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Nan J, Fan Y, Hu K, Gao Y, Chen F, Shen Y, Yang Y. Regulating the electrical resistive switching behaviors of polyimides through different steric hindrance substituents on 2,7-position of tetraphenyl fluorene diamines moieties. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221090670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Three novel polyimides (PI(TPF-Br BPDA), PI(TPF-Ph BPDA), and PI(TPF-Ph-OMe BPDA)) with tetraphenyl fluorene (TPF) were synthesized and tested. The laboratorial results showed that the constructed electronic devices exhibited different memory behaviors due to the different steric hindrance substituents (bromine atom, phenyl, and 3,5-dimethoxyphenyl) in 2,7-position of TPF molecule. The memorizers based on PI(TPF-Br BPDA) and PI(TPF-Ph BPDA) presented volatile dynamic random access memory (DRAM) feature with turn-on voltages of −2.39 and +1.45 V, as same as −1.71 and +1.74 V, separately. However, the PI(TPF-Ph-OMe BPDA) based apparatus exhibited non-volatile write-once read-many-times memory (WORM) behavior with turn-on voltage of −1.13 V, due to the more charge traps of 3,5-dimethoxyphenyl moieties and higher dipole moment. The switching mechanism was verified by quantum simulation of energy level, electrostatic potential (ESP) surface and dipole moment. These results indicated that the electrical memory performance of the synthesized TPF-based PIs could be adjusted by modifying the electron donor structure.
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Affiliation(s)
- Junyi Nan
- Applied Chemistry Department, College of Material Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, China
| | - Yingtao Fan
- Applied Chemistry Department, College of Material Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, China
| | - Kaitai Hu
- Applied Chemistry Department, College of Material Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, China
| | - Yang Gao
- Applied Chemistry Department, College of Material Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, China
| | - Fangyuan Chen
- Applied Chemistry Department, College of Material Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, China
| | - Yingzhong Shen
- Applied Chemistry Department, College of Material Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing, China
| | - Yanhua Yang
- School of Chemistry and Chemical Engineering, Kunming University, Yunnan, China
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Guo J, Geng J, Tian G, Ji D, Qi S, Wu D. Zinc Ion Triggered Controllable Binary/Ternary Memory Conversion Behaviors in Polyimides Containing Pendant Porphyrin Group. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2005659. [PMID: 33201592 DOI: 10.1002/smll.202005659] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Compared with typical binary polymeric memory materials, functional polymers with ternary memory performance possess significant potential to achieve ultra-high-density data storage. The reported ternary memory polymers are normally driven by dual-mechanism. However, the involved thermodynamically unstable mechanisms (field-induced conformation change or conductive filament formation/fracture) may result in the poor reliability of memory devices under high-temperature working atmosphere. Another strategy to realize ternary memory is introducing charge trapping/de-trapping mechanism by attaching charge trap atom/group at electron donor, which is proved not always effective. Moreover, the synergistic two mechanisms may have difficulty for clarifying the relationship between memory performance and chemical structures, which is the core issue of polymer memory materials. Besides, some multi-level memory materials need the cooperative participation of artificially setting compliance current, which is the extension of typical binary memory and may cause a more complicated technique and logic circuit. Herein, based on charge-transfer mechanism, a concise and effective strategy to realize ternary memory application is proposed. By inserting a Zn ion, the charge-transfer process occurring in electron donors can lead to the novel electrical tri-stability memory behaviors. This work can provide a novel idea for achieving reliable and intrinsic ternary high-density data storage applications.
