JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Improved Luminescent Characterization and Synthesis of InP/ZnS Quantum Dot with High-Stability Precursor
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Improved Luminescent Characterization and Synthesis of InP/ZnS Quantum Dot with High-Stability Precursor
Lee, Eun-Jin; Moon, Jong-Woo; Kim, Yang-Do; Shin, Pyung-Woo; Kim, Young-Kuk;
  PDF(new window)
 Abstract
We report a synthesis of non-toxic InP nanocrystals using non-pyrolytic precursors instead of pyrolytic and unstable tris(trimethylsilyl)phosphine, a popular precursor for synthesis of InP nanocrystals. In this study, InP nanocrystals are successfully synthesized using hexaethyl phosphorous triamide (HPT) and the synthesized InP nanocrystals showed a broad and weak photoluminescence (PL) spectrum. As synthesized InP nanocrystals are subjected to further surface modification process to enhance their stability and photoluminescence. Surface modification of InP nanocrystals is done at using 1-dodecanethiol, zinc acetate and fatty acid as sources of ZnS shell. After surface modification, the synthesized InP/ZnS nanocrystals show intense PL spectra centered at the emission wavelength 612 nm through 633 nm. The synthesized InP/ZnS core/shell structure is confirmed with X-ray diffraction (XRD) and Inductively Coupled Plasma - Atomic Emission Spectrometer (ICP-AES). After surface modification, InP/ZnS nanocrystals having narrow particle size distribution are observed by Field Emission Transmission Electron Microscope (FE-TEM). In contrast to uncapped InP nanocrystals, InP/ZnS nanocrystals treated with a newly developed surface modified procedure show highly enhanced PL spectra with quantum yield of 47%.
 Keywords
InP;Quantum dot;Surface modification;
 Language
Korean
 Cited by
 References
1.
K. Sun, M. Vasudev, H. S. Jung, J. Yang, A. Kar, Y. Li, K. Reinhardt, P. Snee, M. A. Stroscio and M. Dutta: Microelectron J., 40 (2009) 644. crossref(new window)

2.
J. Lim, M. P, W. K. Bae, D. Lee, S. Lee, C. Lee and K. Char: ACS Nano, 10 (2013) 9019.

3.
Y. K. Kim: Trends Met. & Mater. Eng., 27 (2014) 59.

4.
O. I. Micic, C. J. Curtis, K. M. Jones, J. R. Sprague and A. J. Nozik: J. Phys. Chem., 98 (1994) 4966. crossref(new window)

5.
A. A. Guzelian, J. E. B. Katari, A. V. Kadavanich, U. Banin, K. Hamad, E. Juban and A. P. Alivisatos: J. Phys. Chem., 100 (1996) 7212. crossref(new window)

6.
W. S. Song, H. S. Lee, J. C. Lee, D. S. Jang, Y. Choi, M. Choi, and H. Yang: J. Nanopart Res., 15 (2013) 1750. crossref(new window)

7.
Y. K. Kim, S. H. Ahn, K. Chung, Y. S. Cho and C. J. Choi: J. Mater. Chem., 22 (2012) 1516. crossref(new window)

8.
L. D. Trizio, M. Prato, A. Genovese, A. Casu, M. Povia, R, Simonutti, M. J. P. Alcocer, C. D. Andrea, F. Tassone and L. Manna: Chem. Mater., 24 (2012) 2400. crossref(new window)

9.
M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra: ECS J. Solid State Sci. Technol., 2 (2013) R3071.

10.
W. S. Song, J. H. Kim, J. H. Lee, H. S. Lee, Y. R. Do and H. Yang: J. Mater. Chem., 22 (2012) 21901. crossref(new window)

11.
S. Xu, J. Ziegler and T. Nann: J. Mater. Chem., 18 (2008) 2653. crossref(new window)

12.
E. Ryu, S. Kim, E. Jang, S. Jun, H. Jang, B. Kim and S. W. Kim: Chem. Mater., 21 (2009) 573. crossref(new window)

13.
L. Li, A. Pandey, D. J. Werder, B. P. Khanal, J. M. Pietryga and V. I. Klimov: J. Am. Chem. Soc., 133 (2011) 1176. crossref(new window)

14.
O. I. Micic, H. M. Cheong, H. Fu, A. Zunger, J. R. Sprague, A. Mascarenhas and A. J. Nozik: J. Phys. Chem. B 101 (1997) 4904. crossref(new window)

15.
Horst Weller: Semiconductor Nanocrystal Quantum Dots, A. L. Rogach (Ed.), Springer Wien New York (2008) 73.

16.
U. T. D. Thuy, A. Maurice, N. Q. Liem and P. Reiss: Dalton Trans., 42 (2013) 12606. crossref(new window)

17.
R. Xie, Z. Li and X. Peng: J. Am. Chem. Soc., 131 (2009) 15457. crossref(new window)

18.
D. Battaglia and C. Peng: Nano Lett., 2 (2002) 1027. crossref(new window)

19.
S. H. Ahn, G. C. Choi, Y. K. Baek, Y. K. Kim and Y. D. Kim: J. Korean Powder Metall. Inst., 19 (2012) 362 (Korean). crossref(new window)

20.
M. An, J. Cui, Q. He and L. Wang: J. Mater. Chem. B, 1 (2013) 1333. crossref(new window)

21.
D. G. Tong, D. M. Tang, W. Chu, G. F. Gu and P. Wu: J. Mater. Chem. A., 1 (2013) 6425. crossref(new window)