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Double perovskite nanocrystals such as Cs 2 AgBiX 6 (X = Cl, Br, I), [164] Cs 2 AgInCl 6 (including Mn-doped variant), [165] and Cs 2 AgIn x Bi 1−x Cl 6 [166] (including Na-doped variant) [167] have been studied as potential alternatives to lead-halide perovskites, although none exhibit narrow, high PLQY emission.
Crystal structure of CH 3 NH 3 PbX 3 perovskites (X=I, Br and/or Cl). The methylammonium cation (CH 3 NH 3 +) is surrounded by PbX 6 octahedra. [13]The name "perovskite solar cell" is derived from the ABX 3 crystal structure of the absorber materials, referred to as perovskite structure, where A and B are cations and X is an anion.
Perovskite (pronunciation: / p ə ˈ r ɒ v s k aɪ t /) is a calcium titanium oxide mineral composed of calcium titanate (chemical formula Ca Ti O 3).Its name is also applied to the class of compounds which have the same type of crystal structure as CaTiO 3, known as the perovskite structure, which has a general chemical formula A 2+ B 4+ (X 2−) 3. [6]
Ruddlesden-Popper (RP) phases are a type of perovskite structure that consists of two-dimensional perovskite-like slabs interleaved with cations.The general formula of an RP phase is A n+1 B n X 3n+1, where A and B are cations, X is an anion (e.g., oxygen), and n is the number of octahedral layers in the perovskite-like stack. [1]
Although there is a large number of simple known ABX 3 perovskites, this number can be greatly expanded if the A and B sites are increasingly doubled / complex AA ′ BB ′ X 6. [15] Ordered double perovskites are usually denoted as A 2 BB ′ O 6 where disordered are denoted as A(BB ′)O 3. In ordered perovskites, three different types of ...
Methylammonium lead halides (MALHs) are solid compounds with perovskite structure and a chemical formula of [CH 3 NH 3] + Pb 2+ (X −) 3, where X = Cl, Br or I. They have potential applications in solar cells, [2] lasers, light-emitting diodes, photodetectors, radiation detectors, [3] [4] scintillator, [5] magneto-optical data storage [6] and ...
Tin-based perovskites have the potential to outperform the PCE and stability of lead-based perovskite solar cells. [17] There are lots of ways to enhance the stability. Several experimental and simulation studies have predicted that the addition of the cesium Cs + can enhance the thermodynamic structural stability of FASnI3, prevent Sn2 ...
On the other hand, the quantum-confined ground-states of colloidal quantum dots (such as lead sulfide, PbS) incorporated in wider-bandgap host semiconductors (such as perovskite) can allow the generation of photocurrent from photons with energy below the host bandgap, via a two-photon absorption process, offering another approach (termed ...