Open Access Open Access  Restricted Access Subscription or Fee Access

Structural and Photoluminescence Studies of Porous Anodic Alumina Templates Prepared using Different Electrolytes

Suchitra S. M., P. Ramana Reddy, Awasthi P., N. K. Udayashankar


The effect of different electrolytes on the structural and optical properties of porous anodic alumina (PAA) was investigated. PAA templates were synthesized using different electrolytes namely; oxalic, phosphoric, sulphuric and chromic acids maintained at two different temperatures, 18 and 27°C respectively. PAA templates were prepared using two-step anodization process in 0.3 M of sulphuric acid at 20 V, 0.3 M of oxalic acid at 40 V and 0.3 M of phosphoric acid at 90 V, and 0.3 M chromic acid at 50 V. Highly uniform hexagonal cell structure was obtained for the PAA templates synthesized using oxalic acid. It was found that the electrolyte temperature influenced the morphologies and regularities of PAA templates formed on aluminium substrate. X-ray diffraction analysis shows that PAA is in amorphous state. Photoluminescence (PL) analysis showed that a blue PL band occurs in the wavelength range of 350–550 nm. The experimental results indicated that the oxygen-related defect centers, F+ centers, are responsible for the photoluminescence of PAA templates. Among the different electrolytes used in our experiments, oxalic acid showed the highest peak in the emission spectra in PL.


Porous anodic alumina (PAA), anodization, scanning electron microscope (SEM), x-ray diffraction (XRD), photoluminescence (PL)

Full Text:



Samantilleke AP, Carneiro Joaquim AO, Alpuim P, et al. Electrochemical Anodizing, Structural and Mechanical Characterization of Nanoporous Alumina Templates. Journal of Nano Research (JNanoR). 2013; 25: 77–89p.

Muna Moussa Abbas. Electrochemical Self Assembly of Nanoporous Alumina Templates Title. Advances in Materials Physics and Chemistry (AMPC). 3(5). Article ID: 36469. Journal of Scientific Research. 2013.

Chung CK, Liao MW, Chang HC, et al. On Characteristics of Pore Size Distribution i Hybrid Pulse Anodized High Aspect Ratio Aluminium Oxide with Taguchi Method. Microsyst Technol. 2013; 387–393p.

Leszek Zaraska, Stepniowski Wojchiech J. The Effect of Anodising Temperature on Structural Features and Hexagonal Arrangement of Nanopores in Alumina Synthesized by Two-Step Anodising in Oxalic Acid. Thin Solid Films. 1 May 2013; 534: 155–161p.

Jeong SH, Hwang HY, Hwang SK, et al. Carbon Nanotubes Based on Anodic Aluminum Oxide Nano-Template. Carbon. 2004; 42(10): 2073–2080p.

Jenny M, Nunn S, Pang YT. J Solid State Electrochem. 2005; 7: 344–347p.

Stepniowski Wojcieh J, Agata Nowak Stepniowska, Adam Presz, et al. The Effects of Time and Temperature on the Arrangement of Anodic Aluminum Oxide Nanopores. Elsevier. 2004.

Stępniowski Wojciech J, Marta Michalska-Domańsk ałgorzata Norek, Tomasz Czujko. Mater Lett. 2014; 117: 69–73p.


  • There are currently no refbacks.