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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.48 [2010] >
IJPAP Vol.48(06) [June 2010] >
| Title: | Synthesis and characterization of vertically aligned ZnO nanorods with controlled aspect ratio |
| Authors: | Gayen, R N
Bhar, R
Pal, A K |
| Keywords: | ZnO nanorods
Microstructure
Optical properties
Photoluminescence |
| Issue Date: | Jun-2010 |
| Publisher: | CSIR |
| Abstract: | Vertically aligned
zinc oxide (ZnO) nanorods with controlled aspect ratio have been deposited by
hybrid wet chemical route onto glass substrates with pre-deposited ZnO seeds
produced by sputtering a ZnO target in argon plasma. Films have been
characterized by measuring microstructural and optical properties. The
photoluminescence (PL) spectra have been found to be dominated by the presence
of peaks at ~ 394 nm (~3.15 eV) due to the free exciton emission and at ~470 nm
(~2.64 eV) due to transitions from deep donor states arising out of oxygen
vacancy (VO) located ~0.06 eV below the
conduction band to the valance band. Bonding environment has been obtained from
Raman and Fourier transformed infrared (FTIR) studies. |
| Page(s): | 385-393 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.48(06) [June 2010]
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