Photocatalytic and electrically conductive transparent Cl-doped ZnO thin films via aerosolassisted chemical vapour deposition

被引:43
|
作者
Jiamprasertboon, Arreerat [1 ,2 ]
Powell, Michael J. [2 ]
Dixon, Sebastian C. [2 ]
Quesada-Cabrera, Raul [2 ]
Alotaibi, Abdullah M. [2 ]
Lu, Yao [3 ]
Zhuang, Aoyun [2 ]
Sathasivam, Sanjayan [2 ]
Siritanon, Theeranun [1 ]
Parkin, Ivan P. [2 ]
Carmalt, Claire J. [2 ]
机构
[1] Suranaree Univ Technol, Inst Sci, Sch Chem, 111 Univ Ave, Muang, Nakhon Ratchasi, Thailand
[2] UCL, Dept Chem, Mat Chem Ctr, 20 Gordon St, London WC1H 0AJ, England
[3] UCL, Dept Mech Engn, London WC1E 7JE, England
基金
英国工程与自然科学研究理事会;
关键词
ZINC-OXIDE FILMS; RAY PHOTOELECTRON-SPECTROSCOPY; OPTICAL-PROPERTIES; OPTOELECTRONIC PROPERTIES; HYDROTHERMAL SYNTHESIS; DOPING CONCENTRATION; STEARIC-ACID; CHLORINE; ALUMINUM; TIO2;
D O I
10.1039/c8ta01420e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A simple, economical and effective solution-based chemical vapour deposition (CVD) technique, aerosol-assisted CVD, has been successfully applied to produce inexpensive Cl-doped ZnO films using Zn acetate dihydrate and FeCl3. X-ray photoelectron spectroscopy and the increase in cell parameters from powder X-ray diffraction determined that Cl had been doped into the wurtzite ZnO lattice. The Cl-doping had a significant effect on the morphology of the thin films synthesised and resulted in an improvement in the visible light transmission and lower electrical resistance (typical resistivities of doped films approximate to 10(-2) cm). The highest transmittance (% T) of 85% was obtained when 7 mol% FeCl3 was used in the precursor solution and the lowest resistivity of 4.28 +/- 0.41 x 10(-2) cm was obtained with 5 mol% FeCl3. The greatest photocatalytic activity of stearic acid degradation under UVA irradiation was obtained on using 10 mol% FeCl3, resulting in the highest formal quantum efficiency (FQE) of 3.0 +/- 0.1 x 10(-4) molecule per photon. These films, therefore, display transparent conducting oxide and photocatalytic properties, giving multifunctional characteristics and promising applications.
引用
收藏
页码:12682 / 12692
页数:11
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