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Volumn 10, Issue 8, 2010, Pages 3028-3036

Epitaxial CdSe-Au nanocrystal heterostructures by thermal annealing

Author keywords

annealing; cadmium selenide; epitaxy; gold; hybrid nanocrystals; interface; nanocrystals; Nanorods; orientation relationship; self assembly

Indexed keywords

CADMIUM SELENIDE; CADMIUM SELENIDES; EPITAXY; HYBRID NANOCRYSTALS; ORIENTATION RELATIONSHIP;

EID: 77955589733     PISSN: 15306984     EISSN: 15306992     Source Type: Journal    
DOI: 10.1021/nl101482q     Document Type: Article
Times cited : (142)

References (61)
  • 30
    • 77955578903 scopus 로고    scopus 로고
    • note
    • Most ripening processes could be followed real-time under exposure of the electron beam in the TEM, whereby the configurations formed in the examined areas were the same as configurations present elsewhere on the microheater chip (because the electron beam is small, and the membranes far apart, “freshâ€? areas could be checked frequently). Only in the case of the separated Au dots and CdSe rods (Fig. 1 g,h), the electron beam irradiation apparently hampered the formation (nucleation) of new Au tips. So although this experiment is well reproducible both in the TEM and the SEM, no before/after images of the same area could be obtained. Possible explanations could be the irradiation-induced carburization of ligands that hampers changes (this seems unlikely because no such problems were encountered with the other nanostructures) or possibly the electron beam generates charging effects (electron-hole pairs in the CdSe rods or charge pile-up at the Au dots) which hampers the formation of new Au tips at the polar-CdSe/Au interface.
  • 32
    • 77955565573 scopus 로고    scopus 로고
    • A control experiment, in which a substrate with only Au spherical nanocrystals was heated, is shown in Figure S1 of the Supporting Information.
    • A control experiment, in which a substrate with only Au spherical nanocrystals was heated, is shown in Figure S1 of the Supporting Information.
  • 42
    • 77955587774 scopus 로고    scopus 로고
    • See also the Supporting Movie M5 of the Supporting Information for further proofs on the stability of the CdSe/Au interface during the temperature-induced sublimation of the CdSe domain.
    • See also the Supporting Movie M5 of the Supporting Information for further proofs on the stability of the CdSe/Au interface during the temperature-induced sublimation of the CdSe domain.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.