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Pan Y, Liang X, Liang Z, Yao R, Ning H, Zhong J, Chen N, Qiu T, Wei X, Peng J. Application of Solution Method to Prepare High Performance Multicomponent Oxide Thin Films. MEMBRANES 2022; 12:membranes12070641. [PMID: 35877844 PMCID: PMC9320365 DOI: 10.3390/membranes12070641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 02/04/2023]
Abstract
Capacitors play an increasingly important role in hybrid integrated circuits, while the MIM capacitors with high capacitance density and small thickness can meet the needs of high integration. Generally speaking, the films prepared with a single metal oxide dielectric often achieve a breakthrough in one aspect of performance, but dielectric layers are required to be improved to get better performance in leakage current, capacitance density, and transmittance simultaneously in modern electronic devices. Therefore, we optimized the performance of the dielectric layers by using multiple metal oxides. We combined zirconia, yttria, magnesium oxide, alumina, and hafnium oxide with the solution method to find the best combination of these five metal oxides. The physical properties of the multi-component films were measured by atomic force microscopy (AFM), ultraviolet-visible spectrophotometer, and other instruments. The results show that the films prepared by multi-component metal oxides have good transmittance and low roughness. The thicknesses of all films in our experiment are less than 100 nm. Then, metal–insulator–metal (MIM) devices were fabricated. In addition, we characterized the electrical properties of MIM devices. We find that multi-component oxide films can achieve good performances in several aspects. The aluminum-magnesium-yttrium-zirconium-oxide (AMYZOx) group of 0.6 M has the lowest leakage current density, which is 5.03 × 10−8 A/cm2 @ 1.0 MV/cm. The hafnium-magnesium-yttrium-zirconium-oxide (HMYZOx) group of 0.8 M has a maximum capacitance density of 208 nF/cm2. The films with a small thickness and a high capacitance density are very conducive to high integration. Therefore, we believe that multi-component films have potential in the process of dielectric layers and great application prospects in highly integrated electronic devices.
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Affiliation(s)
- Yaru Pan
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
| | - Xihui Liang
- Institute of Semiconductors, Guangdong Academy of Sciences, Guangzhou 510650, China;
| | - Zhihao Liang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
| | - Rihui Yao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
| | - Honglong Ning
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
- Correspondence: (H.N.); (T.Q.)
| | - Jinyao Zhong
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
| | - Nanhong Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
| | - Tian Qiu
- Department of Intelligent Manufacturing, Wuyi University, Jiangmen 529020, China
- Correspondence: (H.N.); (T.Q.)
| | - Xiaoqin Wei
- Southwest Institute of Technology and Engineering, Chongqing 400039, China;
| | - Junbiao Peng
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China; (Y.P.); (Z.L.); (R.Y.); (J.Z.); (N.C.); (J.P.)
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Mabrouk MM, Hamed NA, Mansour FR. Physicochemical and electrochemical methods for determination of critical micelle concentrations of surfactants: a comprehensive review. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02891-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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