메뉴 건너뛰기




Volumn 108, Issue 40, 2004, Pages 15599-15607

Formation and growth of copper nanoparticles from ion-doped precursor polyimide layers

Author keywords

[No Author keywords available]

Indexed keywords

COPPER; DEHYDRATION; DOPING (ADDITIVES); HEATING; NANOSTRUCTURED MATERIALS; RESINS; THERMAL EXPANSION; TRANSMISSION ELECTRON MICROSCOPY; X RAY ANALYSIS;

EID: 6444226767     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp0478559     Document Type: Article
Times cited : (78)

References (41)
  • 23
    • 6444233387 scopus 로고    scopus 로고
    • note
    • In the absence of oxygen, metallic Cu is not dissolved in hydrochloric acid solution.
  • 31
    • 0000402631 scopus 로고    scopus 로고
    • We have measured time course of UV-vis spectra at room temperature for films obtained from fully doped precursors (see Supporting Information, Figure S1). The results imply that the copper nanoparticles with smallest size studied were not so stable against oxidation because spectral shift occurred within few hours. This shift can occur through oxidation as reported by literature. See Clay, R. T.; Cohen R. E. New J. Chem. 1998, 22, 745.
    • (1998) New J. Chem. , vol.22 , pp. 745
    • Clay, R.T.1    Cohen, R.E.2
  • 32
    • 6444227312 scopus 로고    scopus 로고
    • note
    • The number of particles was counted in at least three regions and the average value was employed. Thickness of the thin cross section was determined by microtoming, however, it was further confirmed by AFM measurements of the bump between the film and the silicon substrate on which the cross sections were mounted. The average section thickness was observed to be 50 nm with an error of 5 nm for all samples.
  • 33
    • 6444235437 scopus 로고    scopus 로고
    • note
    • The low emission current was necessary for nanobeam EDX analysis to ensure the minimum dose for polyimide resins. No distinct damage was observed after the present analysis with an accumulation time of 180 s.
  • 34
    • 0003659464 scopus 로고
    • Springer-Verlag; Berlin
    • It is theoretically predicted that in general, increase in particle size and decrease in interparticle distance result in red shift of the plasmon peak position. In the present system, the interparticle distance between copper nanoparticles is almost constant so that particle-to-particle interaction is thought to be not so important. Therefore, we believe that the changes in the absorption spectra with annealing can be due to increase in copper nanoparticle size. For theoretical description, see Optical Properties of Metal Clusters, Kreibig, U., Vollmer, M., Eds.; Springer-Verlag; Berlin, 1995.
    • (1995) Optical Properties of Metal Clusters
    • Kreibig, U.1    Vollmer, M.2
  • 35
    • 6444227974 scopus 로고    scopus 로고
    • note
    • g of polyimide near the particle surface changes because of relatively small volume fraction of copper in polyimide (0.5-4%).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.