کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1530147 | 1511989 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Short-channel nanowire transistor using a nanoporous crystal semiconductor 12CaO·7Al2O3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
12CaO·7Al2O3 (C12A7) is an electrical insulator with a band gap â¼7.5 eV. Contrary to conventional ultra-large gap oxides, electrical conductivity of C12A7 is controllable over a very wide range of 10â10 to 103 S cmâ1 by electron doping to a unique conduction band arising from 3-dimensionally connected sub-nanometer-sized cages constituting the crystal structure. This feature provides opportunities to develop a new electronic device. In this study, we fabricated side-gated transistors using C12A7:eâ nanowire (NW) channels. The carrier concentration in the as-doped NW channel (Ne > 1020 cmâ3) was too high to operate transistors, and therefore Ne was reduced by low-temperature oxidation and controlled to be â¼1014 cmâ3. Current modulation by gate voltage sweep was clearly observed in semiconducting C12A7:eâ NW channels at room temperature. Moreover, by reducing the channel length from â¼2 μm to â¼100 nm, the magnitude of the current modulation was drastically increased and the on-off current ratio larger than 102 was obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 173, Issues 1â3, 15 October 2010, Pages 37-40
Journal: Materials Science and Engineering: B - Volume 173, Issues 1â3, 15 October 2010, Pages 37-40
نویسندگان
Y. Nishio, K. Nomura, H. Yanagi, T. Kamiya, M. Hirano, H. Hosono,