Progress on synthesis and applications of hybrid perovskite semiconductor nanomaterials—A review

Highly Luminescent and Stable Green Quasi‐2D Perovskite‐Embedded Polymer Sheets by Inkjet Printing

“…It is known that perovskites are extremely sensitive to water, oxygen, and UV light, which may result in quick degradation of perovskites and decreasing of luminescence. [ 4–6 ] Quasi‐two‐dimensional (quasi‐2D) perovskites are formed by doping 2D perovskites into three‐dimensional (3D) perovskites. Typically, quasi‐2D perovskites can be described with the formula R 2 (ABX 3 ) n ‐1 BX 4 , where R is a bulky organic cation (such as an aliphatic or aromatic alkylammonium), A refers to smallish cation (for example, methylammonium or phenylethylammonium), B denotes a metal cation (Pb 2+ or Sn 2+ ), X is a halide ion (Cl − , Br − or I − ), and n refers to the number of inorganic layers stacked together.…”

Crystal structure features of CH3NH3PbI3−xBrx hybrid perovskites prepared by ball milling: a route to more stable materials

“…Organic-inorganic hybrid lead trihalide perovskites are highly promising semiconductors for both multi-junction photovoltaic and light emitting applications due to their tunable band gaps. [1][2][3] Methylammonium lead triiodide perovskites (MAPbI 3 ) have received much attention due to their ability to absorb broadband light below their band gap of 1.6 eV. However, MAPbI 3 still faces several complex challenges that need to be addressed, where its thermal and moisture instability has remained a major obstacle for commercialization.…”

“…Several methods have been developed for producing hybrid perovskites including precipitation from solution and gas-phase deposition. 1,11 In the solution-based method, stoichiometric mixtures of metal halides and organic ammonium halide precursors are normally dissolved in dimethylformamide (DMF) or dimethylsulfoxide (DMSO). In the gas-phase method, the precursors are generally co-evaporated in a vacuum deposition chamber onto a substrate by the use of two separate sources to form uniform and controlled-thickness films.…”

Perovskite Nanoparticles

“…NPSs is obtained on the films which exhibits intensive light. This technique is suitable for formation of mono disperse NPSs with various narrow emissions (full wind of half maximum (FWHM) is less than 40 nm) bands from green (FWHM: 22 nm) to near infrared (FWHM: 36 nm) by template optimization [37][38][39]. In a recent study, perovskite nanocrystals have been prepared in a nano-porous structure.…”