Transparent and flexible capacitors based on nanolaminate Al2O3/TiO2/Al2O3

被引:18
作者
Zhang, Guozhen [1 ]
Wu, Hao [1 ]
Chen, Chao [1 ]
Wang, Ti [1 ]
Yue, Jin [1 ]
Liu, Chang [1 ]
机构
[1] Wuhan Univ, Sch Phys & Technol, Key Lab Artificial Micro & Nanostruct, Minist Educ, Wuhan 430072, Peoples R China
来源
NANOSCALE RESEARCH LETTERS | 2015年 / 10卷
关键词
Transparent capacitors; Atomic layer deposition; Flexible devices; THIN-FILM TRANSISTORS; ADVANCED CMOS DEVICES; CARBON NANOTUBE; DEPOSITION; OXIDES;
D O I
10.1186/s11671-015-0784-8
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Transparent and flexible capacitors based on nanolaminate Al2O3/TiO2/Al2O3 dielectrics have been fabricated on indium tin oxide-coated polyethylene naphthalate substrates by atomic layer deposition. A capacitance density of 7.8 f Gamma/mu m(2) at 10 KHz was obtained, corresponding to a dielectric constant of 26.3. Moreover, a low leakage current density of 3.9 x 10(-8) A/cm(2) at 1 V has been realized. Bending test shows that the capacitors have better performances in concave conditions than in convex conditions. The capacitors exhibit an average optical transmittance of about 70% in visible range and thus open the door for applications in transparent and flexible integrated circuits.
引用
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页数:5
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