Structural and morphological characterization of sol-gel ZnO:Ga films: Effect of annealing temperatures

Gallium-doped zinc oxide; Microstructure; Morphology; Optical properties; Sol-gel; Thin films; Atomic force microscopy; Energy gap; Fourier transform infrared spectroscopy; Gallium; Oxide films; Semiconductor doping; Sol-gel process; Sol-gels; Surface roughness; Vibration analysis; X ray diffraction; Zinc; Zinc oxide; Annealing temperatures; Effect of annealing; Gallium doped zinc oxides; Morphological characterization; Spin-coating method; Structural and optical properties; Vibrational properties; Visible spectral range; Optical films

Abstract :

[en] Sol-gel technology has been successfully applied for obtaining ZnO:Ga films by spin coating method. Their structural and optical properties are studied depending on the doping contents and on the annealing temperatures varying from 300 to 600 °C. The Ga doping has been achieved by dissolving 1, 2 and 3 wt% Ga(NO3) into Zn sol solution. The structural analysis performed by X-Ray diffraction (XRD) shows a deterioration of the film crystallization with gallium incorporation. The XRD study reveals no impurity peaks associated to metallic gallium or gallium oxide phases. Vibrational properties have been characterized by Fourier Transform Infrared (FTIR) spectroscopy. FTIR analysis gives no certain evidence for presence of Ga oxide phases, but the absorption bands are clearly affected by Ga additive and there can be possible overlapping of Zn–O and Ga–O vibrations. The sol-gel ZnO:Ga films possess higher transparency in the visible spectral range compared to zinc oxide films. The optical band gaps of ZnO:Ga films are found to be widening due to gallium doping. The film morphology is investigated by Atomic force microscopy and it has been found that Ga doping in ZnO affects significantly the film morphology. The surface roughness of ZnO:Ga films is smaller compared to ZnO. © 2017 Elsevier B.V.

Disciplines :

Chemistry

Author, co-author :

Ivanova, T.; Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko chaussee 72, Sofia, Bulgaria

Harizanova, A.; Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko chaussee 72, Sofia, Bulgaria

Koutzarova, T.; Institute of Electronics, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, Sofia, Bulgaria

Vertruyen, Bénédicte ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale

Stefanov, B.; Department of Engineering Sciences, The Ångström Laboratory, Uppsala University, P.O. Box 534, Uppsala, Sweden

Language :

English

Title :

Structural and morphological characterization of sol-gel ZnO:Ga films: Effect of annealing temperatures

Publication date :

2018

Journal title :

Thin Solid Films

ISSN :

0040-6090

Publisher :

Elsevier B.V.

Volume :

646

Pages :

