以络合剂为辅助剂, 用水热方法合成了多臂CdS纳米晶体, 用TEM、ED、SEM、RAMAN、PL等技术对产物进行了表征. 研究了不同络合剂对水热合成多臂CdS纳米晶体的影响, 以乙二胺、甲胺、乙胺为辅助剂水热合成所得三臂CdS的产率分别为2%、35%、85%, 而以氨为辅助剂时, 仅能得到颗粒状CdS纳米晶体. 此外, 对水热合成多臂CdS纳米晶体的形成机制作了初步探讨.
Multi-armed CdS nanocrystallites were prepared via the hydrothermal method, in which CdCl·2.5H2O and (NH4)2S acted as the starting materials. The as-prepared products were characterized by TEM, ED, SEM, RAMAN, PL, respectively. Different ligants were chosen as the assistance agent to investigate their effects on the multi-armed CdS nanocrystallites. It was found that the yields of multi-armed CdS nanocrystallites were 2%, 35%, and 85% when ethylenediamine, methylamine and ethamine were employed as the assistance agent. Only nano-particles of CdS were observed when ammonia was used. In addition, the mechanism for the formation of multi-armed CdS nanocrystallites was primarily discussed.
参考文献
| [1] | Louis R. J. Phys. Chem., 1986, 90: 2555--2560. [2] Vossmeyer T, Delonno E, Heath J R. Angew. Chem. Int. Ed. Engl., 1997, 36: 1080--1083. [3] Ohara P C, Heath J R, Gelbart W M. Angew. Chem. Int. Ed. Engl., 1997, 36: 1078--1080. [4] Merirav U, Foxman E B. Semilonductor Sci. Technol., 1998, 11: 255--262. [5] Andres R P, Bielefeld J D, Henderson J I, et al. Science, 1996, 273: 1690--1693. [6] Willner I, Patolsky F, Wasserman J. Angew. Chem. Int. Ed. Engl., 2001, 40: 1861--1864. [7] Hu J, Li L-S, Yang W, et al. Science, 2001, 292: 2060--2063. [8] Peng Z A, Peng X. J. Am. Chem. Soc., 2001, 123: 1389--1395. [9] Kuan X, Huang Y, Cui Y, et al. Nature, 2001, 409: 66--68. [10] Manna L, Scher E C, Alivisatos A P. J. Am. Chem. Soc., 2000, 122: 12700--12706. [11] Jun Y W, Lee S M, Kang N J, et al. J. Am. Chem. Soc., 2001, 123: 5150--5151. [12] Jun Y, Jung Y, Cheon J. J. Am. Chem. Soc., 2002, 124: 615--619. [13] Gao F, Lu Q, Xie S, Zhao D. Adv. Mater., 2002, 14: 1537--1540. [14] Arguello C A, Rousseau D L, Porto S P S. Phys. Rev., 1969, 181: 1351--1355. [15] Nada K K, Sahu S N. Solid State Comm., 1999, 111: 671--675. [16] Nie Q L, Yuan Q L, Chen W X, et al. Journal of Crystal Growth, 2004, 265: 420--424. [17] 聂秋林, 袁求理, 徐铸德(NIE Qiu-Lin, et al). 无机材料学报(Journal of Inorganic Materials), 2004, 19 (6): 1411--1414. [18] Ma X C, Xu F, Qian Y T. Materials Research Bulletin, 2005, 40: 2180--2184. |
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