Diallo P T, Boutinaud P, Mahiou R, et al. Red luminescence in Pr3+-doped calcium titanates

. Phys. Stat. Sol. (a), 1997, 160 (1):255-263.

Lian S X, Lin J H, Su M Z. Synthesis and luminescent properties of Ca1-xZnxTiO3 ∶ Pr3+ , R+(R+=Li+ , Na+ , K+ , Rb+ , Cs+ ,Ag+ )

. J. Chin. Soc. Rare Earths (中国稀土学报), 2001, 19 (6):602-605 (in Chinese).

Yamamotoa H, Okamotob S, Kobayashib H. Luminescence of rare-earth ions in perovskite type oxides:from basic research to applications

. J. Lumin., 2002, 100 (1-4):325-332.

Tang W J, Chen D H. Photoluminescent properties of (Ca,Zn)TiO3 ∶ Pr,B particles synthesized by the peroxide-based route method

. J. Am. Ceram. Soc., 2007, 90 (10):3156-3159.

Lian S X, Zuo C G, Yin D L, et al. Preparation and characterization of red luminescent Ca0.8Zn0.2TiO3 ∶ Pr3+ , Na+ nanophosphor

. J. Rare Earths, 2006, 24 (2):29-33.

Zhang X M, Zhang J H, Zhang X, et al. Size manipulated photoluminescence and phosphorescence in CaTiO3 ∶ Pr3+ nanoparticles

. J. Phys. Chem. C, 2007, 111 (49):18044-18048.

Zhou X M, Li B W, Zeng H H, et al. Improvement of the long lasting phosphorescence materials (Ca,Zn) TiO3 ∶ Pr by surface treatment

. J. Chin. Soc. Rare Earths (中国稀土学报), 2008, 29 (1):28-31 (in Chinese).

Lian S X, Li X Y, Yin D L, et al. Effects of solid solution structures on luminescence of Ca2- xSrxZn4Ti15O36 ∶ Pr3+

. Chin. J. Inorganic. Chem.(无机化学学报), 2006, 22 (2):336-340 (in Chinese).

Yang Z P, Zhu S C, Guo Zhi, et al. Study on two kinds of electron trapped of red long-afterglow phosphors CaTiO3 ∶ Pr3+

. Journal of Optoelectronics·Laser (光电子·激光), 2004, 15 (3):332-336 (in Chinese).

Zhang W P, Yin M. Preparration and properties of nanometric scale luminescent materials doped by rare earth

. Chin. J. Lumin. (发光学报), 2000, 21 (4):314-319 (in Chinese).

Qi Y, Lian S X, Yu L P, et al. Synthesis and persistent properties of phosphor Ca2Zn4Ti16O38 ∶ Pr3+ , Na+

. Chin. J. Inorganic. Chem.(无机化学学报), 2009, 25 (2):218-222 (in Chinese).

Komarneni S. Sol-gel Synthesis and Processing

. Westerville, Ohio: American Ceramic Society, 1998, 7-8.

Ma Y L, Wang Y. Study on the sol-gel transition process of tetrabutyltitanate-barium acetate acetic acid system

. Chin. J. Appl. Chem. (应用化学), 2002, 19 (5):450-454 (in Chinese).

Wang R B, Dai S Y, Wang K J. The influence of pH to prepare TiO2 by sol-gel and the characteristics

. Chin. J. Func. Mater.(功能材料), 2002, 3 (33):296-302 (in Chinese).

Hui L, Tang Z L, Luo S H, et al. Influences of precursor pH value on the sol-gel prepared LiFePO4

. Chin. Rare Metal Mate. Eng.(稀有金属材料与工程), 2007, 36 (1):121-123 (in Chinese).

Peng T Y, Liu X, Dai K, et al. Effect of acidity on the glycine-nitrate combustion synthesis of nanocrystalline alumina powder

. Mater. Res. Bull, 2006, 41 (9):1638-1645.

Pathak L C, Singh T B, Das S, et al. Effect of pH on the combustion synthesis of nano-crystalline alumina powder

. J. Mater. Lett., 2002, 57 (2):380-385.

Wang C N, Wang M Y, Zhang W P, et al. Influence of acidity on properties of combustion derived Y2O3 ∶ Eu3+ phosphors

. J. At. Mo. Phys., 2008, 25 (4):760-766.

Dillo P T, Jeanlouis K, Boutinaud P, et al. Improvement of the optical performances of Pr3+ in CaTiO3

. J. Alloys Compd., 2001, 323-324 :218-222.

Shen L J, Zhang Z Q, Li H, et al. Efffect of Zn,Cd on the luminescent properties of CaTiO3 ∶ Pr3+

. Chin. J. Lumin.(发光学报), 2007, 28 (1):74-78 (in Chinese).

Fu Z L, Zhou S H, Pan T Q, et al. Preparation and luminescent properties of cubic Eu3+ ∶ Y2O3 nanocrystals and comparison to bulk Eu3+ ∶ Y2O3

. J. Lumin., 2007, 124 (2):216-513.

Zhang J H, Jia M L, Lu S Z, et al. Study on UV excitation properties of Eu3+at S6 site in bulk and nanocrystalline cubic Y2O3

. J. Rare Earths, 2004, 22 (1):45-48.

Yang Z, Lin J H, Su M Z. LnBaB9O16 ∶ Pr3+ (Ln=La, Y) of Pr3+ in the two-photon emission

. Sci. China, Ser. B (中国科学 B辑), 2001, 31 (1):37-41 (in Chinese).

Kyomen T, Sakamoto R, Sakamoto N, et al. Photoluminescence properties of Pr-doped (Ca,Sr,Ba)TiO3

. J. Chem. Mater, 2005, 17 (12):3200-3204.