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| 1 | Structural and luminescence enhancement properties of Eu^(3+)/Ag nanocrystallites doped SiO_2-TiO_2 matrices显示文摘We reported here the structural and optical characterisation of silver nanocrystallites/Eu3+ :SiO2-TiO2 matrices synthesised through sol-gel route. Structural characterisations were done by using energy dispersive spectroscopy (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), atomic force microscope (AFM) and transmission electron microscopy (TEM) measurements and optical characterisations were performed by absorption and emission spectroscopy. The TEM and XRD measurements confirmed the presence of nanocrystals. A broad absorption band was observed due to surface plasmon resonance of silver nanocrystals. The effect of silver nanocrystals on the emission spectrum of Eu3+ doped SiO2-TiO2 matrices was discussed. An attempt was made to explain this fluorescence enhancement by invoking phenomena such as energy transfer, asymmetry ratio, surface plasmon, surface roughness, crystallinity and grain boundary. Our analysis, based on the experimental results, suggested that all the phenomena except crystallinity and grain boundary had favourable effects on fluorescence enhancement. We also estimated the relevant parameters associated with the phenomena that affected the fluorescence emission from the Eu3+ ions in the matrix. It was seen that the theoretical estimate of fluorescence enhancement agreed well with the experimental estimate. | Arun Kumar K V Revathy K P Prathibha Vasudevan Sunil Thomas Biju P R Unnikrishnan N V | 2013 | Journal of Rare Earths2013，31，5： | 2 |
| 2 | GreenPro:a new methodology for cleaner and greener process design 显示文摘 | Khan F I Natrajan B R Revathi P | 2001 | Journal of Loss Prevention in the Process Industries2001，14，4： | 1 |
| 3 | An outbreak of extended spectrum β-lactamase producting salmonella in a burns ward 显示文摘 | Revathi G Shannon KP Stapleton P | 1998 | J Hosp Infect1998，40，4： | 1 |
| 4 | Substrate Temperature Dependent Physical Properties of In2S3 Films显示文摘 | Revathi N Prathap P Subbaiah Y P V | 2008 | Journal of Physics D:Applied Physics2008，41，15： | 1 |
| 5 | Nonlinear finite element analysis of reinforced concrete beams 显示文摘 | Revathi P Menon D | 2005 | Journal of Struc- tural Engineering2005，32，2： | 1 |
| 6 | Preparation and characteriza- tion of transparent conducting ZnS: A1 films显示文摘 | Prathap P Revathi N | 2009 | Solid State Sciences2009，11，： | 1 |
| 7 | Acanthamoeba kerati- tis -A six year epidemiological review from a tertiary care eye hospital in South India显示文摘 | Manikandan P Bhaskar M Revathy R | 2004 | Indian J Med Microbiol2004，22，： | 1 |
| 8 | Image zooming by wavelets 显示文摘 | REVATHY K RAJU G NAYAR S R P | 2000 | Fractal-Complex Geomety Patterns & Scaling in Nature & Society2000，8，3： | 1 |
| 9 | Preparation and Characterzation of Transparent Conducting ZnS : A1 Films显示文摘 | Prathap P Revathi N Subbaiah Y P V | 2009 | Solid State Sciences2009，11，1： | 1 |
| 10 | Haplotype diversity of 16 Y-chromosomal STRs in three main ethnic populations (Malays, Chinese and Indians) in Malaysia显示文摘 | Yuet MC Revathi P Phoon YK | 2007 | Forensic Science International2007，167，： | 1 |
| 11 | Knowledge discovery in diagnose of crop diseases using machine learning techniques显示文摘 | Revathi P Revathi R | 2011 | International Journal of Engineering Science and Technology2011，3，9： | 1 |
| 12 | Existence of solutions for nonlinear fractional stochastic differential equations显示文摘 | Sakthivel R Revathi P Ren Y | 2013 | Nonlinear Analysis2013，，： | 1 |
| 13 | A fuzzy pro-gramming approach for formation of virtual cells under dynamic and uncertain conditions 显示文摘 | Jayachitra R Revathy A Prasad P S S | 2010 | International Journal of Engineering Science and Technology2010，2，6： | 1 |
| 14 | An outbreak of extended-spectrum β-lactamase producing salmonella senftenberg in a burns ward显示文摘 | Revathi G Shannon KP Stapleton P | 1998 | J Hosp Infeet1998，40，4： | 1 |
| 15 | Architecture Design and FPGA Implementation of CORDIC Algorithm for Fingerprint Recog- nition Applications显示文摘 | Revathi P Nageswara Rao M V | 2012 | Procedia Technology2012，6，： | 1 |
| 16 | Acanthamoeba keratitis-A six year epidemiological review from a tertiary care eye hospital in South India显示文摘 | Manikandan P Bhaskar M Revathy R John RK Narendran V Parmeerselvam K | 2004 | Indian J Med Microbiol2004，22，4： | 1 |
| 17 | Isolation and antimicrobial susceptibility pattern of Nocardia among people with culture-proven ocular infections attending a tertiary care eye hospital in Tamilnadn, South India显示文摘 | Manikandan P Bhaskar M Revathi R | 2007 | Eye (Lond)2007，21，8： | 1 |
| 18 | Al-doped ZnS layers synthesized by solution growth method显示文摘 | Nagamani K Revathi N Prathap P | 2012 | Current Appl Phys2012，12，2： | 1 |
| 19 | An outbreakof extended spectrum β-lactamase-producing Salmonella in a burns ward显示文摘 | Revathi G Shannon K P | 1998 | J Hosp Infect1998，40，4： | 1 |
| 20 | Thickness effect on the microstructure,morphology and optoelectronic properties of ZnS films显示文摘 | Prathap P Revathi N Venkata Subbaiah Y P | 2008 | J Phys Condens Matter2008，20，03： | 1 |
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