132-142

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 21 June 2018

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Bibliography

Turgut, G., Duman, S., Keskenler, E.F., The influence of Y contribution on crystallographic, topographic and optical properties of ZnO: a heterojunction diode application. Superlat. Microstr. 86 (2015), 363–371.
Vorobyeva, N.A., Rumyantseva, M.N., Vasiliev, R.B., Kozlovskiy, V.F., Soshnikova, Yu.M., Filatova, D.G., Zaytsev, V.B., Zaytseva, A.V., Gaskov, A.M., Doping effects on electrical and optical properties of spin-coated ZnO thin films. Vacuum 114 (2015), 198–204.
Chen, Sh., Warwick, M.E.A., Binions, R., Effects of film thickness and thermal treatment on the structural and opto-electronic properties of Ga-doped ZnO films deposited by sol–gel method. Sol. Energy Mater. Sol. Cells 137 (2015), 202–209.
Stefan, M., Ghica, D., Nistor, S.V., Maraloiu, A.V., Plugaru, R., Mn2 + ions distribution in doped sol–gel deposited ZnO films. Appl. Surf. Sci. 396 (2017), 1880–1889.
Jun, M.-C., Park, S.-U., Koh, J.-H., Comparative studies of Al-doped ZnO and Ga-doped ZnO transparent conducting oxide thin films. Nanoscale Res. Lett., 7, 2012, 639.
Kahraman, S., Çakmak, H.M., Çetinkaya, S., Bayansal, F., Çetinkara, H.A., Güder, H.S., Characteristics of ZnO thin films doped by various elements. J. Crystal Growth 363 (2013), 86–92.
El Hichou, A., Diliberto, S., Stein, N., Influence of the aluminum incorporation on the properties of electrodeposited ZnO thin films. Surf. Coatings Techn. 270 (2015), 236–242.
Nguyen, N.G., Ho, V.T.Th., Hong, L.–Sh., Low-resistivity, high-transmittance Ga:ZnO films prepared through metalorganic chemical vapor deposition using an inexpensive solution of diethylzinc in n-hexane as the Zn precursor. Appl. Phys. Lett., 102, 2013, 181912.
Gorrie, Ch.W., Sigdel, A.K., Berry, J.J., Reese, B.J., van Hest, M.F.A.M., Holloway, P.H., Ginley, D.S., Perkins, J.D., Effect of deposition distance and temperature on electrical, optical and structural properties of radio-frequency magnetron-sputtered gallium-doped zinc oxide. Thin Solid Films 519 (2010), 190–196.
Jothi Ramalingam, R., Chung, G.S., Polymer assisted Ga doped ZnO nanodisk/nanorod structures prepared by a low temperature one-pot hydrothermal method. Mater. Lett. 68 (2012), 247–250.
Zhao, T., Fu, Y., Zhao, Y., Xing, L., Xue, X., Ga-doped ZnO nanowire nanogenerator as self-powered/active humidity sensor with high sensitivity and fast response. J. Alloys Comp. 648 (2015), 571–576.
Dhahri, R., Hjiri, M., Mir, L.El., Bonavita, A., Iannazzo, D., Leonardi, S.G., Neri, G., Appl. Surf. Sci. 355 (2015), 1321–1326.
Babu, E.S., Hong, S.–.K., Effect of indium concentration on morphology of ZnO nanostructures grown by using CVD method and their application for H2 gas sensing. Superlatt. Microstr. 82 (2015), 349–356.
Suja, M., Bashar, S.B., Morshed, M.M., Liu, J., Realization of Cu-doped p-type ZnO thin films by molecular beam epitaxy. ACS Appl. Mater. Interfaces 7 (2015), 8894–8899.
Wang, D., Fang, Q., Yang, J., The optical and electrical properties of Al and (Al, Cu) doped ZnO film. Adv. Mater. Res. 1120–1121 (2015), 429–434.
Singh, C.C., Patel, T.A., Panda, E., Relation between surface and bulk electronic properties of Al doped ZnO films deposited at varying substrate temperature by radio frequency magnetron sputtering. J. Appl. Phys., 117, 2015, 245312.
Aydin, H., El-Nasser, H.M., Aydin, C., Al-Ghamdi, A.A., Yakuphanoglu, F., Synthesis and characterization of nanostructured undoped and Sn-doped ZnO thin films via sol–gel approach. Appl. Surf. Sci. 350 (2015), 109–114.
