Ca1-xSrxAl2O4:Eu2+ 형광체의 상전이 및 발광특성에 관한 연구

박윤진; 송현돈; 정상현; 이지희; 황민하; 김영진; Yun Jin Park; Hyundon Song; Sang Hyun Jung; Jee Hee Lee; Min Ha Hwang; Young Jin Kim

Korean Journal of Materials Research, Vol.18, No.1, 1-4, January, 2008

DOI10.3740/MRSK.2008.18.1.001 Export Citation

Ca1-xSrxAl2O4:Eu2+ 형광체의 상전이 및 발광특성에 관한 연구

Phase Transformation and Luminescent Properties of Ca1-xSrxAl2O4:Eu2+ Phosphors

박윤진, 송현돈¹, 정상현², 이지희, 황민하, 김영진 ^†

경기대학교 재료공학과
¹(주)에피플러스
²(주)대주 전자재료

Yun Jin Park, Hyundon Song¹, Sang Hyun Jung², Jee Hee Lee, Min Ha Hwang, and Young Jin Kim^†

Dept. of Materials Science and Engineering, Kyonggi University, Korea
¹EPIPLUS Inc, Eyon-Hansan Industrial Park, Pyongtaek, Korea
²DAEJOO ELECTRONIC MATERIALS Co., Shiwha Ind., Estate IRA-110, Shiheung, Korea

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The phase transformations and luminescent properties of Eu-doped Ca1-xSrxAl2O4 phosphors were investigated. Ca1-xSrxAl2O4:Eu2+ phosphors were synthesized by a solid-state reaction with a flux, H3BO3. A phase transformation from monoclinic CaAl2O4 to monoclinic SrAl2O4 was observed as the x values increased. A high-temperature hexagonal phase of SrAl2O4 was formed during this transformation as an intermediate phase under an H2 atmosphere due to oxygen vacancies; this did not occur in an air atmosphere. Accordingly, the emission spectra shifted from a blue region to a green region as x increased.

Keywords:strontium-aluminates;calcium-aluminates;luminescence;europium;phase transformation

[References]

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Aitasalo T, Hilsa J, Jungner H, Lastusaari M, Niittykoski J, Paekkinen M, Valtonen R, Opt. Mater., 26, 113 (2004)
Fu ZL, Zhou SH, Yu YN, Zhang SY, Chem. Phys. Lett., 395(4-6), 285 (2004)
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Aitasalo T, Hilsa J, Jungner H, Lastusaari M, Niittykoski J, J. Lumin., 94, 59 (2001)
Hilsa J, Jungner H, Lastusaari M, Niittykoski J, J. Alloys Comp., 323, 326 (2001)
Lin YH, Zhang ZT, Tang ZL, Zhang JY, Zheng ZS, Lu X, Mater. Chem. Phys., 70(2), 156 (2001)
Shi WS, Yamada H, Nishikubo K, Kusaba H, Xu CN, J. Electrochem. Soc., 151(5), H97 (2004)
Ravichandran D, Johnson ST, Erdei S, Roy R, White WB, Display, 19, 197 (1999)
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Ju SH, Kim SG, Choi JC, Park HL, Mho SI, Kim TW, Mater. Res. Bull., 34(12-13), 1905 (1999)
Tang TP, Lee CM, Yen FC, Ceram. Int., 32, 665 (2006)
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Ito S, Banno S, Suzuki K, Inagaki M, Phys Z, Chem. Neuw Folge, 105, 173 (1977)
Jia DD, Wu BQ, Zhu J, Chin. Phys., 9, 69 (2002)

[Related Articles]

[1] Chen LT, Hwang CS, Sun IL, Chen IG, J. Lumin., 118, 12 (2006)

[2] Aitasalo T, Hilsa J, Jungner H, Lastusaari M, Niittykoski J, Paekkinen M, Valtonen R, Opt. Mater., 26, 113 (2004)

[3] Fu ZL, Zhou SH, Yu YN, Zhang SY, Chem. Phys. Lett., 395(4-6), 285 (2004)

[4] Aitasalo T, Hilsa J, Jungner H, Lastusaari M, Niittykoski J, J. Alloys Comp., 341, 76 (2002)

[5] Aitasalo T, Hilsa J, Jungner H, Lastusaari M, Niittykoski J, J. Lumin., 94, 59 (2001)

[6] Hilsa J, Jungner H, Lastusaari M, Niittykoski J, J. Alloys Comp., 323, 326 (2001)

[7] Lin YH, Zhang ZT, Tang ZL, Zhang JY, Zheng ZS, Lu X, Mater. Chem. Phys., 70(2), 156 (2001)

[8] Shi WS, Yamada H, Nishikubo K, Kusaba H, Xu CN, J. Electrochem. Soc., 151(5), H97 (2004)

[9] Ravichandran D, Johnson ST, Erdei S, Roy R, White WB, Display, 19, 197 (1999)

[10] Chen LT, Hwang CS, Chen IG, Chang SJ, J. Alloys Comp., 426, 395 (2006)

[11] Ju SH, Kim SG, Choi JC, Park HL, Mho SI, Kim TW, Mater. Res. Bull., 34(12-13), 1905 (1999)

[12] Tang TP, Lee CM, Yen FC, Ceram. Int., 32, 665 (2006)

[13] Chang C, Mao D, Shen J, Feng C, J. Alloys Compd., 348, 224 (2003)

[14] Prodjosantoso AK, Kennedy BJ, Mater. Res. Bull., 38(1), 79 (2003)

[15] Zhu C, Yang Y, Chen G, Baccaro S, Cecilia A, Falconieri M, J. Phys. Chem. Solids, 68, 1721 (2007)

[16] Ito S, Banno S, Suzuki K, Inagaki M, Phys Z, Chem. Neuw Folge, 105, 173 (1977)

[17] Jia DD, Wu BQ, Zhu J, Chin. Phys., 9, 69 (2002)