Influence Of Air Annealing On The Structural, Morphology And Optical Properties Of ZnSe Thin Films By CW-CO2 Laser Evaporation

Wuttichai Phae-ngam1*, Suebtarkul Suchat1, Taswal Kumpeerapun2 and Voravit Kosalathip2

1Physics Program, Phranakhon Rajabhat University (PNRU), Bangkok, Thailand

2Department of Physics, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, Thailand

Adv. Mater. Lett., 2014, 5 (9), pp 496-500

DOI: 10.5185/amlett.2014.4577

Publication Date (Web): Sep 07, 2014



 CW-CO2 laser evaporation was used to deposit ZnSe thin films onto glass microscope slides. The films prepared were annealed in air at annealing temperatures of 100, 200 and 300°C. The effect of annealing temperature on the surface morphology, crystal structure and optical properties was investigated. All samples were seen to have an homogeneous surface morphology. The as-deposited and low temperature annealed ZnSe films exhibited the cubic phase. As the annealing temperature increased, a hexagonal phase developed and at 300°C the ZnO phase began to appear. The average crystallite size of ZnSe films increased from 23.84 to 49.64 nm on annealing at 200°C. Dislocation density, strain in the film and film thickness decreased when the annealing temperature increased up to 200°C. The optical band-gap of the as-deposited film was 2.76 eV decreasing to about 2.70 eV at the 200°C anneal. The introduction of the ZnO phase at 300°C decreased crystallite size whereas it increased film strain. This work shows an easy and economical way to control band gap, crystallite size and film strain in ZnSe thin films by annealing in air. The lack of a pre-heated substrate and the ability to control band gap energy by annealing provides a versatile alternative source of ZnSe film deposition for potential optoelectronic applications.


ZnSe, thin film, laser evaporation, CO2 laser, air annealing.

Current Issue

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

Previous issues

Advanced Materials Congress Celebrating 10th Years of Establishment

Secure Management of Networked Batteries for Building Integrated Photovoltaics (BIPV) Systems  

The Cause of 100-year Low Carbonated Concrete of the Bridge 

Organic Montmorillonite Intercalated Nano-composites Prevent Post-Surgical Associated Infections

Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends

Preparation and Characterization of Nickel Ferrite Nanoparticles via Sol-gel Method

Nitrogen-doped Diamond Nanowire Gas Sensor for the Detection of Methane

Manufacture of Functional Open-cell Al Foams with Recycled Al Scraps using NaCl Ball Space Holder 

Vilsmeier-Haack Transformations under Non Classical Conditions

New Application of Highly Vesicular Basalt from Jabel Isbil Volcano (Dhamar-Rada'a Volcanic Field), Yemen

An Assessment of Tribological Characteristics under different Operating Condition

Functional Bi Coatings as A Perspective Material for Radiation Shields Production against Electron Radiation

Effects of Silica Modified NiFe2O4 on the Dielectric and Electrical Properties of NiFe2O4 filled Poly (methyl methacrylate) Composites

Upcoming Congress

Knowledge Experience at Sea TM