However, once bromide (Br-) has been adopted to substitute the iodide (I-) in the MAPbI3 framework, it becomes very challenging to achieve uniform and high crystalline perovskite films. Here a synergistic effect of pseudo-halide anion thiocyanate (SCN-) and inorganic cation cesium (Cs+) on...
Cesium bromide is a chemical compound with the molecular formula CsBr and the CAS number 7787-69-1. It appears as a white crystalline solid with no distinct odor. The basic structure of cesium bromide consists of a cesium cation (Cs+) and a bromide anion (Br-) held together by ionic bo...
3. Use and Manufacturing3.1 Description Cesium iodide, with the chemical formula CsI, has the CAS number 7789-17-5. It appears as a white crystalline solid with no odor. The basic structure of cesium iodide consists of a cesium cation (Cs+) and an iodide anion (I-) arranged in a ...
Cation and anion immobilization through chemical bonding enhancement with fluorides for stable halide perovskite solar cells Nat. Energy, 4 (2019), pp. 408-415 Google Scholar 17 J.M. Ball, A. Petrozza Defects in perovskite-halides and their effects in solar cells Nat. Energy, 1 (2016), p...
A-cation, B-cation, and X-anion, respectively. Whentis larger than 1.0 or smaller than 0.71, a nonperovskite structure is favored. When the material has atof 0.9-1.0, an ideal cubic structure will form. In addition tot, the octahedral factorμis another important parameter and is defined ...
For the ABX3 perovskite structure, increasing the size of A cation and decreasing the radius of B cation and X anion can produce meaningful results. The different methods of stabilizing the α-phase of CsPbI3 are described in this section. 2.1.1 A site doping Cs is the largest one among ...
and corrosive zinc bromide salt solution. In addition, preburying cesium formate (CsFo) into the SnO2 electron transport layer (ETL) could stabilize the bottom side. The synergistic effect of cesium cation (Cs+) and formate anion (HCOO?) causes strain relaxation, void elimination, and defect ...
The present study point out the KF and CsF salts form ion pairs in tert -butanol, and the strong interaction of hydroxyl groups of tert -butanol with both cation and anion, combined with low entropy for formation of cluster in solution, facilitates the solubilization of inorganic salts, ...