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Volumn 8, Issue 9, 2008, Pages 2674-2681

General control of transition-metal-doped GaN nanowire growth: Toward understanding the mechanism of dopant incorporation

Author keywords

[No Author keywords available]

Indexed keywords

CHLORINE COMPOUNDS; CHROMIUM; COBALT; CONCENTRATION (PROCESS); CRYSTAL IMPURITIES; ELECTRIC WIRE; GALLIUM ALLOYS; GALLIUM NITRIDE; IONS; IRON COMPOUNDS; MANGANESE; MANGANESE COMPOUNDS; NANOWIRES; SEMICONDUCTING GALLIUM; SYNTHESIS (CHEMICAL);

EID: 61549143046     PISSN: 15306984     EISSN: None     Source Type: Journal    
DOI: 10.1021/nl8009523     Document Type: Article
Times cited : (58)

References (58)
  • 35
    • 61549120190 scopus 로고    scopus 로고
    • The average doping concentrations were determined based on EDX measurements on at least ten different NWs for each individual sample synthesized (a total of minimum 30 NWs for each dopant ion, The EDX spectra were collected for 300 s to obtain good signal-to-noise ratio. All spectra were collected in the identical way and with the same instrumental parameters. Although EDX may not be as accurate in determining elemental compositions as some other analytical techniques, it is the only method available to us that allows an estimation of doping concentrations at the single NW level see also ref 33, Due to the deposition of dopant-related phases along with the NWs on the growth substrates, determination of the doping concentrations by more accurate bulk measurements would not give scientifically valid results
    • The average doping concentrations were determined based on EDX measurements on at least ten different NWs for each individual sample synthesized (a total of minimum 30 NWs for each dopant ion). The EDX spectra were collected for 300 s to obtain good signal-to-noise ratio. All spectra were collected in the identical way and with the same instrumental parameters. Although EDX may not be as accurate in determining elemental compositions as some other analytical techniques, it is the only method available to us that allows an estimation of doping concentrations at the single NW level (see also ref 33). Due to the deposition of dopant-related phases along with the NWs on the growth substrates, determination of the doping concentrations by more accurate bulk measurements would not give scientifically valid results.
  • 46
    • 61549122455 scopus 로고    scopus 로고
    • 2 data point in Figure 6b.
    • 2 data point in Figure 6b.
  • 52
    • 61549141143 scopus 로고    scopus 로고
    • 3-, as the oxalate ligand-field strength is closest in energy to that of NCS- in the spectrochemical series, that we were able to identify.
    • 3-, as the oxalate ligand-field strength is closest in energy to that of NCS- in the spectrochemical series, that we were able to identify.
  • 53
    • 61549106366 scopus 로고    scopus 로고
    • The error bars in Figure 6b were estimated based on the standard deviations of individual NW doping concentrations (y-axis, and of known Dq values (see ref 27) for similar coordination compounds of respective transition-metal ions x-axis, The uncertainties in doping concentrations estimated in this way are expected to be larger than the uncertainty due to instrumental accuracy
    • The error bars in Figure 6b were estimated based on the standard deviations of individual NW doping concentrations (y-axis), and of known Dq values (see ref 27) for similar coordination compounds of respective transition-metal ions (x-axis). The uncertainties in doping concentrations estimated in this way are expected to be larger than the uncertainty due to instrumental accuracy.
  • 54
    • 61549132683 scopus 로고    scopus 로고
    • -4x) + 0.199. This empirical fit is meant to provide an estimate of doping concentrations expected for different transition-metal ions in GaN NWs, prepared by the CVD method under similar reaction conditions, using particular dopant precursors.
    • -4x) + 0.199. This empirical fit is meant to provide an estimate of doping concentrations expected for different transition-metal ions in GaN NWs, prepared by the CVD method under similar reaction conditions, using particular dopant precursors.
  • 55
    • 0003689862 scopus 로고
    • Massalski, T. B, Ed, American Society for Metals: Metals Park, OH, Vols, and 2
    • Binary Alloy Phase Diagrams; Massalski, T. B., Ed.; American Society for Metals: Metals Park, OH, 1986; Vols. 1 and 2.
    • (1986) Binary Alloy Phase Diagrams , vol.1
  • 57
    • 61549112888 scopus 로고    scopus 로고
    • Physical Constants of Inorganic Compounds. In CRC Handbook of Chemistry and Physics, Internet Version 2005; Lide, D. R., Ed.; http://www.hbcpnetbase.com; CRC Press: Boca Raton, FL, 2005.
    • Physical Constants of Inorganic Compounds. In CRC Handbook of Chemistry and Physics, Internet Version 2005; Lide, D. R., Ed.; http://www.hbcpnetbase.com; CRC Press: Boca Raton, FL, 2005.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.