The Influence of Hydrothermal Duration on Structures and Optical Properties of ZnO Nanoparticles

Akhiruddin^1, , Sugianto¹ and Irmansyah¹

¹Department of Physics, Bogor Agricultural University, Darmaga, Bogor, Indonesia

Cite this paper:
Akhiruddin, Sugianto and Irmansyah. The Influence of Hydrothermal Duration on Structures and Optical Properties of ZnO Nanoparticles. Journal of Materials Physics and Chemistry. 2014; 2(2):34-37. doi: 10.12691/jmpc-2-2-4

Abstract

ZnO nanoparticles were synthesized by hydrothermal method using ethylene glycol as a stabilizer and as well as a template. This study was aimed to examine the influence of hydrothermal duration (3, 6, and 12 hours) on the structures and optical properties of ZnO nanoparticles. X-ray diffraction results show that all peaks appear in the diffraction pattern indicate the hexagonal wurtzite structure of ZnO. The lattice parameters found just slightly varied with addition of hydrothermal duration. It is found that the particles size decreases whereas the average crystals size increase with hydrothermal duration. The average crystal size found increase with addition of hydrothermal duration. On the other hand, the particle grains were spread evenly distributed with decreasing size with hydrothermal duration increase, as indicated in the SEM images. Optical properties were investigated based on the optical transmission of the ZnO films. It is known that the films strongly absorb the visible region, whereas the absorption edge in the UV region. Bandgap energy of the films found increase with hydrothermal duration, that were 3.18 eV, 3.21 eV and 3.24 eV for 3 hours, 6 hours and 12 hours, respectively.

Keywords:
ZnO nanoparticles hydrothermal process duration effect structues optical properties

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References:

