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electrocatalysts for designing highly active and durable electrocatalysis for oxygen evolution reaction (OER). Herein, we successfully enable LaFeO3 (denoted LFO) perovskite with impressive OER activity by systematically tailoring the Fe...

In this paper we report the structural and optical characterisation of 5 % Pr doped (Bi 0.5 3? Na 0.5 ? ) A Ti B O 3 (BNT) in A and B site of a distorted perovskite structure. The samples of pure and doped BNT were synthesized successfully by conventional solid state sintering method. The samples were sintered at 1100°C for 3 h. The sintered samples are subjected to structural and optical spectroscopy analysis such as Raman, Fourier Transform Infra red (FTIR) and Photoluminescence (PL). The XRD analysis show Pr doping of 5 % causes change in the lattice parameter and a significant change in the structure. In conjunction to XRD, Raman result shows a local structure distortion, in the region of 200-600 cm -1 , which confirms the formation of cluster type phase on Pr doping in both A and B site. Also, the degree of distortion in the structure is significantly high in the case of B site doping. This is confirmed in both XRD and Raman spectra. The UV-Vis spectra shows that Pr doping causes a red shift in the BNT band gap energy due to local distortion in A and B site doping. The PL emission observed at the excitation of 360 nm shows an intense red band on A site Pr doping, were the emission intensity decreases on B site doping. The observed results are discussed and reported.Electronic supplementary material The online version of this article (

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