수용액으로부터 표면 수식된 CdSe 나노 입자의 제조 및 특성

김신호; 이윤복; 김용진; 김양도; 김인배; Shin Ho Kim; Yoon Bok Lee; Yong Jin Kim; Yang Do Kim; In Bae Kim

Korean Journal of Materials Research, Vol.16, No.11, 663-667, November, 2006

DOI10.3740/MRSK.2006.16.11.663 Export Citation

수용액으로부터 표면 수식된 CdSe 나노 입자의 제조 및 특성

Preparation and Characterization of Surface Capped CdSe Nanoparticles from an Aqueous Solution

김신호, 이윤복¹, 김용진², 김양도 , 김인배^†

부산대학교 재료공학부
¹부산대학교 유전체 물성연구소
²한국기계연구원 재료기술연구소

Shin Ho Kim, Yoon Bok Lee¹, Yong Jin Kim², Yang Do Kim , and In Bae Kim^†

School of Materials Science and Engineering, Pusan National University, Korea
¹Research Center for Dielectric and Advanced Matter Physics, Pusan National University, Korea
²Materials Research Station, Korea Institute Of Machiery and Materials, Korea

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CTAB(cetyltrimethylammonium bromide)-capped CdSe nanoparticles were prepared by using a 4 : 1(v/v) distilled water-isopropyl alcohol mixture. The cadmium chloride and sodium selenosulfate were used as the cadmium and selenium source. By the analysis of XRD and XPS, the resultant particle was confirmed to be cubic CdSe phase. TEM image showed CdSe nanoparticles with empty core. The CTAB-capped sample showed an maximum absorption at 418nm, blue-shifting compared with bulk CdSe, which indicated stronger quantum confinement effect compared with uncapped sample. From FT-IR analysis, it was found that the presence of the new peaks in the range indicated the existence of chemical bonding between CTAB and surface of CdSe nanoparticles. Also TG analysis indicated that there were two weight-loss steps for the CTAB-capped CdSe nanoparticles. It was suggested that CTAB played a significant role in protecting CdSe nanoparticles.

Keywords:cetyltrimethylammonium bromide;Cadmium Selenide;nanoparticles with empty core

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[Related Articles]

[1] Trindade T, O'Brieu P, Pickett NL, Chem. Mater., 13, 3843 (2001)

[2] Adachi M, Tsukui S, Okuyama K, J. Appl, Phys., 42, 77 (2003)

[3] Hirai T, Nanba M, Komasawa I, J. Collid. sci., 358, 394 (2003)

[4] Murry CB, Norris DJ, BaWcndi MG, J. Am. Chem. Soc., 115, 8706 (1993)

[5] Li Y, Liao H, Fan Y, Li L, Qian Y, Mater. Chem. Phys., 58, 87 (1999)

[6] Brust M, Walker M, Bethell D, Schiffrin DJ, Whyman R, J. Chem. Soc, Comm., 801 (1994)

[7] Leif O, Brown LO, Hutchison JE, J. Am. Chem. Soc., 121, 882 (1999)

[8] Brus LE, J. Phys. Chem., 90, 2555 (1986)

[9] Umcmura J, Kawai T, Takenaka T, Mol. Cryst. Liq. Cryst., 112, 293 (1984)

[10] Hind AR, Bhargava SK, Grocott SC, Langmuir, 13(13), 3483 (1997)

[11] Nikoobakht B, El-Sayed MA, Langmuir, 17(20), 6368 (2001)