LUMINESCENCE OF BI -DOPED CAS PHOSPHOR

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HESARAKI S.; MOZTARZADEH F.; SOULATI HASHJIN M.; AGHA BABAZADEH R.; ZAMANIAN A.

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Journal: INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH) Year:2004 | Volume:15 | Issue:2 Page(s): 101-105

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Title

LUMINESCENCE OF BI -DOPED CAS PHOSPHOR

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Keywords

LUMINESCENCEQ4

PHOSPHORESCENT PIGMENTQ4

CALCIUM SULFIDEQ4

Abstract

Bismuth doped CALCIUM SULFIDE phosphor was prepared from a solid-state reaction between a calcium salt and sulfur at presence of flux.The product was analyzed by x-ray diffraction, ICP and luminance spectrophotometry, (LS) techniques.Excitation spectra of the CaS: Bi shows three bands at 260 nm corresponds to the band gap of CaS, 320nm corresponds to IS0→1P1 transition of Be3+ and 420 nm corresponds to IS0→3P1 transition of Be+3.Emission spectra of the caS: Bi shows two bands at 450 nm (intense) from 3P1→1S0 transition of Be3+ and 580 nm (weak) that is from recombination of electron donors Bi3+Ca2+/Vs2- with Na+ Ca2+ acceptors.Also, decay curve of the CaS: Bi indicates that the material has long afterglow phosphorescence.

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APA: Copy

HESARAKI, S., MOZTARZADEH, F., ZAMANIAN, A., SOULATI HASHJIN, M., & AGHA BABAZADEH, R.. (2004). LUMINESCENCE OF BI -DOPED CAS PHOSPHOR. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH), 15(2), 101-105. SID. https://sid.ir/paper/52597/en

Vancouver: Copy

HESARAKI S., MOZTARZADEH F., ZAMANIAN A., SOULATI HASHJIN M., AGHA BABAZADEH R.. LUMINESCENCE OF BI -DOPED CAS PHOSPHOR. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH)[Internet]. 2004;15(2):101-105. Available from: https://sid.ir/paper/52597/en

IEEE: Copy

S. HESARAKI, F. MOZTARZADEH, A. ZAMANIAN, M. SOULATI HASHJIN, and R. AGHA BABAZADEH, “LUMINESCENCE OF BI -DOPED CAS PHOSPHOR,” INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH), vol. 15, no. 2, pp. 101–105, 2004, [Online]. Available: https://sid.ir/paper/52597/en

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