Mechanoluminescence enhancement of the layered-structure compound Sr₃Sn₂O₇:Sm³⁺ by H₃BO₃ addition

Abstract

We report mechanoluminescence (ML) properties in the layered-structure compound Sr 3 Sn 2 O 7 :Sm 3+ . In this study, boric acid (H 3 BO 3 ) was used as a flux in sintering process. By this step, we successfully enhanced the ML intensity of Sr 3 Sn 2 O 7 :Sm 3+ to 6-times as large as that of the samples without using H 3 BO 3 . It was also found that the addition of H 3 BO 3 leads to an anisometric shape of Sr 3 Sn 2 O 7 :Sm 3+ particles, which may contribute the enhancement of ML intensity.