Tunability of ZnO Optical Band on Varying Zn2+ Concentration
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 10
Abstract
Zinc oxide (ZnO) film is grown by utilizing Ammonium Zincate precursor through Successive Ionic Layer Adsorption and Reaction (SILAR). SILAR processes involves subsequent dipping cycles in cationic and anionic solution under suitable reaction conditions, which facilitates the controlled homogeneous film growth. Significance change in physical properties on change in concentration and dipping cycles, are analyzed by XRD, SEM, Profilometer and UV-Vis spectroscopy. Absence of additional peaks other than ZnO phase in diffraction pattern confirm the phase purity. In addition, observed strong peak intense imports well crystalline nature even at this low reaction temperature. Particularly the film grown with 0.05 molarity has its preferred orientation along (002) plane. Indicates that the grown is predominantly along c-axis as hexagonal structure oriented in perpendicular direction to substrate surface. SEM morphology, the porous particles and small islands of agglomeration are observed for high molarity films. In agreement with the physic observation the 0.05 molarity film show high transmittance (wavelength range 350-800nm) and low transmittance near fundamental absorption.
Authors and Affiliations
S Hussain, K Sathiyaraj, J. Joseph Prince
Keywords
Related Articles
- EP ID EP18948
- DOI -
- Views 303
- Downloads 9
A Wearable Device for Continuous Detection and Screening of Epilepsy during Daily Life
Epilepsy is a very fatal condition which is caused as a result of imbalance in the nervous system. The very common symptoms of epilepsy includes sudden fluctuations in heart beat rate and involuntary muscular movements...
slugSeparation of Respiratory Sound from Heart sound for Asthma Analysis
Heart Sound (HS) interferes with lung sound in the diagnosis of respiratory illness. In the analysis of respiratory disorders, Separation of Respiratory Sound (RS) from heart sound plays a major role. The proposed schem...
Review on an Algorithm for Three Stage Clos Interconnected Network
Clos Interconnection network is one of the known connection networks in processing systems and distributed systems, which is used extensively in many fields such as Telecommunication networks, ATM switches and Data tra...
Non Determinism of Finite Automata
The basic finite automata model has been extended over the years with different acceptancemodes (nondeterminism, alternation), new or improved devices (two-way heads, Pebbles, nested pebbles) and with cooperation. None...
Swelling Properties of Fly Ash Mixed with Bentonite
The present study has been carried out to find out the swelling properties of fly ash and bentonite mixtures. Laboratory tests were conducted at different proportions of fly ash and bentonite. Fly ash is a naturally cem...