Investigations on structural and optical properties of Cu doped ZnO

Arindam Ghosh, Navnita Kumari, Ayon Bhattacharjee

Abstract


Pure and Cu-doped zinc oxide nanoparticles were prepared through a chemical route. The dopant concentration [Cu/Zn in atomic percentage (wt%)] is varied from 0 to 3 wt %. Structural characterization of the samples performed with XRD confirmed that all the nanoparticles are of zinc oxide having polycrystalline nature. Morphological studies were conducted using SEM to confirm the grain size and texture. The UV-Vis studies showed absorbance peaks in the 200 nm - 800 nm region. It is found that the absorbance does not significantly change.  The above fact is further confirmed from the band gap calculations using the reflectance graphs. When analysed in terms of Burstein-Moss shift, an increase of bandgap from 3.42 to 3.54 eV with increasing Cu concentration is observed. In the PL studies a red-shift is observed with increasing dopant concentration.


Keywords


ZnO; Cu-doping; structural; optical properties

References


A. Dev, S. Chaudhuri, B.N. Dev, Bull. Mater. Sci. 31 (2008) 551-559.

F.A. Mahmoud, G. Kiriakidis, J. Ovonic Res. 5 (2009) 15-20.

N. Kakati, S.H. Jee, S.H. Kim, J.Y. Oh, Y.S. Yoon, Thin Solid Films 519 (2010) 494-498.

Ch. Y. Wang, V. Cimalla, Th. Kups, C. Röhlig, H. Romanus, V. Lebedev, J. Pezoldt, Th. Stauden, O. Ambacher, J. App. Physics 102,044310; doi:10.1063/1.2770831(2007).

A. Murali, A. Barve, V. J. Leppert, S. H. Risbud, I. M. Kennedy, H. W. H. Lee, Nano Letters 1 (2001) 287-289.

G. Fan, Y. Wang, M. Hu, Z. Luo, G. Li., Meas. Sci. Technol, 22 045203; doi:10.1088/0957-0233/22/4/045203 (2011).

N. Van Hieu, N. Anh Phuc Duc, T. Trung, M. A. Tuan, N. D. Chien, Sensors and Actuators B 144 (2010) 450-456.

A. Azam, A. S. Ahmed, M. S. Ansari, M. Shafeeq, A. H. Naqvi, J. Alloys and Compounds 506 (2010) 237-242.

T. N. Soitah, Y. Chunhui, S. Liang, Sci. Adv. Mater. 2 (2010) 534-538.

L. Sanches, J. Peral, X. Domenech, Electrochima Acta. 41 (1996) 1981-1985.

W.J. Huang, G.C. Fang, C.C. Wang, Colloids and Surfaces A: Physicochem. Eng. Aspects 260 (2005) 45-51.

R. Annapoorani, M.R. Dhanjeyan, R. Renganathan, A: Chem., 111 (1997) 215-221.

K. Matsubara, P. Fons, K. Iwata, A. Yamada, K. Sakurai, H. Tampo, S. Niki, Thin Solid Films, 431 (2003) 369-372.

Q. Zhang, C. Xie, S. Zhang, A. Wang, B. Zhu, L. Wang, Z. Yang, Sens. Actuators B 110 (2005) 370-376.

H.M. Lin, S.J. Tzeng, P.J. Hsiau, W.L. Tsia, Nano Struct. Mater. 10 (1998) 465-477.

J. Zang, W. Yu, L. Zang, Phys. Lett. A. 299 (2002) 276-281.

S.H. Keshmiri, M. Rezaee Rokn-Abadi, Thin Solid Films 382 (2001) 230-234.

G. Singh, S.B. Shrivastava, D. Jain, S. Pandya, T. Shripathi, V. Ganesan, Bull. Mater. Sci. 33 (2010) 581-587.

Y. Nakata, T. Okada, M. Maeda, Appl. Surface. Sci. 197 (2002) 368-370.

Y.Z. Yoo, Z.W. Jin, T. Chikyow, T. Fukumura, M. Kawasaki, H. Koinuma, Appl. Phys. Lett. 81 (2002) 3798-3801.

B.J. Chen, X.W. Sun, C.X. Xu, B.K. Tay, Phys. E. 21 (2004) 103-107.

Y.J. Li, R. Duan, P.B. Shi, G.G. Qin, J., Cryst. Growth 260 (2004) 309-315.

W.L. Dai, Y. Cao, L.P. Ren, X.L. Yang, J.H. Xu, H.X. Li, H.Y. He, K.N. Fan, J. Catal. 229 (2004) 80-91.

X.S. Wang, Z.C. Wu, J.F. Webb, Z.G. Liu., Appl. Phys. A: Mater. Sci. & Process. 77 (2003) 561-565.

L.M. Fang, X.T. Zu, Z.J. Li, S. Zhu, C.M. Liu, W.L. Zhou, L.M. Wang, J. Alloys and Compounds 454 (2008) 261-267.

H. Abdullah, M.N. Norazia, S.Shaari, M.Z. Nuawi, N.S. Mohamed Dan, Am. J. Eng. Applied Sci. 3 (2010) 171-179.

B.D. Cullity, Elements of X-ray Diffractions, Addison-Wesley, Reading, MA 1978.

G. Srinivasan, R.T.R. Kumar, J. Kumar, J. Sol–Gel Sci. Technol. 43 (2007) 171-177.

S. Singhal, J. Kaur. T. Namgyal, R. Sharma, Physica B 407 (2012) 1223-1226.

I. Khan, S. Khan, R. Nongjai, H. Ahmed, W. Khan, Optical Materials (2013) (in press).

V. Biju, S. Neena, V. Vrinda, S. L. Salini, J. Mater. Sci. 43 (2008) 1172-1179.

J.F. Wang, W.B. Su, H.C. Chen, W.X. Wang, G.Z. Zang, J. Am. Ceram. Soc. 88 (2005) 331-334.

A. Agrawal, T. A. Dar, P. Sen, J. Nano-and Electronic Physics 5 (2013) 2025-2028.

S. Tewari, A. Bhattacharjee, PRAMANA, Indian Academy of Sciences 76 (2011) 153-163.

D. Bao, X. Yao, N. Wakiya, K. Shinozaki, N. Mizutani, Applied Physics Letter 79 (2001) 3767-3772.

P. Chetri, A. Choudhury, Physica E 47 (2013) 257-263.

A. Alaeddine, I. Rachidi, F. Bahsoun, Y. Mohanna, O. Bazzi, F. El Haj Hassan, J. Applied Sciences 9 (2009) 1588-1592.

G. Singh, S. B. Shrivastava, D. Jain, S.Wati Pandya, T. Shripathi, V. Ganesan,Bull. Mater. Sci. 33 (2010) 581-587.

E. Burstein: Phys. Rev. 93, 632, 1954.


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