2013
DOI: 10.1016/j.mssp.2012.12.010
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Local electronic structure, optical bandgap and photoluminescence (PL) properties of Ba(Zr0.75Ti0.25)O3 powders

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Cited by 32 publications
(3 citation statements)
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“…The PL response is being studied by different researchers, due to the applicability in optics devices. This has already been reported in different materials with a perovskite structure [21][22][23][24][25][26], among them the CTO [27] CCTO [22,[28][29][30][31] and CCTO/CTO [32]. Usually, the PL behavior is attributed to multiphonon processes, i.e., a system in which relaxation occurs through several paths located in states of energy above the valence band and below the conduction band [33].…”
Section: Introductionmentioning
confidence: 74%
“…The PL response is being studied by different researchers, due to the applicability in optics devices. This has already been reported in different materials with a perovskite structure [21][22][23][24][25][26], among them the CTO [27] CCTO [22,[28][29][30][31] and CCTO/CTO [32]. Usually, the PL behavior is attributed to multiphonon processes, i.e., a system in which relaxation occurs through several paths located in states of energy above the valence band and below the conduction band [33].…”
Section: Introductionmentioning
confidence: 74%
“…Assim, é necessária a utilização de técnicas avançadas no tratamento das águas superficiais, uma vez que os métodos convencionais não são suficientes para remoção total deste contaminante (SEIFFERT, 2007). Vale ressaltar que, os segmentos econômicos devem reduzir progressivamente o impacto ambiental, fornecer serviços que satisfaçam as necessidades humanas e aplicar tecnologias que possam contribuir para a diminuição das fontes contaminantes (HIRSCHLER, 2008;CAVALCANTE et al, 2013).…”
Section: Introductionunclassified
“…The importance of surface water protection to the sustainability of the planet already is an incontestable fact, and the industries hold great responsibility for maintaining the effluent discharges within the environmental standards (Seiffert, 2007). Cavalcante et al (2013) state that the various economic segments should fit the eco efficiency concept by progressively reducing the environmental impact and the natural resources consumption, and to provide goods / services at competitive prices that meet the human needs, contributing to the populations' life quality. Hirschler (2008) reinforces that the industries need to ensure the maintenance of the productive process with the application of modern technologies that can also contribute to reduce contaminant sources.…”
Section: Introductionmentioning
confidence: 99%