2D/3D interface formation is predominantly achieved through solution-processing (vacuum-processing has also been demonstrated11), in which a 3D perovskite layer is first deposited and annealed, and the surface is then exposed to a solution containing a low concentration of large ammonium cations (als...
The title compound crystallizes in the monoclinic space group P21/c with two formula units per cell and the following parameters: a = 9.3580(10) ; b = 7.7360(10) ; c = 7.7590(10) , 尾 = 102.833(9) 掳 and V = 547.67(12) . Its 2D perovskite structure consists of metallic layers ...
This crystal structure was named after the mineral perovskite, which has the chemical formula CaTiO3 and was first discovered in the Ural Mountains of Russia. The general formula for the perovskite structure is ABX3, where: A represents a larger... optoelectronics Optoelectronics is a branch of ...
MXenes are a novel class of 2D materials composed of transition metal carbides, nitrides, or carbonitrides. The general formula of MXenes isMn+1XnTx, whereMrepresents a transition metal,Xstands for C and/or N element,Tdenotes surface terminations such as -OH, =O, and -F, andn = ...
Quasi two-dimensional (2D) lead halide perovskite materials have shown outstanding performance in various photoelectric devices, including perovskite light-emitting diodes (LEDs) and perovskite optical pumping lasers. Due to the structure diversity of bu
Here, we report on the behavior of Tz = 1,2,4-triazolium as an A-site cation as well as a spacer cation in new perovskite compounds. We describe the synthesis and structure–property relationships of a new family of hydrogen-bonding stabilized 2D perovskites (IPA) 2 (Tz) n1 Pb n Br...
Inorganic-Cation Pseudohalide 2D Cs2Pb(SCN)2Br2 Perovskite Single Crystal Various layered lead halide perovskites based on the Ruddlesden-Popper (RP) structure with the general formula of An+1BnX3n+1(n = 1, 2, 鈥 ) have been devel... CH Liao,CH Chen,J Bing,... - 《Advanced Materials...
Excitonic Many-Body Interactions in Two-Dimensional Lead Iodide Perovskite Quantum Wells many-body optical responses of 2D perovskites with the general formula of (C4H9NH3I)2(CH3NH3I)n-1(PbI2)n, where n (= 1, 2, 3) is the number of lead iodide unit cells in the direction perpendicular ...
We have preparedtwo new lead halides with the novel general formula of DMA 7 Pb 4 X 15 (DMA = [(CH 3 ) 2 NH 2 ] + and X = Cl – or Br – ) by using an easy route under mild conditions at roomtemperature. These compounds exhibit an unprecedented crystal structure,are formed...
the pressure control in the 2D perovskite structure becomes a vital means17,18. Currently, most of the research focuses on structure modulation via diamond anvil cell (DAC), while the kinetics of exciton transport after pressure is of little concern19,20. Ultrafast laser shocking has a much sho...