Defect emissions in ZnO nanostructures Export

@article{citeulike:2057887, abstract = {Defects in three different types of ZnO nanostructures before and after annealing under different conditions were studied. The annealing atmosphere and temperature were found to strongly affect the yellow and orange-red defect emissions, while green emission was not significantly affected by annealing. The defect emissions exhibited a strong dependence on the temperature and excitation wavelength, with some defect emissions observable only at low temperatures and for certain excitation wavelengths. The yellow emission in samples prepared by a hydrothermal method is likely due to the presence of OH groups, instead of the commonly assumed interstitial oxygen defect. The green and orange-red emissions are likely due to donor acceptor transitions involving defect complexes, which likely include zinc vacancy complexes in the case of orange-red emissions.}, author = {Djurisic, A. B. and Leung, Y. H. and Tam, K. H. and Hsu, Y. F. and Ding, L. and Ge, W. K. and Zhong, Y. C. and Wong, K. S. and Chan, W. K. and Tam, H. L. and Cheah, K. W. and Kwok, W. M. and Phillips, D. L.}, citeulike-article-id = {2057887}, citeulike-linkout-0 = {http://dx.doi.org/10.1088/0957-4484/18/9/095702}, citeulike-linkout-1 = {http://stacks.iop.org/0957-4484/18/i=9/a=095702}, doi = {10.1088/0957-4484/18/9/095702}, journal = {Nanotechnology}, keywords = {defect, emmission, hydroxyl, nanoparticles, sem}, number = {9}, pages = {095702+}, posted-at = {2007-12-04 19:58:22}, priority = {2}, title = {Defect emissions in ZnO nanostructures}, url = {http://dx.doi.org/10.1088/0957-4484/18/9/095702}, volume = {18}, year = {2007} }

TY - JOUR ID - citeulike:2057887 L3 - citeulike-article-id:2057887 N2 - Defects in three different types of ZnO nanostructures before and after annealing under different conditions were studied. The annealing atmosphere and temperature were found to strongly affect the yellow and orange-red defect emissions, while green emission was not significantly affected by annealing. The defect emissions exhibited a strong dependence on the temperature and excitation wavelength, with some defect emissions observable only at low temperatures and for certain excitation wavelengths. The yellow emission in samples prepared by a hydrothermal method is likely due to the presence of OH groups, instead of the commonly assumed interstitial oxygen defect. The green and orange-red emissions are likely due to donor acceptor transitions involving defect complexes, which likely include zinc vacancy complexes in the case of orange-red emissions. IS - 9 JF - Nanotechnology TI - Defect emissions in ZnO nanostructures VL - 18 SP - 095702 KW - defect KW - emmission KW - hydroxyl KW - nanoparticles KW - sem AU - Djurisic, AB AU - Leung, YH AU - Tam, KH AU - Hsu, YF AU - Ding, L AU - Ge, WK AU - Zhong, YC AU - Wong, KS AU - Chan, WK AU - Tam, HL AU - Cheah, KW AU - Kwok, WM AU - Phillips, DL PY - 2007/// UR - http://dx.doi.org/10.1088/0957-4484/18/9/095702 ER -