Browse > Article
http://dx.doi.org/10.5012/bkcs.2012.33.2.393

Synthesis of CdS, ZnS, and CdS/ZnS Core/Shell Nanocrystals Using Dodecanethiol  

Niu, Jinzhong (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Xu, Weiwei (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Shen, Huaibin (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Li, Sen (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Wang, Hongzhe (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Li, Lin Song (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Publication Information
Bulletin of the Korean Chemical Society / v.33, no.2, 2012 , pp. 393-397 More about this Journal
Abstract
We report a new route to synthesize high quality zinc blende CdS and ZnS nanocrystals in noncoordinating solvent 1-octadecene, using dodecanethiol (DDT) molecules as both the sulfur source and surface capping ligands. Different reaction temperatures and Cd(Zn)/DDT molar ratios were tested to optimize the synthesis conditions. Absorption photoluminescence (PL) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) pattern, and transmission electron microscopy (TEM) were used to characterize assynthesized nanocrystals. The narrow half width at the half-maximum on the long wavelength side of the firstexcitonic absorption peak and TEM images demonstrated nearly monodisperse size distributions of asprepared CdS, ZnS, and CdS/ZnS core/shell nanocrystals. Only trap emissions of the nanocrystals were detected when the amount of DDT was excessive, this came from the strong quenching effect of thiol groups on the nanocrystal surfaces. After overcoating with ZnS shells, band-gap emissions of CdS nanocrystals were partially recovered.
Keywords
CdS; ZnS; Nanocrystals; Dodecanethiol;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)  (Related Records In Web of Science)
연도 인용수 순위
1 Wang, J.; Long, Y.; Zhang, Y.; Zhong, X.; Zhu, L. Chem. Phys. Chem. 2009, 10, 680.   DOI   ScienceOn
2 Lim, J.; Jun, S.; Jang, E.; Baik, H.; Kim, H.; Cho, J. Adv. Mater. 2007, 19, 1927.   DOI   ScienceOn
3 Protiere, M.; Reiss, P. Small 2007, 3, 399.   DOI   ScienceOn
4 Li, L. S.; Pradhan, N.; Wang, Y. J.; Peng, X. G. Nano Lett. 2004, 4, 2261.   DOI   ScienceOn
5 Panda, A. B.; Acharya, S.; Efrima, S.; Golan, Y. Langmuir 2007, 23, 765.   DOI   ScienceOn
6 Wang, Y.; Yang, H.; Xia, Z.; Tong, Z.; Zhou, L. Bull. Korean Chem. Soc. 2011, 32, 2316.   DOI   ScienceOn
7 Lee, S. S.; Seo, K. W.; Yoon, S. H.; Shim, I. W.; Byun, K. T.; Kwak, H. Y. Bull. Korean Chem. Soc. 2005, 26, 1579.   DOI   ScienceOn
8 Neo, M. S.; Venkatram, N.; Li, G. S.; Chin, W. S.; Ji, W. J. Phys. Chem. C 2010, 114, 18037.   DOI   ScienceOn
9 Chen, L.; Chen, Y. B.; Wu, L. M. J. Am. Chem. Soc. 2004, 126, 16334.   DOI   ScienceOn
10 Li, J. J.; Wang, Y. A.; Guo, W.; Keay, J. C.; Mishima, T. D.; Johanson, M. B.; Peng, X. J. Am. Chem. Soc. 2003, 125, 12567.   DOI   ScienceOn
11 Jasieniak, J.; Mulvaney, P. J. Am. Chem. Soc. 2007, 129, 2841.   DOI   ScienceOn
12 Smith, A. M.; Duan, H.; Rhyner, M. N.; Ruan, G.; Nie, S. Phys. Chem. Chem. Phys. 2006, 8, 3895.   DOI   ScienceOn
13 Liu, I. S.; Lo, H. H.; Chien, C. T.; Lin, Y. Y.; Chen, C. W.; Chen, Y. F.; Su, W. F.; Liou, S. C. J. Mater. Chem. 2008, 18, 675.   DOI   ScienceOn
14 Yu, W. W.; Wang, Y. A.; Peng, X. Chem. Mater. 2003, 15, 4300.   DOI   ScienceOn
15 Bowers, M. J.; McBride, J. R.; Rosenthal, S. J. J. Am. Chem. Soc. 2005, 127, 15378.   DOI   ScienceOn
16 Lim, S. J.; Chon, B.; Joo, T.; Shin, S. K. J. Phys. Chem. C 2008, 112, 1744.   DOI   ScienceOn
17 Talapin, D. V.; Mekis, I.; Götzinger, S.; Kornowski, A.; Benson, O.; Weller, H. J. Phys. Chem. B 2004, 108, 18826.   DOI   ScienceOn
18 Li, X.; Shen, H.; Li, S.; Niu, J. Z.; Wang, H.; Li, L. S. J. Mater. Chem. 2010, 20, 923.   DOI   ScienceOn
19 Chen, Y.; Vela, J.; Htoon, H.; Casson, J. L.; Werder, D. J.; Bussian, D. A.; Klimov, V. I.; Hollingsworth, J. A. J. Am. Chem. Soc. 2008, 130, 5026.   DOI   ScienceOn
20 Steckel, J. S.; Zimmer, J. P.; Coe-Sullivan, S.; Stott, N. E.; Bulovic, V.; Bawendi, M. G. Angew. Chem. Int. Ed. 2004, 43, 2154.   DOI   ScienceOn
21 Yu, W. W.; Peng, X. Angew. Chem. Int. Ed. 2002, 41, 2368.   DOI   ScienceOn
22 Brus, L. J. Phys. Chem. 1986, 90, 2555.   DOI
23 Murray, C. B.; Norris, D. J.; Bawendi, M. G. J. Am. Chem. Soc. 1993, 115, 8706.   DOI   ScienceOn
24 Peng, Z. A.; Peng, X. J. Am. Chem. Soc. 2001, 123, 183.   DOI   ScienceOn
25 Tong, H.; Zhu, Y. J. Nanotechnology 2006, 17, 845.   DOI   ScienceOn
26 Lee, M.; Han, S.; Jeon, Y. J. Bull. Korean Chem. Soc. 2010, 31, 3818.   DOI   ScienceOn