METAL-INSULATOR SEMICONDUCTOR AND METAL-INSULATOR METAL DEVICES DERIVED FROM ZIRCONIUM PHOSPHONATE THIN-FILMS

被引:41
作者
KEPLEY, LJ
SACKETT, DD
BELL, CM
MALLOUK, TE
机构
[1] Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin
基金
美国国家科学基金会;
关键词
D O I
10.1016/0040-6090(92)90958-E
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Metal-insulator-semiconductor and metal-insulator-metal (MIM) structures were fabricated by layer-by-layer adsorption of zirconium alkanediylbiphosphonates, Zr(O3PC(n)H2nPO3), n = 2, 4, 6, 8, 10, on silicon and gold surfaces. High frequency capacitance-voltage (C-V) measurements showed accumulation and depletion regions for 5-20 layer films grown on p-type silicon. Plots of layer capacitance vs. inverse thickness were linear and gave film dielectric constants of approximately 4.0. Films of thickness 25-30 nm grown on gold surfaces were also pinhole free, as evidenced by C-V and current-voltage measurements. Anomalously high values of epsilon/epsilon(0) for gold-metal phosphonate-gold MIM structures indicated that the evaporated gold top contact penetrated the insulating thin film to some extent.
引用
收藏
页码:132 / 136
页数:5
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