Oxide p-type transistors are expected in realization of complementary circuits. Here, amorphous p-type NiO thin films were deposited on glass substrates by radio frequency (rf) sputtering at various growth temperatures and O-2/Ar flowratios. The influence of growth temperature and O-2/Ar flow ratio on the structural and electrical properties of amorphous NiO thin films has been systematically investigated by means of characterizations from X-ray diffraction, UV-vis spectroscopy, and electrical measurements. Pure Ar ambient with room temperature (RT) growth of NiO films shows the highest mobility of 1.07 cm(2)/Vs, and hole concentration of 2.78 x 10(17) cm(-3). Initial p-type NiO-based thin film transistors grown by magnetron sputtering demonstrated a mobility of 0.05 cm(2)/Vs, a threshold voltage (Vth) of -8.6 V, subthreshold swing (S) of 2.6 V/dec, the current on-off ratio of 10(3), respectively. (C) 2015 Elsevier B.V. All rights reserved.
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Seoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Nam, Dong-Woo
Cho, In-Tak
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Seoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Cho, In-Tak
Lee, Jong-Ho
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Seoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Lee, Jong-Ho
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Cho, Eou-Sik
Sohn, Joonsung
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Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Sohn, Joonsung
Song, Sang-Hun
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Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Song, Sang-Hun
Kwon, Hyuck-In
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Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South KoreaSeoul Natl Univ, Interuniv Semicond Res Ctr ISRC, Seoul 151742, South Korea
Kwon, Hyuck-In
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B,
2012,
30
(06):