Presence of Metal Chloride for Minimizing the Halide Deficiency and Maximizing the Doping Efficiency in Mn(II)-Doped CsPbCl3 Nanocrystals
Samrat Das Adhikari a, Narayan Pradhan b
a Universitat Jaume I, Institute of Advanced Materials (INAM) - Spain, Avinguda de Vicent Sos Baynat, Castelló de la Plana, Spain
b Departament of Materials Science, Indian Association for the Cultivations of Science, Kolkota, India, 700032, India
Poster, Samrat Das Adhikari, 030
Publication date: 23rd April 2020

Pretreatment using metal chlorides during the formation of halide deficient free perovskite nanocrystals is reported. Among several metal chlorides, Cu(II)Cl2 was observed to be ideal for the synthesis of highly emitting CsPbCl3 nanocrystals at high reaction temperature. Because high temperature remained more favorable for the dopant insertion, doping of Mn(II) was carried out under this halide-rich system, and nearly 68% photoluminescence quantum yield was recorded. Analysis could not provide strong evidence of insertion of Cu(II) inside the nanocrystals; rather, it was established that Cu(II)Cl2 in the system helped to stabilize the reaction even at and above 260 °C and provided an adequate chloride source for obtaining the highly emitting host as well as doped nanocrystals.

Prof. Narayan Pradhan

Dr. Iván Mora-Seró

Lab-mates of IACS, India

Lab-mates of INAM, UJI, Spain

IACS, India

INAM, UJI, Spain

© Fundació Scito
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