|
|
|
Single-source precursor route for overcoating
CdS and ZnS shells around CdSe core nanocrystals |
| Guanjiao CHEN,Wenjin ZHANG,Xinhua ZHONG, |
| Key Laboratory for Advanced
Materials, Department of Chemistry, East China University of Science
and Technology, Shanghai 200237, China; |
|
|
|
|
Abstract We reported a facile route for overcoating CdS and ZnS shells around colloidal CdSe core nanocrystals. To synthesize such double shelled core/shell nanocrystals, first, CdSe core nanocrystals were prepared in a much “greener” and cheap route, which did not involve the use of hazardous and expensive trioctylphosphine. Then, a low-cost and labor-saving route was adopted for the CdS and ZnS shell growth with the use of thermal decomposition of commercial available air stable single-source precursors cadmium diethyldithiocarbamate and zinc diethyldithiocarbamate in a non-coordinating solvent at intermediate temperatures. Powder X-ray diffraction patterns and transmission electron microscopy images confirm the epitaxial growth of the shell in the core/shell nanocrystals. The photoluminescence quantum yield of the resulting CdSe/CdS/ZnS core/shell nanocrystals can be as high as 90% in organic media and up to 60% after phase transfer into aqueous media. By varying the size of CdSe cores, the emission wavelength of the obtained core/shell nanostructures can span from 554 to 636 nm.
|
| Keywords
Luminescent quantum dots
core/shell nanostructure
CdSe/CdS/ZnS nanocrystals
single-source precursor
|
|
Issue Date: 05 June 2010
|
|
|
Rogach, A. L.; Gaponik, N.; Lupton, J. M.; Bertoni, C.; Gallardo, D. E.; Dunn, S.; Pira, N. L.; Paderi, M.; et al, Angew. Chem. Int. Ed. 2008, 47, 6538–6549
doi: 10.1002/anie.200705109
|
|
Somers, R. C.; Bawendi, M. G.; Nocera, D. G., Chem. Soc. Rev. 2007, 36, 579–591
doi: 10.1039/b517613c
|
|
Burda, C.; Chen, X.; Narayanan, R.; El-Sayed, M. A., Chem. Rev. 2005, 105, 1025–1102
doi: 10.1021/cr030063a
|
|
Michalet, X.; Pinaud, F. F.; Bentolila, L. A.; Tsay, J. M.; Doose, S.; Li, J. J.; Sundaresan, G.; Wu, A. M., Science 2005, 307, 538–544
doi: 10.1126/science.1104274
|
|
Tessler N.; Medvedev, V.; Kazes, M.; Kan, S. H.; Banin, U., Science 2002, 295, 1506–1508
doi: 10.1126/science.1068153
|
|
Murray, C. B.; Norris, D. J.; Bawendi, M. G., J. Am. Chem. Soc. 1993, 115, 8706–8715
doi: 10.1021/ja00072a025
|
|
Peng, X.; Manna, L.; Yang, W.; Wickham, J.; Scher, E. C.; Kadavanich, A.; Alivisatos, A. P., Nature 2000, 404, 59–61
doi: 10.1038/35003535
|
|
Peng, Z. A.; Peng, X., J. Am. Chem. Soc. 2001, 123, 183–184
doi: 10.1021/ja003633m
|
|
Qu, L.; Peng, Z. A.; Peng, X., Nano Lett. 2001, 1, 333–337
doi: 10.1021/nl0155532
|
|
Donega, C. D. M.; Hickey, S. G.; Wuister, S. F.; Vanmaekelbergh, D.; Meijerink, A., J. Phys. Chem. B 2003, 107, 489–496
doi: 10.1021/jp027160c
|
|
Zhong, X.; Feng, Y.; Zhang, Y., J. Phys. Chem. C 2007, 111, 526–531
doi: 10.1021/jp064797d
|
|
