Synthesis and characterization of CsSnI3 thin films

Abstract

We report on the synthesis and characterization of CsSnI3 perovskite semiconductor thin films deposited on inexpensive substrates such as glass and ceramics. These films contained polycrystalline domains with typical size of 300 nm. It is confirmed experimentally that CsSnI3 compound in its black phase is a direct band-gap semiconductor, consistent with the calculated band structure from the first principles. The band gap is determined to be ∼1.3 eV at Γ point at room temperature.

Perovskite-based low-cost and high-efficiency hybrid halide solar cells

“…Obviously the choice of the organic cations is limited because of the restricted dimension of the cuboctahedral hole formed by the 12 nearest-neighbor X atoms. In fact, the compounds CH 3 NH 3 MX 3 , with M Sn, Pb and X Cl, Br, and I, have been successfully synthesized [76][77][78][79][80][81]. Each of these systems has a cubic structure at the highest temperature phase.…”

MODULATING CH3NH3PbI3 PEROVSKITE CRYSTALLIZATION BEHAVIOR THROUGH PRECURSOR CONCENTRATION

“…7 The optical and electronic properties of perovskite materials can be tuned to a great extent depending on the type and size of the metal ion and the organic cation. [8][9][10][11][12][13][14][15][16] Among them, methylammonium lead iodide (CH 3 NH 3 PbI 3 ) has become a very promising material for high-e±ciency solar cells, 1,[3][4][5][16][17][18][19][20][21] because of its broad spectral response, 1,16,17 high optical cross section, 16,17,22 as well as ease of processing in solution methods. 1,2,17,23 It was¯rst employed in liquid dyesensitized solar cell device con¯guration as light harvester.…”

Some Features of Dye-sensitized Solar Cell Combining with Single-walled Carbon Nanotubes

“…9. Figure 5(a) also shows the comparison of absorbance of N719 dye+TiO 2 and CsSnI 3 only on indium tin oxide (ITO).…”