Wang, L.W., Wu, F., Tian, D.X., Li, W.J., Fang, L., Kong, C.Y., Zhou, M., Effects of Na content on structural and optical properties of Na-doped ZnO thin films prepared by sol–gel method. J. Alloys Comp. 623 (2015), 367–373.
Ivanova, T., Harizanova, A., Koutzarova, T., Vetruyen, B., Study of ZnO sol–gel films: effect of annealing. Mater. Lett. 64 (2010), 1147–1149.
Pineda-Hernández, G., Escobedo-Morales, A., Pal, U., Chigo-Anota, E., Morphology evolution of hydrothermally grown ZnO nanostructures on gallium doping and their defect structures. Mater. Chem. Phys. 135 (2012), 810–817.
I. Winer, G. E. Shter, M. Mann-Lahav, G. S. Grader, Effect of solvents and stabilizers on sol-gel deposition of Ga-doped zinc oxide TCO films, J. Mater. Res. 26 (10) 1309-1315.
Huang, M.-C., Lin, J.-C., Cheng, Sh.-H., Weng, W.-H., Influence of Ga dopant on photoelectrochemical characteristic of Ga-doped ZnO thin films deposited by sol–gel spin-coating technique. Surf. Interface Anal. 49 (2017), 434–440.
Hjiri, M., Dhahri, R., El Mira, L., Bonavita, A., Donato, N., Leonardi, S.G., Neri, G., CO sensing properties of Ga-doped ZnO prepared by sol–gel route. J. Alloys Comp. 634 (2015), 187–192.
Shinde, S.S., Shinde, P.S., Oh, Y.W., Haranath, D., Bhosale, C.H., Rajpure, K.Y., Structural, optoelectronic, luminescence and thermal properties of Ga-doped zinc oxide thin films. Appl. Surf. Sci. 258 (2012), 9969–9976.
Bindu, P., Thomas, S., Estimation of lattice strain in ZnO nanoparticles: X-ray peak profile analysis. J. Theor. Appl. Phys 8:4 (2014), 123–134.
Yilmaz, M., Investigation of characteristics of ZnO:Ga nanocrystalline thin films with varying dopant content. Mater. Sci. Semicond. Processing 40 (2015), 99–106.
Rusu, D.I., Rusu, G.G., Luca, D., Structural characteristics and optical properties of thermally oxidized zinc films. Acta Phys. Pol. A 119:6 (2011), 850–856.
Pearton, S.J., Norton, D.P., Ip, K., Heo, Y.W., Steiner, T., Recent advances in processing of ZnO. J. Vac. Sci. Technol. B 22:3 (2004), 932–948.
Ilican, S., Caglar, Y., Caglar, M., Preparation and characterization of ZnO thin films deposited by sol-gel spin coating method. J. Optoelectr. Adv. Mater. 10 (2008), 2578–2583.
Aryanto, D., Jannah, W.N., Masturi, T. Sudiro, Wismogroho, A.S., Sebayang, P., Sugianto, P. Marwoto, Preparation and structural characterization of ZnO thin films by sol-gel method. IOP Conf. Series: Journal of Physics: Conf. Series, 817, 2017, 012025.
Malek, M.F., Mamat, M.H., Sahdan, M.Z., Zahidi, M.M., Khusaimi, Z., Mahmood, M.R., Influence of various sol concentrations on stress/strain and properties of ZnO thin films synthesised by sol–gel technique. Thin Solid Films 527 (2013), 102–109.
Wang, Y.G., Lau, S.P., Lee, H.W., Yu, S.F., Tay, B.K., Zhang, X.H., Tse, K.Y., Hng, H.H., Comprehensive study of ZnO films prepared by filtered cathodic vacuum arc at room temperature. J. Appl. Phys. 94 (2003), 1597–1604.
Filipovic, L., Selberherr, S., Performance and stress analysis of metal oxide films for CMOS-integrated gas sensors. Sensors 15 (2015), 7206–7227.
Ozen, I., Gulgun, M.A., Residual stress relaxation and microstructure in ZnO thin films, advances in. Sci. Technol. 45 (2006), 1316–1321.
Liu, X.J., Song, C., Zeng, F., Wang, X.B., Pan, F., Influence of annealing on microstructure and magnetic properties of co-sputtered Co-doped ZnO thin films. J. Phys. D. Appl. Phys. 40 (2007), 1608–1613.
Ziani, A., Davesnne, C., Labbe, C., Cardin, J., Marie, P., Portier, X., Frilay, C., Boudin, S., Annealing effects on the photoluminescence of terbium doped zinc oxide films. Thin Solid Films 553 (2014), 52–57.
Innocenzi, P., Infrared spectroscopy of sol–gel derived silica-based films: a spectra-microstructure overview. J. Non-Crystalline Solids 316 (2003), 309–319.
