Fluorescence and Spectroscopic Characterization of Multiferroic Quantum Dots of La:BiFeO3

详细信息    查看全文

• 作者：M. A. Ahmed ; N. G. Imam ; S. I. El-Dek…
• 关键词：La ; BiFeO3 quantum dots ; XRD ; HRTEM ; Fluorescence ; Raman scattering ; FT ; IR
• 刊名：Journal of Superconductivity Incorporating Novel Magnetism
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：28
• 期：8
• 页码：2417-2424
• 全文大小：1,565 KB
• 参考文献：1.Xue, X., Tan, G., Liu, W., Hao, H.: J. Alloys Comp. 604, 57-5 (2014)View Article
  2.Mukherjee, A., Hossain, Sk. M., Pal, M., Basu, S.: Appl. Nanosci. 2, 305-10 (2012). doi:10.-007/?s13204-012-0114-8 ADS View Article
  3.Imam, N.G., Mohamed, M.B.: Superlattices and Microstructures 73, 203-13 (2014)ADS View Article
  4.Ahmed, M.A., Dhahri, E., El-Dek, S.I., Ayoub, M.S.: Solid State Sci. 20, 23-8 (2013). doi:10.-016/?j.?solidstatescienc?es.-013.-2.-23 ADS View Article
  5.Ahmed, M.A., Mansour, S.F., El-Dek, S.I., Abu-Abdeen, M.: Mater. Res. Bull. 49, 352-59 (2014). doi:10.-016/?j.?materresbull.-013.-9.-11 View Article
  6.Takahashi, K., Kida, N., Tonouchi, M.: Phys. Rev. Lett. 96, 117402 (2006)ADS View Article
  7.Chauhan, S., Arora, M., Sati, P.C., Chhoker, S., Katyal, S.C., Kumar, M.: Ceram. Int. 39, 6399-405 (2013)View Article
  8.Koferstein, R.: J. Alloys Compd. 590, 324-30 (2014)View Article
  9.Sharma, H.B., Boinis Singh, Ng., Nomita Devi, K., Lee, J.H., Bobby Singh, S.: J. Alloys Compd. 583, 106-10 (2014)View Article
  10.Gao, F., Chen, X. Y., Yin, K. B., Dong, S., Ren, Z. F., Yuan, F., Yu, T., Zou, Z. G., Liu, J. M.: Adv. Mater. 19, 2889-892 (2007)View Article
  11.Lotey, G. S., Verma, N.K.: Mater. Sci. Semicond. Process. 21, 206-11 (2014)View Article
  12.Lotey, G.S., Verma, N.K.: Chem. Phys. Lett. 574, 71-7 (2013)ADS View Article
  13.Singh, V., Sharma, S., Jha, P.K., Kumar, M., Dwivedi, R.K.: Ceram. Int. 40, 1971-977 (2014)View Article
  14.Lakowicz, J.R.: Principles of fluorescence spectroscopy, Third Edition. Springer Science, Printed in Singapore (KYO) (2006)
  15.Farhadi, S., Momeni, Z., Taherimehr, M.: J. Alloys Compd. 471, L5—L8 (2009)View Article
  16.Selbach, S.M., Einarsrud, M.A., Grande, T.: Chem. Mater. 21, 169-73 (2009)View Article
  17.Abazari, R., Sanati, S.: Superlattice. Microst. 64, 148-57 (2013)ADS View Article
  18.Chen, P., Xu, X., Koenigsmann, C., Santulli, A.C., Wong, S.S., Musfeldt, J.L. Nano Lett. 10, 4526-532 (2010)ADS View Article
  19.Goo, F., Yuan, Y., Wang, K.F., Chen, X.Y., Chen, F., Liu, J.M., Reu, Z.F.: Appl. Phys. Lett. 89, 1025006 (2006)
  20.Kim, J.W., Raghavan, C.M., Kim, Y.-J., Oak, J.J.: Ceram. Int. 39, S189 (2013)View Article
  21.Ahmed, M.A., Seoudi, R., Eldek, S.I.: J. Mol. Struct. 754(1-3), 41-4 (2005)ADS View Article
  22.Dobal, P.S., Katiyar, R.S.: J. Raman Spectrosc. 33, 405 (2002)ADS View Article
  23.Ramirez, M.O., Krishnamurthi, M., Denev, S., Kumar, A., Yang, S.Y., Chu, Y.H., Saiz, E., Seidel, J., Pyatakov, A.P., Bush, A., Viehland, D., Orenstein, J., Ramesh, R., Gopalan, V.: Appl. Phys. Lett. 92, 022511 (2008)ADS View Article
  24.Singh, M.K., Ryu, S., Jang, H.M.: Phys. Rev. B 72, 132101 (2005)ADS View Article
  25.Mishra, R.K., Pradhan, D.K., Choudhary, R.N.P., Banerjee, A.: J. Phys. Condens Matter. 20, 045218-45223 (2008)ADS View Article
  26.Zalesskii, A.V., Frolov, A.A., Khimich, T.A., Bush, A.A: Phys. Solid State 45, 134-38 (2003)ADS View Article
  
• 作者单位：M. A. Ahmed (1)
  N. G. Imam (2)
  S. I. El-Dek (3)
  Safaa K. El-Mahy (4)
  
  1. Materials Science Lab. (1), Physics Department, Faculty of Science, Cairo University, Giza, Egypt
  2. Experimental Physics Department, Nuclear Research Center Atomic Energy Authority, Cairo, Egypt
  3. Materials Science and Nanotechnology Department, Faculty of Post Graduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt
  4. Department of Physics, Faculty of Girls for Arts, Science and Education, Ain Shams University, Cairo, Egypt
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Superconductivity, Superfluidity and Quantum Fluids
  Magnetism and Magnetic Materials
  Condensed Matter
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1557-1947

文摘

Multiferroic quantum dots of Bi1?xLaxFeO3; 0.05 ?x ?0.35 (La:BiFeO3) prepared by double sintering ceramic technique were examined by X-ray diffraction (XRD), fluorescence, micro-Raman, and Fourier transform infrared (FT-IR) spectroscopy. La:BiFeO 3 were crystallized in a single-phase rhombohedral–hexagonal structure with space group R3c. The quantum dot size appeared as a broadening in the XRD diffraction peaks and assured from TEM micrograph. The fluorescence studies show the possible existence of an energy level above valence band maxima. The molecular signature of the samples was confirmed by FT-IR studies. Raman spectroscopy was used as a complementary spectroscopic technique hand-in-hand with FT-IR. Raman analysis reveals that lanthanum ions substitute bismuth in the rhombohedraly distorted hexagonal lattice. The results of Raman spectroscopy show good agreement with XRD and FT-IR results. This article offers such quantum dots (QDs) for photocatalytic degradation and opens a new platform in the field of photocatalysis.