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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]
The lattice of an antiperovskites (or inverse perovskites) is the same as that of the perovskite structure, but the anion and cation positions are switched. The typical perovskite structure is represented by the general formula ABX 3 , where A and B are cations and X is an anion.
PVSC is also where the most notable breakthroughs in PV are often first announced, such as record Solar-cell efficiency, [4] new technologies like perovskite, TOPCon, heterojunction (HJT), and tandem cells, derivation of new algorithms, and discoveries of new phenomena such as Potential-induced degradation and light and elevated temperature ...
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A major focus in current research on perovskite solar cells is how to make them safer, based on toxicity concerns with the materials that are used in perovskites and the solvents that are used for deposition. This focus on producing safer materials is also a major focus for perovskite solar cell research more broadly. In the case of ...
Silva's research on nanotechnology, large-area electronics, carbon nanotubes, perovskite solar cell, and organic solar cell has resulted in over 680 presentations at international conferences and over 650 journal papers. [7] As of March 2023, he has over 29,000 citations with an H-index of 87. [16]
Under stress, perovskite solar cells become unstable and release gas. [11] [12] Ho-Baille has made use of gas chromatography–mass spectrometry to identify the degradation pathways of perovskite solar cells. She showed it is possible to prevent degassing using a low-cost polymer-glass stack, which protects the perovskite solar cells from ...