Skip to content


  • Nano Express
  • Open Access

Facile synthesis of monodisperse ZnS capped CdS nanocrystals exhibiting efficient blue emission

Nanoscale Research Letters20061:62

  • Published:


A new method for the capping of colloidal CdS nanocrystals with ZnS shells is presented. A combination of the monomolecular precursor zinc ethylxanthate (Zn(ex)2) and zinc stearate was used to replace hazardous organometallic reagents usually applied in this procedure, i.e. bis(trimethylsilyl) sulfide and diethylzinc. Its simple preparation, air-stability and low decomposition temperature of 150 °C make Zn(ex)2a very suitable source for the ZnS shell growth. With this precursor, highly luminescent CdS/ZnS core/shell nanocrystals (Q.Y. 35–45%), exhibiting narrow emission linewidths of 15–18 nm (FWHM) in the blue spectral region, can reproducibly be obtained.


  • Semiconductor nanocrystals
  • CdS
  • ZnS
  • Fluorescence
  • Blue emission


Authors’ Affiliations

CEA Grenoble, DRT/LITEN/DTNM/L2T, 17 rue des Martyrs, 38054 Grenoble cedex 9, France
CEA Grenoble, DSM/DRFMC/SPrAM (UMR 5819 CEA-CNRS-Université Joseph Fourier 1)/LEMOH, 17 rue des Martyrs, 38054 Grenoble cedex 9, France


  1. (a) A.I. Ekimov, A.A. Onushchenko, J. Exp. Theor. Phys. Lett. 34(6), 346 (1982); (b) A. Henglein, J. Phys. Chem. 86, 2291 (1982); (c) R. Rossetti, L. Brus, J. Phys. Chem. 86, 4470 (1982)Google Scholar
  2. Murray CB, Norris DJ, Bawendi MG: J. Am. Chem. Soc.. 1993, 115: 8706. COI number [1:CAS:528:DyaK3sXlsV2ltL8%3D] COI number [1:CAS:528:DyaK3sXlsV2ltL8%3D] 10.1021/ja00072a025View ArticleGoogle Scholar
  3. (a) Z.A. Peng, X. Peng, J. Am. Chem. Soc. 123, 183 (2001); (b) L. Qu, Z.A. Peng, X. Peng, Nano Lett. 1(6), 333 (2001)View ArticleGoogle Scholar
  4. (a) M.A. Hines, P. Guyot-Sionnest, J. Phys. Chem. B 100, 468 (1996); (b) B.O. Dabbousi, J. Rodriguez-Viejo, F.V. Mikulec, J.R. Heine, H. Mattoussi, R. Ober, K.F. Jensen, M.G. Bawendi, J. Phys. Chem. B 101, 9463 (1997); (c) X. Peng, M.C. Schlamp, A.V. Kadavanich, A.P. Alivisatos, J. Am. Chem. Soc. 119, 7019 (1997); (d) P. Reiss, J. Bleuse, A. Pron, Nano Lett. 2(7), 781 (2002)View ArticleGoogle Scholar
  5. S. Kim, B. Fisher, H.-J. Eisler, M.G. Bawendi, J. Am. Chem. Soc. 125, 11466 (2003); (b) K. Yu, B. Zaman, S. Romanova, D. Wang, J.A. Ripmeester, Small 1, 332 (2005); (c) C.T. Cheng, C.Y. Chen, C. Lai, W. Liu, S. Pu, P.T. Chou, Y.H. Chou, H.T. Chiu, J. Mater. Chem. 15, 3409 (2005); (d) C.Y. Chen, C.T. Cheng, J.K. Yu, S.C. Pu, Y.M. Cheng, P.T. Chou, Y.H. Chou, H.T. Chiu, J. Phys. Chem. B 108, 10687 (2004)View ArticleGoogle Scholar
  6. P.S. Nair, T. Radhakrishnan, N. Revaprasadu, G. Kolawole, P. O’Brien, J. Mater. Chem. 12, 2722 (2002)View ArticleGoogle Scholar
  7. Yu WW, Qu L, Guo W, Peng X: Chem. Mater.. 2003, 15: 2854. COI number [1:CAS:528:DC%2BD3sXks12msrw%3D] 10.1021/cm034081kView ArticleGoogle Scholar
  8. Yu WW, Peng X: Angew. Chem. Int. Ed.. 2002, 41: 2368. COI number [1:CAS:528:DC%2BD38XlsVyqtrs%3D] 10.1002/1521-3773(20020703)41:13<2368::AID-ANIE2368>3.0.CO;2-GView ArticleGoogle Scholar
  9. Talapin DV, Rogach AL, Kornowski A, Haase M, Weller H: Nano Lett.. 2001,1(4):207. COI number [1:CAS:528:DC%2BD3MXhvVWkur8%3D] 10.1021/nl0155126View ArticleGoogle Scholar
  10. Li JJ, Wang YA, Guo W, Keay JC, Mishima TD, Johnson MB, Peng X: J. Am. Chem. Soc.. 2003, 125: 12567. COI number [1:CAS:528:DC%2BD3sXnsVOisLs%3D] 10.1021/ja0363563View ArticleGoogle Scholar
  11. Steckel JS, Zimmer JP, Coe-Sullivan S, Stott NE, Bulovic V, Bawendi MG: Angew. Chem. Int. Ed.. 2004, 43: 2154. COI number [1:CAS:528:DC%2BD2cXjsFSnsLo%3D] 10.1002/anie.200453728View ArticleGoogle Scholar
  12. Reiss P, Quemard G, Carayon S, Bleuse J, Chandezon F, Pron A: Mater. Chem. Phys.. 2004, 84: 10. COI number [1:CAS:528:DC%2BD2cXosFWnsQ%3D%3D] 10.1016/j.matchemphys.2003.11.002View ArticleGoogle Scholar
  13. J. Joo, H.B. Na, T. Yu, J.H. Yu, Y.W. Kim, F. Wu, J.Z. Zhang, T. Hyeon, J. Am. Chem. Soc. 125, 11100 (2003); (b) L. Li, N. Pradhan, Y. Wang, X. Peng, Nano Lett. 4(11), 2261 (2004)View ArticleGoogle Scholar
  14. N. Pradhan, S. Efrima, J. Am. Chem. Soc. 125, 2050 (2003); (b) P. Nair, T. Radhakrishnan, V. Revaprasadu, G. Kolawole, P. O’Brien, J. Mater. Chem. 12, 2722 (2002); (c) P.S. Nair, T. Radhakrishnan, N. Revaprasadu, P. O’Brien, Mater. Sci. Tech. 21(2), 237 (2005)View ArticleGoogle Scholar
  15. Li Y, Ye M, Yang C, Li X, Li Y: Adv. Funct. Mater.. 2005,15(3):433. COI number [1:CAS:528:DC%2BD2MXivVamtbc%3D] 10.1002/adfm.200400320View ArticleGoogle Scholar


© to the authors 2006