Hines, M. A.; Guyot-Sionnest, P., J. Phys. Chem. 1996, 100, 468–471
doi: 10.1021/jp9530562
|
|
Dabbousi, B. O.; Rodriguez-Viejo, J.; Mikulec, F. V.; Heine, J. R.; Mattoussi, H.; Ober, R.; Jensen, K. F.; Bawendi, M., J. Phys. Chem. B 1997, 101, 9463–9475
doi: 10.1021/jp971091y
|
|
Peng, X.; Schlamp, M. C.; Kadavanich, A.; Alivisatos, A., J. Am. Chem. Soc. 1997, 119, 7019–7029
doi: 10.1021/ja970754m
|
|
Mekis, I.; Talapin, D. V.; Kornowski, A.; Haase, M.; Weller, H., J. Phys. Chem. B 2003, 107, 7454–7462
doi: 10.1021/jp0278364
|
|
Reiss, P.; Bleuse, J.; Pron, A., Nano Lett. 2002, 2, 781–784
doi: 10.1021/nl025596y
|
|
Talapin, D. V.; Koeppe, R.; Gotzinger, S.; Kornowski, A.; Lupton, J. M.; Rogach, A. L.; Benson, O.; Feldmann, J.; et al., Nano Lett. 2003, 3, 1677–1681
doi: 10.1021/nl034815s
|
|
Li, J. J.; Wang, Y. A.; Guo, W.; Keay, J. C.; Mishima, T. D.; Johnson, M. B.; Peng, X., J. Am. Chem. Soc. 2003, 125, 12567–12575
doi: 10.1021/ja0363563
|
|
Fang, Z.; Liu, L.; Wang, J.; Zhong, X., J. Phys. Chem. C 2009, 113, 4301–4306
doi: 10.1021/jp809653c
|
|
Bae, W, K.; Char, K.; Hur, H.; Lee, S., Chem. Mater. 2008, 20, 531–539
doi: 10.1021/cm070754d
|
|
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, 5026–5027
doi: 10.1021/ja711379k
|
|
Talapin, D. V.; Mekis, I.; Gotzinger, S.; Kornowski, A.; Benson, O.; Weller, H., J. Phys. Chem. B 2004, 108, 18826–18831
doi: 10.1021/jp046481g
|
|
Lim, S. J.; Chon, B.; Joo, T.; Shin, S. K., J. Phys. Chem. C 2008, 112, 1744–1747
doi: 10.1021/jp710648g
|
|
Xie, R.; Kolb, U.; Li, J.; Basche, T.; Mews, A., J. Am. Chem. Soc. 2005, 127, 7480–7488
doi: 10.1021/ja042939g
|
|
Trindade, T.; O’Brien, P.; Zhang, X.; Motevali, M., J. Mater. Chem. 1997, 7, 1011–1016
doi: 10.1039/a608579b
|
|
Nair, P. S.; Radhakrishnan, T.; Revaprasadu, N.; Kolawole, G.; O’Brein, P., J. Mater. Chem. 2002, 12, 2722–2725
doi: 10.1039/b202072f
|
|
Protiere, M.; Reiss, P., Nanoscale Res. Lett. 2006, 1, 62–67
doi: 10.1007/s11671-006-9001-0
|
|
Zhang, W.; Chen, G.; Wang, J.; Ye, B. C.; Zhong, X., Inorg. Chem. 2009, 48, 9723–9731
doi: 10.1021/ic9010949
|
|
Protiere, M.; Reiss, P., Small 2007, 3, 399–403
doi: 10.1002/smll.200600581
|
|
Deng, Z.; Cao, L.; Tang, F.; Zou, B., J. Phys. Chem. B 2005, 109, 16671–16675
doi: 10.1021/jp052484x
|
|
Pong, B. K.; Trout, B. L.; Lee, J. Y., Langmuir 2008, 24, 5270–5276
doi: 10.1021/la703431j
|
|
Zhong, X.; Han, M.; Dong, Z.; White, T. J.; Knoll, W., J. Am. Chem. Soc. 2003, 125, 8589–8594
doi: 10.1021/ja035096m
|
|
Zhong, X.; Feng, Y.; Knoll, W.; Han, M., J. Am. Chem. Soc. 2003, 125, 13559–13563
doi: 10.1021/ja036683a
|
|
Wei, S. H.; Zunger, A., Appl. Phys. Lett. 1998, 72, 2011–2013
doi: 10.1063/1.121249
|
|
Peng, Z. A.; Peng, X., J. Am. Chem. Soc. 2001, 123, 1389–1395
doi: 10.1021/ja0027766
|
|
Talapin, D. V.; Rogach, A. L.; Haase, M.; Weller, H., J. Phys. Chem. B 2001, 105, 12278–12285
doi: 10.1021/jp012229m
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
