Title :
Aqueous synthesis of thiol-capped water-soluble Fe-doped ZnS nanocrystals
Author :
Xie, Ruishi ; Liu, Lingyun ; Li, Lihua ; Li, Yuanli ; Chen, Qiang ; Yue, Xi ; Xiao, Dingquan ; Zhu, Jianguo
Author_Institution :
Coll. of Mater. Sci. & Eng., Sichuan Univ., Chengdu, China
Abstract :
Fe-doped ZnS (Fe:ZnS) nanocrystals were prepared by a liquid-solid-solution (LSS) method. The XRD results show that Fe:ZnS nanocrystals is crystallized with zinc-blende structure. The PL peaks of Fe:ZnS nanocrystals have a red-shift behavior as a Fe concentration increased. These results indicate that the tuning range of emission wavelength is approximately between 440 and 464 nm in the Fe:ZnS nanocrystals by changing the Fe concentration. The PL bands of Fe:ZnS nanocrystals may be due to the surface trap states.
Keywords :
II-VI semiconductors; X-ray diffraction; crystallisation; iron; materials preparation; nanostructured materials; photoluminescence; red shift; semiconductor doping; surface states; zinc compounds; Fe concentration; Fe-doped nanocrystals; PL peaks; XRD; ZnS:Fe; aqueous synthesis; crystallization; emission wavelength; liquid-solid-solution method; red shift; surface trap states; thiol-capped water-soluble; zinc-blende structure; Crystallization; Doping; Iron; Light emitting diodes; Nanocrystals; Quantum dot lasers; Solvents; Temperature; X-ray scattering; Zinc compounds;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424461