[1]	Takenaka, K., Okumura, Y. and Setsuhara, Y., “Low-Temperature Deposition of Zinc Oxide Film by Plasma-Assisted Mist Chemical Vapor Deposition,” Jpn. J. Appl. Phys., 51(8S1)).567-0047. August. 2012.
[2]	Wang, Z.J. and Tanaka, I., “Conduction-Band Structures of Wurtzite ZnO Solid Solutions by First Principles Calculations,” Mater. Transac., 50(5). 1067-1070. March 2009.
[3]	Zhang, Q., Dandeneau, C.S., Zhou, X. and G. Cao, “ZnO Nanostructures for Dye-Sensitized Solar Cells,” Adv. Mater., 21(41). 4087-4108. Nov. 2009
[4]	Chou, T.P., Zhang, Q., Fryxell, G.E. and G. Cao, “Hierarchically Structured ZnO Film for Dye-Sensitized Solar Cells with Enhanced Energy Conversion Efficiency,” Adv. Mater. 19(18). 2588-2582. Sept. 2007.
[5]	J. Han, J., Fan, F., Xu, C., Lin, S., Wei, M., Duan, X. and Wang, Z.L., “ZnO nanotube-based dye-sensitized solar cell and its application in self-powered devices,” Nanotechn. 21(40). 405203. Oct. 2010.
[6]	Hung, Ng.L., Ahn, E., Jung, H., Kim, H. and D. Kim, “Synthesis and Gas Sensing Properties of ZnO Nanostructures,” J. Kor. Phys. Soc. 57(6). 1784-1788. Dec. 2010.
[7]	Gimenez, A.J., Yáñez-Limón, J.M. and Seminario, J.M., “ZnO−Paper Based Photoconductive UV Sensor,” J. Phys. Chem. C. 115(1). 282-287. Jan. 2011.
[8]	Lei, A., Qua, B., Zhou, W., Wang, Y., Zhang, Q. and Zou, B., “Facile synthesis and enhanced photocatalytic activity of hierarchical porous ZnO microspheres,” Mater. Lett., 66. 72-75. Jan. 2012.
[9]	Xiaming, Z., Huizhen, W., Shuangjiang, W., Yingying, Z., Chunfeng, C., Jianxiao, S., Zijian, Y., Xiaoyang, D. and Shurong, D., “Optical and electrical properties of N-doped ZnO and fabrication of thin-film transistors,” J. Semicond., 30(3). 033001-1 - 033001-4. March 2009.
[10]	Keum, M-J., Cho, B-J., Choi, H-W., Parka, S-J. and K-H. Kim, “Preparation of Al doped ZnO thin films as a function of substrate temperature by a facing target sputtering system,” J. Ceram. Process. Res. 8(1). 56-58. Jan. 2007.
[11]	Jha, S.K., Kutsay, O., Bello, I. and Lee, S.T., “ZnO nanorod based low turn-on voltage LEDs with wide electroluminescence spectra,” J. Luminesc. 133. 222-225. Jan. 2013.
[12]	Lee, C.Y., Lin, M.Y., Wu, H.W., Wang, J.Y., Chou, Y., Su, W.F., Chen, Y.F. and Lin, C.F., “Flexible ZnO transparent thin-film transistors by a solution-based process at various solution concentrations,” Semicond. Sci. Technol. 25(10), 105008. Oct. 2010.
[13]	Karami, H. and Elham, F., “Synthesis and Characterization of ZnO Nanorods Based on a New Gel Pyrolysis Method,” J. Nanomat., (10). 1155. 2011.
[14]	Raoufi, D. and Raoufi, T., “The effect of heat treatment on the physical properties of sol–gel derived ZnO thin films,” Appl. Surf. Sci., 255. 5812-5817. Jan. 2009.
[15]	Aneesh, P.M., Vanaja, K.A. and Jayaraj,M.K., "Synthesis of ZnO nanoparticles by hydrothermal method", Proc. SPIE 6639, Nanophotonic Materials IV, 66390J. (September 17, 2007).
[16]	Meen, T.H., Water, W., Chen, Y.S., Chen, W.R., Ji, L.W. and Huang, C.J., “Growth Of ZnO Nanorods by Hydrothermal Method Under Different Temperatures,” [The research is supported by National Science Council], 150-028. 2007.
[17]	Kumar, N.S., Bangera, K.V. and Shivakumar, G.K., “Effect of annealing on the properties of zinc oxide nanofiber thin films grown by spray pyrolysis technique,” Appl. Nanosci., 4. 209-216. Jan. 2014.
[18]	Kandjani, A.E., Tabriz, M.F. and Pourabbas, B., “Sonochemical synthesis of ZnO nanoparticles: The effect of temperature and sonication power,” Mater. Res. Bull. 43(3). 645-654. March 2008
[19]	Ko, Y.H., Kim, M.S. and Yu, J.S., “Structural and optical properties of ZnO nanorods by electrochemical growth using multi-walled carbon nanotube-composed seed layers,” Nanoscale Res. Lett., 7(1). 13 (2012).
[20]	Hara, Y., Brownson, J.R.S. and Anderson, M.A., “Fabrication of Thin-Films Composed of ZnO Nanorods Using Electrophoretic Deposition,” Int. J. Appl. Ceram. Technol., 9 [1]. 115-123. Jan./Feb. 2012.
[21]	Khallaf, H., Chai, G., Lupan, O., Heinrich, H., Park, S., Schulte, A.and Chow, L., “Investigation of chemical bath deposition of ZnO thin films using six different complexing agents,” J. Phys. D: Appl. Phys. 42(13). 135304. July 2009.
[22]	Shabannia, R. and Abu-Hassan, H., “Vertically aligned ZnO nanorods synthesized using chemical bath deposition method on seed-layer ZnO/polyethylene naphthalate (PEN) substrates,” Mater. Lett. 90. 156-158. Jan. 2013.
[23]	Ibrahem, M.A., Wei, H-Y., Tsai, M-H., Ho, K-C., Shyue, J-J. and Chu, C.W., Solution-processed zinc oxide nanoparticles as interlayer materials for inverted organic solar cells,” Solar Energy Materials & Solar Cells, 108. 156-163. Jan. 2013.
[24]	Wu, Y.L., Tok, A.I.Y., Boey, F.Y.C., Zen, X.T.X. and Zhang, X.H., “Surface modification of ZnO nanocrystals,” App. Surface Sci., 253(12). 5473-5479. April 2007.
[25]	Hamedani, N.F. and Farzaneh, F.,”Synthesis of ZnO Nanocrystals with Hexagonal (Wurtzite) Structure in Water Using Microwave,” J. Sci., 17(3). 231-234. 2006
[26]	Xing, J.Y., Xi, Z.H., Xue, Q., Zhang, X.D. and J.H. Song, “Optical properties of the ZnO nanotubes synthesized via vapor phase growth,” Appl. Phys. Lett., 83(9). 1689-1691. Sep 2003.