Preparation of Methylammonium Tin Iodide (CH3NH3SnI3) Perovskite Thin Films via Flash Evaporation

被引：13

作者：

Mortan, Claudiu ^{[1
]}

Hellmann, Tim ^{[1
]}

Clemens, Oliver ^{[2
]}

Mayer, Thomas ^{[1
]}

Jaegermann, Wolfram ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Dept Surface Sci, Inst Mat Sci, Otto Berndt Str 3, D-64287 Darmstadt, Germany

[2] Tech Univ Darmstadt, Dept Mat Design Synth, Inst Mat Sci, Alarich Weiss Str 2, D-64287 Darmstadt, Germany

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2019年 / 216卷 / 18期

关键词：

flash evaporation; methylammonium tin iodide; perovskite solar cells; SOLAR-CELLS; HALIDE PEROVSKITES; EFFICIENCY; STABILITY;

D O I：

10.1002/pssa.201900209

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using the one-step flash evaporation technique, it is possible to deposit a film of methylammonium tin iodide (MASI, CH3NH3SnI3) from the solid perovskite powder that is prepared by a mechanochemical synthesis, without the use of any solvents. The source material and the film are characterized by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The XPS measurements show that the MASI film is stoichiometric and is a p-type material with the Fermi level of 0.4 eV above the valence band maximum (VBM) and a bandgap of 1.3 eV. The XRD pattern of the film reveals the formation of MASI perovskite of high purity, crystallizing with pseudo-cubic symmetry, having the lattice parameters a approximate to c = 6.239(8) angstrom.

引用

页数：7

共 24 条

[1]

[Anonymous], 2010, Exposure to cadmium: a major public health concern

[2] Assessing the toxicity of Pb- and Sn-based perovskite solar cells in model organism Danio rerio [J].