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Volumn 111, Issue 34, 2007, Pages 12504-12507

Origin of gate hysteresis in carbon nanotube field-effect transistors

Author keywords

[No Author keywords available]

Indexed keywords

AMMONIA; ANNEALING; CARBON NANOTUBES; DESORPTION; HYSTERESIS; LOW TEMPERATURE EFFECTS; SILICA; ULTRAHIGH VACUUM; WATER;

EID: 34548552835     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp074692q     Document Type: Article
Times cited : (118)

References (30)
  • 22
    • 0033525818 scopus 로고    scopus 로고
    • The actual gas dosage is believed to have exceeded 3 Langmuirs. Under the experimental conditions, the water-ice layer must have been deposited as a thin porous film, thus not providing a good passivation over the oxide surface. About the morphology of water ice, see the following: Stevenson, K. P.; Kimmel, G. A.; Dohnálek, Z.; Smith, R. S.; Kay, B. D. Science 1999, 283, 1505-1507.
    • The actual gas dosage is believed to have exceeded 3 Langmuirs. Under the experimental conditions, the water-ice layer must have been deposited as a thin porous film, thus not providing a good passivation over the oxide surface. About the morphology of water ice, see the following: Stevenson, K. P.; Kimmel, G. A.; Dohnálek, Z.; Smith, R. S.; Kay, B. D. Science 1999, 283, 1505-1507.
  • 23
    • 23044450796 scopus 로고    scopus 로고
    • In fact, it did not cause any remarkable changes in G-V g curves. This lack of ammonia response coincides with results from previous studies: charge transfer from ammonia to CNT is negligible, and chemisorption or charge doping of ammonia to CNT only occurs via other preadsorbed species such as oxygen or water. For references, see refs 9 and 10 and the following: Feng, X, Irle, S, Witek, H, Morokuma, K, Vidic, R, Borguet, E. J. Am. Chem. Soc. 2005, 127, 10533-10538
    • g curves. This lack of ammonia response coincides with results from previous studies: charge transfer from ammonia to CNT is negligible, and chemisorption or charge doping of ammonia to CNT only occurs via other preadsorbed species such as oxygen or water. For references, see refs 9 and 10 and the following: Feng, X.; Irle, S.; Witek, H.; Morokuma, K.; Vidic, R.; Borguet, E. J. Am. Chem. Soc. 2005, 127, 10533-10538.
  • 25
    • 0001130978 scopus 로고    scopus 로고
    • Lorenz, R. D. Icarus 1998, 136, 344-348.
    • (1998) Icarus , vol.136 , pp. 344-348
    • Lorenz, R.D.1
  • 30
    • 34548557821 scopus 로고    scopus 로고
    • This tendency agrees with the results given in Figure 3b of ref 2 which imply that the trapped screening charges causing hysteresis in CNFETs without surface passivation are mainly positive. Figure la and c of ref 12, in which current-gate voltage (I-Vg) curves obtained with 0 V-based, short-pulsed Vg are located closer to the curves obtained with decreasing Vg sweeps than to the curves with increasing Vg sweeps, also conform to the tendency of positive charging
    • g sweeps, also conform to the tendency of positive charging.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.