Growth And Properties Of Pulsed Laser Deposited Al-doped ZnO Thin Film

Gurpreet Kaur*,  Anirban Mitra, K.L. Yadav

High Power Laser Lab, Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India

Adv. Mater. Lett., 2015, 6 (1), pp 73-79

DOI: 10.5185/amlett.2015.5606

Publication Date (Web): Dec 28, 2014



Al-doping of 1.5% by weight, in ZnO (Al:ZnO), thin films are deposited on glass substrates at temperature 400 °C and varying oxygen gas pressure (PO2) from 1.33 Pa to 5.32 Pa via Pulsed Laser Deposition (PLD) technique. The single crystalline nature of the thin films is confirmed from the X-ray diffraction (XRD) pattern. The evaluated crystallite size is found to be <15 nm. Atomic Force Microscopy (AFM) study reveals the columnar grain formation in the thin films, with low surface roughness. The surface morphology of the grown thin films is significantly affected by PO2. Optical measurements depict that the thin films are highly transparent in the visible region with transmittance up to 80%. The optical band gap calculated from Tauc’s plot evinced that Al-doping results in band edge bending in Al:ZnO thin films, a red shift in the band gap is observed with increase in PO2 that is due to the contributing electrons from oxygen ions. Photoluminescence (PL) spectra of films indicate the visible emission peaks originating from defect states. Optical properties of the thin films confirm their applicability for optoelectronic devices. The room temperature, current-voltage (I-V) plots indicate low resistivity in the thin films ~ 10-2 (Ω-cm).


Pulsed laser deposition, Al-doped ZnO (Al:ZnO) thin film, transmittance, Tauc&rsquo,s plot, band gap.

Previous issues

Celebrating 10th Years of Diamond Open Access Publishing in Advanced Materials  

Cerebral Oxygenation Studies Through Near Infrared Spectroscopy: A Review

Analysis of Fine Sulfoaluminate Cement by Strength and Thermogravimetric Analysis

Characterization of the Interfacial Surface Energy for Composite Electrical Conduction Measurements using Two Full Range Percolation Threshold Models

Quantitative Detect of Fatigue of Membrane of Erythrocyte in Uniform Shear Field

Ecofriendly-developed Polyacrylic Acid-coated Magnetic Nanoparticles as Catalysts in Photo-fenton Processes

Evaluation of Drug Interactions with Medications Prescribed to Ambulatory Patients with Metabolic Syndrome in Urban Area

Fiber-reinforced Cementitious Composite: Sensitivity Analysis and Parameter Identification 

Evaluation of Drug Utilization Patterns Based on World Health Organization Drug use Indicators at Outpatients Clinics

Are Quantitatively Micro-machined Scaffolds Effective for Cell Technology?

Synthesis and Characterization of Gold Nanoparticles from Lobelia Nicotianifolia Leaf Extract and its Biological Activities

Advanced Oxidations of Tartrazine Azo-dye

Antifungal Activity of Salvia jordanii Against the Oral Thrush Caused by the Cosmopolitan Yeast Candida albicans among Elderly Diabetic Type 2 patients

Upcoming Congress

Knowledge Experience at Sea TM