수열합성에 의해 제조된 YVO4: Eu3+ 형광체의 발광특성

문영민; 최성호; 정하균; 임상호; Yong-Min Moon; Sungho Choi; Ha-Kyun Jung; Sang Ho Lim

Korean Journal of Materials Research, Vol.18, No.10, 511-514, October, 2008

DOI10.3740/MRSK.2008.18.10.511 Export Citation

수열합성에 의해 제조된 YVO4: Eu3+ 형광체의 발광특성

Luminescent Properties of YVO4 : Eu3+ Phosphor by Using Hydrothermal Synthesis

문영민, 최성호^†, 정하균, 임상호 ¹

한국화학연구원 화학연구단
¹고려대학교 신소재공학부

Yong-Min Moon, Sungho Choi^†, Ha-Kyun Jung, and Sang Ho Lim¹

Advanced Materials Division, Korea Research Institute of Chemical Technology, P.O. Box 107, Yuseong, Daejeon 305-600, Republic of Korea
¹Devision of Materials and Engineering, Korea University, Seoul 136-713, Republic of Korea

E-mail:

We have synthesized Eu3+-doped YVO4 phosphors by using a hydrothermal method and investigated their luminescent properties. Aqueous solutions of Y2O3, V2O5, Eu2O3, and nitric acid with various pH values were used as the precursors. The crystallinity, surface condition, and emission characteristics were examined using XRD, FT-IR, and photo-excited spectrometer. Eu3+ incorporation followed by the efficient red emission strongly depends on the acidity of solution media. The emission intensity becomes stronger as the pH values increase to 7 and then gradually decreases. This phenomenon might be related to the hydroxyl quenching effect, which is induced by surface bound OH- groups.

Keywords:Yttrium vanadates;Photoluminescence;Hydrothermal synthesis

[References]

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[1] Maunders EA, Deshaser EG, J. Opt. Soc. Am. A, 61, 68 (1971)

[2] Fields RA, Birnbaum M, Fincher CL, Appl. Phys. Lett., 51, 1885 (1987)

[3] Levine AK, Palilla FC, Appl. Phys. Lett., 5, 118 (1964)

[4] Sohn KS, Zeon W, Chang H, Lee SK, Park HD, Chem. Mater., 14, 2140 (2002)

[5] Chen LM, Liu YN, Huang KL, Mater. Res. Bull., 41(1), 158 (2006)

[6] Yu M, Lin J, Wang Z, Fu J, Wang S, Zhang HJ, Han YC, Chem. Mater., 14, 2224 (2002)

[7] Zhang H, Fu X, Niu S, Sun G, Xin Q, J. Solid State Chem., 177, 2649 (2004)

[8] Wang YH, Zuo YY, Gao H, Mater. Res. Bull., 41(11), 2147 (2006)

[9] Moon YT, Choi JY, Kim DK, Kim JH, J. Kor. Ceram. Soc., 10(1), 76 (1995)

[10] Asakura R, Isobe T, Kuma H, Katano J, J. Phys. Chem., 109, 22126 (2005)

[11] Ropp RC, Carroll B, J. Inorg. Nucl. Chem., 39, 1303 (1997)

[12] Judd BR, Phys. Rev., 127, 750 (1962)

[13] Ofelt GS, J. Chem. Phys., 37, 511 (1962)

[14] Blasse G, Grabmaier BC, Luminescent Materials, Springer-Verlag, New York, 1994, p.41-44 (1994)

[15] Huignard A, Gacoin T, Boilot JP, Chem. Mater., 12, 1090 (2000)

[16] Wang YH, Kyota U, Takizawa H, J. Electrochem., 148, 430 (2001)

[17] Sharma PK, Jilavib MH, Varadana VK, Schmidtb H, J. Phys. Chem. Solids, 63, 171 (2002)