Band gap tuning & Room temperature ferromagnetism of hydrothermally prepared Cobalt doped CaSnO₃ nanopowders

Light Harvesting from Oxygen Vacancies and A- and B-Site Dopants in CaSnO3 Perovskite through Efficient Photon Utilization and Local Site Engineering

“…Zhang et al have reported a broad band in the blue emission region centered around 410 nm . Sumithra and group have reported a weak blue band centered around 430 nm and a strong near-band-edge emission centered on 320 nm . Tsega et al have reported the emission spectrum which is quite similar in pattern to the one reported here but the intensity of blue band was overwhelmingly large when compared to other bands in their samples .…”

“…Perovskites are considered one of the most investigated materials for a variety of applications owing to their unique electronic, optical, magnetic, catalytic, and ferroelectric properties. ,, Among perovskites, CaSnO 3 (CSO), a high band gap semiconductor with a band gap of ∼4.7 eV is considered a highly diverse oxide owing to its unique structure, properties, and multifunctional applications. These included optoelectronics, catalysis, sensors, photodetectors, phosphors, lithium-ion batteries, and so forth. ,− Defects such as antisites, Schottky, oxygen vacancies (OVs), and so forth are abundantly present in CSO and are reported to have significant influence on its optical, catalytic, magnetic, and electrical properties. − These defects can also lead to interesting photoluminescence properties in CSO as well, which is an extremely important area of research in these days for designing dopant- and lattice strain-free phosphors . Each defect has a specific role and can be engineered to achieve specific applications.…”

Solvothermal synthesis of Fe doped MnSnO 3 : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

“…Where n depends upon the electronic transition, if n = 1/2, 2, 2/3, 3 represents indirect allowed, direct allowed, indirect forbidden, and direct forbidden transition, respectively. 2,24 It has been observed that the band gap value of pristine is 3.1 eV. Upon increasing, the concentration of dopant there is a formation of intermediate energy level, which lie in between the valance band and conduction band.…”

“…1 The investigation for desirable properties of DMO can be fetched by introducing some impure element in the parent material to enhance the magnetic properties. 2 Late back charge was considered the fundamental property but with the advancement in the science and technology spin, which uses only one degree of freedom of electron used for various magneto-electronic applications. 3 Besides these applications, several perovskite oxides have been significantly investigated for various intriguing applications.…”

Innovation of Novel Stone-Like Perovskite Structured Calcium Stannate (CaSnO3): Synthesis, Characterization, and Application Headed for Sensing Photographic Developing Agent Metol

“…Accordingly, calcium stannate (CaSnO 3 ) had generated much concern in researchers because of its optical, dielectric, and semiconducting properties . Consequently, the synthesis of PM CaSnO 3 had been trialed using various methods for numerous applications.…”