CsPbBr 3  Perovskite–Coated Paper Substrate for the Cost‐Effective Detection of Fluoride, Chloride, and Iodide Ions in Water | Zendy

Sandeep K. | Zendy; Hamida K. T. | Zendy

Premium

CsPbBr 3 Perovskite–Coated Paper Substrate for the Cost‐Effective Detection of Fluoride, Chloride, and Iodide Ions in Water

Author(s) -

Sandeep K.,

Hamida K. T.

Publication year - 2021

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.202100101

Subject(s) - iodide , halide , fluoride , chloride , inorganic chemistry , ion , chemistry , substrate (aquarium) , ion exchange , perovskite (structure) , materials science , organic chemistry , oceanography , geology

Developing a simple and cost‐effective substrate for the detection of the halide ions present in water is extremely important due to their adverse effects at higher concentrations. A good substrate should behave differently in the presence of different halide ions. Herein, a CsPbBr 3 ‐coated paper substrate is used for the detection of fluoride, chloride, and iodide ions. As a result of the fast anion exchange reactions, in the presence of each halide ion, the CsPbBr 3 ‐coated paper shows different emission behaviors. The presence of chloride and iodide ions results in blueshifted and redshifted absorption and emission, respectively. In the presence of fluoride ions, anion exchange followed by decomposition of the perovskite nanocrystal is observed. The anion exchange reactions of CsPbBr 3 perovskites are faster than the moisture‐induced decomposition, which enables the detection of micromolar concentrations of fluoride, chloride, and iodide ions in water.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research