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    Tytuł:
    CNTFET Based OTRA and its Application as Inverse Low Pass Filter
    Autorzy:
    Prasad, Dinesh
    Tayal, Divyam
    Yadav, Ayesha
    Singla, Laxya
    Haseeb, Zainab
    Powiązania:
    https://bibliotekanauki.pl/articles/227047.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    carbon nanotube (CNT)
    Operational Transresistance Amplifier (OTRA)
    Opis:
    Operational Transresistance Amplifier (OTRA) has been a topic of great interest recently. OTRA has proved itself to be an appropriate device for the analog applications. As MOS scaling suffers from various problems, carbon nanotube field effect transistor (CNTFET) has came into light as one of the brightest alternative for FET (Field Effect Transistors) based devices. This work has introduced a new CNTFET based OTRA which is capable of realising inverse low pass filter using two OTRAs and few passive elements. CNTFET based OTRA has been designed and simulated at 10nm technology node. The working ability of the designed model has been conformed using HSPICE simulation. It is compared with conventional CMOS based OTRA. The comparative analysis has revealed improvement in various performance parameters. The paper also presents how change in number of carbon nanotube in CNTFETs in OTRA circuit affects the transresistance gain and input impedance. The optimized results are also discussed to improve transresistance gain and input impedance. The paper also dealt with the realisation of inverse low pass filter using proposed CNTFET based OTRA.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 4; 665-670
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Czy wkoło nas wyrośnie nanorurkowy las?
    Will a nanotube forest grow around us?
    Autorzy:
    Terzyk, A.P.
    Kruszka, B.
    Wiśniewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/171853.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    las nanorurek węglowych
    metoda CVD w obecności pary wodnej
    Super Wzrost CVD
    nanorurka węglowa
    carbon nanotube forest
    water-assisted CVD method
    Super Growth CVD
    CNT
    Opis:
    In this study we describe the methods of preparation of a new class of carbon nanotubes i.e. pure and highly organized materials: carbon nanotube forests [3, 5]. High yield of this new method is caused by an increase in catalytic activity and life of used catalysts mainly due to an addition of steam to the reaction. The assistance of steam during the synthesis (the method is called "Super Growth Chemical Vapor Deposition"[3, 5]) leads to SWNTs forests having the height up to 4.0 mm. Such result is 100 times better in terms of efficiency than the previously reported records. Such synthesized, aligned materials are extremely high, super-highly dense and vertical-standing [Figs 2–4]. Moreover, this method leads to the purest SWNT material (over 99.98%) ever made. SWNTs are very easily separable from the catalysts and could be used without further purification. Highly efficient growth of SWNTs and DWNTs forests on conducting metal foils is also discussed. It is shown that such foils made of Ni-based alloys with Cr or Fe are excellent materials for the synthesis [3, 5, Fig. 3]. Under conditions where steam is added predominantly SWNTs (having the diameter 2.8 nm) are formed. Synthesis with an addition of oxygencontaining aromatics as growth enhancers is also described [figs. 16,17]. These enhancers caused the grow of CNTs having different diameters and wall numbers under identical reaction conditions. Creation of double-walled carbon nanotubes with populations as high as 84% and with the average size of 5.4 nm is possible with an insertion of methyl-benzoate. The creation of multi-walled CNTs is possible with an addition of benzaldehyde [9, Fig. 16].
    Źródło:
    Wiadomości Chemiczne; 2011, 65, 1-2; 111-134
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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