Structure dependent photoluminescence of nanoporous amorphous anodic aluminium oxide membranes: Role of F+ center defects

Abstract The origin of photoluminescence (PL) of the anodic aluminium oxide (AAO) membranes synthesized by electrochemical anodization of aluminium by using oxalic, phosphoric and sulfuric acid electrolytes for different anodization time duration have been investigated. All the as prepared AAO membranes exhibit strong visible blue luminescence around 410–430 nm at room temperature. The mechanism of the visible light emission in AAOs has been explained by correlating the structural studies of the membranes with the PL and electron paramagnetic resonance (EPR) spectroscopy measurements. It is found that the AAO membranes are amorphous in nature (XRD and HRTEM study) and they contain large concentration of structural of defects (HRTEM study). The extensive PL and EPR investigations have indicated the presence of singly ionized oxygen vacancy related defects (F + center defects) in AAO membranes. Based on the experimental evidences, the F + center defects are attributed to the visible blue light emission from the AAOs.

[1]  Dongsheng Xu,et al.  ELECTROCHEMICALLY INDUCED SOL-GEL PREPARATION OF SINGLE-CRYSTALLINE TIO2NANOWIRES , 2002 .

[2]  J. H. Chen,et al.  The investigation of photoluminescence centers in porous alumina membranes , 2006 .

[3]  Kenji Fukuda,et al.  Ordered Metal Nanohole Arrays Made by a Two-Step Replication of Honeycomb Structures of Anodic Alumina , 1995, Science.

[4]  A. Bund,et al.  Photoluminescence properties of heat-treated porous alumina films formed in oxalic acid , 2011 .

[5]  Kornelius Nielsch,et al.  Hexagonal pore arrays with a 50-420 nm interpore distance formed by self-organization in anodic alumina , 1998 .

[6]  S. Yin,et al.  INVESTIGATION ON THE ORIGIN OF THE BLUE EMISSION IN TITANIUM DOPED SAPPHIRE : IS F+ COLOR CENTER THE BLUE EMISSION CENTER ? , 1995 .

[7]  T. Gao,et al.  Blue luminescence in porous anodic alumina films: the role of the oxalic impurities , 2003 .

[8]  Weili Cai,et al.  Preparation and photoluminescence of alumina membranes with ordered pore arrays , 1999 .

[9]  Yongfeng Mei,et al.  Strong ultraviolet and violet photoluminescence from Si-based anodic porous alumina films , 2001 .

[10]  Wei-min Liu,et al.  Photoluminescence properties of porous anodic aluminium oxide membranes formed in mixture of sulfuric and oxalic acid , 2009 .

[11]  C. R. Martin,et al.  Carbon nanotubule membranes for electrochemical energy storage and production , 1998, Nature.

[12]  Y. Mei,et al.  Violet photoluminescence from Ge+-implanted Si-based nanoscale SiO2 islands array , 2002 .

[13]  Ke‐long Huang,et al.  Blue luminescence in porous anodic alumina films , 2007 .

[14]  Tapio T. Rantala,et al.  Electron spin resonance parameters of bulk oxygen vacancy in semiconducting tin dioxide , 2010 .

[15]  Kornelius Nielsch,et al.  Uniform Nickel Deposition into Ordered Alumina Pores by Pulsed Electrodeposition , 2000 .

[16]  S. Piazza,et al.  Influence of initial treatments of aluminium on the morphological features of electrochemically formed alumina membranes , 2003 .

[17]  Gobinda Gopal Khan,et al.  Nanowires: properties, applications and synthesis via porous anodic aluminium oxide template , 2007 .

[18]  Xinsheng Peng,et al.  Fabrication, morphology and structural characterization of ordered single-crystal Ag nanowires , 2002 .

[19]  Charles M. Lieber,et al.  Single-nanowire electrically driven lasers , 2003, Nature.

[20]  Liguo Ma,et al.  High-speed growth and photoluminescence of porous anodic alumina films with controllable interpore distances over a large range , 2007 .

[21]  Y. Mei,et al.  Nanoscale islands and color centers in porous anodic alumina on silicon fabricated by oxalic acid , 2004 .

[22]  J. Herrmann,et al.  Nanosized tin dioxide : Spectroscopic (UV-VIS, NIR, EPR) and electrical conductivity studies , 2001 .

[23]  Wenzhong Shen,et al.  Optical transmission spectra of ordered porous alumina membranes with different thicknesses and porosities , 2006 .

[24]  P. Chu,et al.  Ultrathin Amorphous Alumina Nanoparticles with Quantum-Confined Oxygen-Vacancy-Induced Blue Photoluminescence as Fluorescent Biological Labels , 2012 .

[25]  Jung Sang Suh,et al.  Highly ordered two-dimensional carbon nanotube arrays , 1999 .

[26]  Toshiaki Tamamura,et al.  Photonic Crystal Using Anodic Porous Alumina , 1999 .

[27]  Biao Wang,et al.  Preparation of photonic crystals made of air pores in anodic alumina , 2007 .