiconductor with an optical band gap in the optimal region of the electromagnetic spectrum. Microscopically, ...
متن کاملLead Halide Perovskites and Other Metal Halide Complexes As Inorganic Capping Ligands for Colloidal Nanocrystals
Lead halide perovskites (CH3NH3PbX3, where X = I, Br) and other metal halide complexes (MX(n), where M = Pb, Cd, In, Zn, Fe, Bi, Sb) have been studied as inorganic capping ligands for colloidal nanocrystals. We present the methodology for the surface functionalization via ligand-exchange reactions and the effect on the optical properties of IV-VI, II-VI, and III-V semiconductor nanocrystals. In...
متن کاملTheory of Hydrogen Migration in Organic–Inorganic Halide Perovskites**
Solar cells based on organic-inorganic halide perovskites have recently been proven to be remarkably efficient. However, they exhibit hysteresis in their current-voltage curves, and their stability in the presence of water is problematic. Both issues are possibly related to a diffusion of defects in the perovskite material. By using first-principles calculations based on density functional theo...
متن کاملAre Mobilities in Hybrid Organic−Inorganic Halide Perovskites
Actually “High”? T outstanding performance of hybrid organic−inorganic perovskites (HOIPs) in photovoltaic (PV) devices is made possible by, among other things, outstanding semiconducting properties: long real charge carrier diffusion lengths, L, of up to 5 and possibly even 10 μm, as well as a lifetime τ of ∼1 μs or more in single-crystal and polycrystalline films. Top electronic transport mat...
متن کاملGiant photostriction in organic-inorganic lead halide perovskites.
Among the many materials investigated for next-generation photovoltaic cells, organic-inorganic lead halide perovskites have demonstrated great potential thanks to their high power conversion efficiency and solution processability. Within a short period of about 5 years, the efficiency of solar cells based on these materials has increased dramatically from 3.8 to over 20%. Despite the tremendou...
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ژورنال
عنوان ژورنال: Solar RRL
سال: 2020
ISSN: 2367-198X,2367-198X
DOI: 10.1002/solr.202070012