한국재료학회지 (Korean Journal of Materials Research)

  • 제16권11호
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  • Pages.663-667
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  • 2006
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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수용액으로부터 표면 수식된 CdSe 나노 입자의 제조 및 특성

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

  • 김신호 (부산대학교 재료공학부) ;
  • 이윤복 (부산대학교 유전체 물성연구소) ;
  • 김용진 (한국기계연구원 재료기술연구소) ;
  • 김양도 (부산대학교 재료공학부) ;
  • 김인배 (부산대학교 재료공학부)
  • Kim, Shin-Ho (School of Materials Science and Engineering, Pusan National University) ;
  • Lee, Yoon-Bok (Research Center for Dielectric and Advanced Matter Physics, Pusan National University) ;
  • Kim, Yong-Jin (Materials Research Station, Korea Institute of Machinery and Materials) ;
  • Kim, Yang-Do (School of Materials Science and Engineering, Pusan National University) ;
  • Kim, In-Bae (School of Materials Science and Engineering, Pusan National University)
  • 발행 : 2006.11.27
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초록

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 $850{\sim}1250cm^{-1}$ 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.

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