Yang, J., Zhao, Y., Frost, R.L., Infrared and infrared emission spectroscopy of gallium oxide alpha-GaO(OH) nanostructures. Spectrochim. Acta A Mol. Biomol. Spectrosc. 74 (2009), 398–403.
Muthukumaran, S., Gopalakrishnan, R., Structural, FTIR and photoluminescence studies of Cu doped ZnO nanopowders by co-precipitation method. Optical Mater. 34 (2012), 1946–1953.
Gayen, R.N., Sarkar, K., Hussain, S., Bhar, R., Pal, A.K., ZnO thin films by modified sol-gel technique. Indian J. Pure Appl. Phys. 49 (2011), 470–477.
Girija, K., Thirumalairajan, S., Avadhani, G.S., Mangalaraj, D., Ponpandian, N., Viswanathan, C., Synthesis, morphology, optical and photocatalytic performance of nanostructured β-Ga2O3. Mater. Res. Bull. 48 (2013), 2296–2303.
Petrović Ž., Ristić M., Musić S., Development of ZnO microstructures produced by rapid hydrolysis of zinc acetylacetonate. Ceram. Int. 40:7 (2014), 10953–10959.
Zunke, I., Heft, A., Schäfer, P., Haidu, F., Lehmann, D., Grünler, B., Schimanski, A., Zahn, D.R.T., Conductive zinc oxide thin film coatings by combustion chemical vapour deposition at atmospheric pressure. Thin Solid Films 532 (2013), 50–55.
El-Kemary, M., Nagy, N., El-Mehasseb, I., Nickel oxide nanoparticles: synthesis and spectral studies of interactions with glucose. Mater. Sci. Semicinductor Processing 16 (2013), 1747–1752.
Goswami, N., Sahai, A., Structural transformation in nickel doped zinc oxide nanostructures. Mater. Res. Bull. 48 (2013), 346–351.
Gab, M., Dı’az-Carrasco, P., Agullo-Rueda, F., Herrero, P., Landa-Ca'novas, A.R., Ramos-Barrado, J.R., High quality ZnO and Ga:ZnO thin films grown onto crystalline Si (100) by RF magnetron sputtering. Sol. Energy Mater. Sol. Cells 95 (2011), 2327–2334.
Tsay, Ch.-Y., Wu, Ch.-W., Lei, Ch.-M., Chen, F.-Sh., Lin, Ch.-K., Microstructural and optical properties of Ga-doped ZnO semiconductor thin films prepared by sol–gel process. Thin Solid Films 519 (2010), 1516–1520.
Xu, L., Zheng, G., Miao, J., Xian, F., Dependence of structural and optical properties of sol–gel derived ZnO thin films on sol concentration. Appl. Surf. Sci. 258 (2012), 7760–7765.
Sarica, E., Bilgin, V., Structural, optical, electrical and magnetic studies of ultrasonically sprayed ZnO thin films doped with vanadium. Surf. Coat. Techn. 286 (2016), 1–8.
Singh, J., Ranwa, S., Akhtar, J., Kumar, M., Growth of residual stress-free ZnO films on SiO2/Si substrate at room temperature for MEMS devices. AIP Adv., 5, 2015, 067140.
Mathew, J.P., Varghese, G., Mathewa, J., Effect of post thermal annealing on the structural and optical properties of ZnO thin films prepared from polymer precursor. Chin. Phys. B, 21(7), 2012, 078104.
Zou, S., Yang, H., Wang, H.P., Lou, D., Tu, C.Y., Zhang, Y.C., Microstructure, optical and photoluminescence properties of Ga-doped ZnO films prepared by pulsed laser deposition. Physica B 414 (2013), 7–11.
Mahdi, H., Ben Ayadi, Z., Alaya, S., Gauffier, J.L., Djessas, K., The effects of dopant concentration and deposition temperature on the structural, optical and electrical properties of Ga-doped ZnO thin films. Supperlatt. Microstr. 72 (2014), 60–71.
Zhao, J.L., Sun, X.W., Ryu, H., Moon, Y.B., Thermally stable transparent conducting and highly infrared reflective Ga-doped ZnO thin films by metal organic chemical vapor deposition. Optical Mater. 33 (2011), 768–772.
Zegadi, Ch., Abdelkebir, Kh., Chaumont, D., Adnane, M., Hamzaoui, S., Influence of Sn low doping on the morphological, structural and optical properties of ZnO films deposited by sol gel dip-coating. Adv. Mater. Phys. Chem., 4, 2014, 46474.
Elam, J.W., Sechrist, Z.A., George, S.M., ZnO/Al2O3 nanolaminates fabricated by atomic layer deposition: growth and surface roughness measurements. Thin Solid Films 414 (2012), 43–55.