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Bookcover of Luminescence of M ions (M=C, Fe, Co, Ni, Mn, Ti) in α-Al₂O₃ phosphor
Booktitle:

Luminescence of M ions (M=C, Fe, Co, Ni, Mn, Ti) in α-Al₂O₃ phosphor

Insight into the effects of metal salt and sintering temperature on the luminescence of M:α-Al₂O₃ phosphor

Scholars' Press (2018-07-11 )

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ISBN-13:

978-620-2-31334-6

ISBN-10:
620231334X
EAN:
9786202313346
Book language:
English
Blurb/Shorttext:
A polyacrylamide gel route is used to synthesize the alumina-based light-emitting material M: α-Al₂O₃ (M=C, Fe, Co, Ni, Mn, Ti). Sintering temperature, pH value, organic additive, chelating agent, C and metal salt can significantly effects the formation of rhombohedral α-Al₂O₃ phase. The structure analysis shows that the carbon, Ti, Co, Ni doped Al₂O₃ powders obvious suppress the formation of α-Al₂O₃, in contrast, the Fe, Mn doped Al2O3 can accelerate the formation of α-Al₂O₃. The carbon and metal salt introduction to the Al₂O₃ precursor solution obvious influenced the sample morphology, band-gap, color and photoluminescence properties. The results show that the carbon and metal salt introduced to Al₂O₃ precursor solution reduces the band-gap values and enhances the photoluminescence properties of M: α-Al₂O₃ powders. The photoluminescence mechanisms of M: α-Al₂O₃ powders have been discussed on the basis of the experimental results. The M: α-Al₂O₃ composites making them promising candidates as efficient light-emitting materials, pigments, photocatalysts and radiation detection including space dosimetry, environmental dosimetry, medical dosimetry and personal dosimetry.
Publishing house:
Scholars' Press
Website:
http://www.scholars-press.com
By (author) :
Shifa Wang, Huajiang Gao, Hua Yang
Number of pages:
152
Published on:
2018-07-11
Stock:
Available
Category:
Physical chemistry
Price:
67.90 €
Keywords:
Polyacrylamide gel route, Alumina-based light-emitting material, Luminescence properties, Photoluminescence mechanisms, Radiation detection

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