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Affiliation(s)
- Jiacong Guo
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jianzhao Geng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Guofeng Tian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Deyang Ji
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
- Beijing National Laboratory for Molecular Sciences, Beijing, 100190, China
| | - Shengli Qi
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Beijing, 213164, China
| | - Dezhen Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Beijing, 213164, China
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Ye Q, Zhang B, Yang Y, Hu X, Shen Y. Binary/ternary memory behavior of organo-solubility polyimides containing flexible imide linkages and pendent triphenylamine or 3, 4, 5-trifluobenzene moieties. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109473] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yang Y, Lu H, Liu J, Shen Y. Synthesis and binary/ternary write-once read-many-times electrical memory behaviors of carbazole-based polyimides bearing flexible linkage segment. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.08.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Yang Y, Ding Z, Xia J, Zheng Y, Ding S, Shen Y. Nonvolatile write-once read-many-times memory behaviors of polyimides containing tetraphenyl fluorene core and the pendant triphenylamine or carbazole moieties. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yanhua Yang
- Applied Chemistry Department, School of Material Science & Engineering; Nanjing University of Aeronautics & Astronautics; Nanjing 210016 People's Republic of China
| | - Zijun Ding
- State Key Laboratory of ASIC and System, College of Microelectronics; Fudan University; Shanghai 200433 People's of Republic of China
| | - Jingcheng Xia
- State Key Laboratory of coordination chemistry, College of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 People's of Republic of China
| | - Youxuan Zheng
- State Key Laboratory of coordination chemistry, College of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 People's of Republic of China
| | - Shijin Ding
- State Key Laboratory of ASIC and System, College of Microelectronics; Fudan University; Shanghai 200433 People's of Republic of China
| | - Yingzhong Shen
- Applied Chemistry Department, School of Material Science & Engineering; Nanjing University of Aeronautics & Astronautics; Nanjing 210016 People's Republic of China
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Zhang QJ, Zhou JH, Li H, He JH, Li NJ, Xu QF, Chen DY, Li H, Lu JM. The Effect of Random and Block Copolymerization with Pendent Carbozole Donors and Naphthalimide Acceptors on Multilevel Memory Performance. Chem Asian J 2018; 13:853-860. [PMID: 29504714 DOI: 10.1002/asia.201701778] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/29/2018] [Indexed: 11/11/2022]
Abstract
Polymeric materials have been widely used in the fabrication of data-storage devices, owing to their unique advantages and defined conduction mechanisms. To date, the most-functional polymers that have been reported for memory devices were synthesized through random copolymerization, whilst there have been no reports regarding the memory effect of block polymers. Herein, we synthesized a random copolymer (PMCz8 -co-PMBNa2 ) and its corresponding block copolymer (PMCz8 -b-PMBNa2 ) to study the effect of the method of polymerization on the memory properties of the corresponding devices. Interestingly, both devices (ITO/PMCz8 -co-PMBNa2 /Al and ITO/PMCz8 -b-PMBNa2 /Al) exhibited ternary memory performance, with threshold voltages of -1.7 V/-3.3 V and -2.7 V/-3.8 V, respectively. However, based on comprehensive measurements, the memory properties of PMCz8 -co-PMBNa2 and PMCz8 -b-PMBNa2 were found to be owing to the operation of different conduction mechanisms, which resulted from different molecular stacking in the film state. Therefore, we expect that this work will be helpful for improving our understanding of the conduction mechanisms in polymer-based data-storage devices.
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Affiliation(s)
- Qi-Jian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Jia-Hui Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Hui Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Jing-Hui He
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Na-Jun Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Qing-Feng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Dong-Yun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
| | - Jian-Mei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou, Jiangsu Sheng, 215123, P. R. China
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Yang Y, Xia JC, Zheng Y, Shen Y, Gou G. Synthesis and non-volatile electrical memory characteristics of triphenylamine-based polyimides with flexibility segments. NEW J CHEM 2018. [DOI: 10.1039/c8nj04103b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two triphenylamine-based polyimides (PI(TPA-PMDA) and PI(TPA-BPDA)) containing a flexibility segments were prepared. The memory device of ITO/PI(TPA-PMDA)/Al exhibited write-once read-many-times (WORM) memory behavior, however, the memory device of PI(TPA-BPDA) demonstrated flash-type memory characteristics.
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Affiliation(s)
- Yanhua Yang
- Applied Chemistry Department
- School of Material Science and Engineering
- Nanjing University of Aeronautics and Astronautics
- Nanjing
- P. R. China
| | - Jing-Cheng Xia
- State Key Laboratory of coordination chemistry
- College of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Youxuan Zheng
- State Key Laboratory of coordination chemistry
- College of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Yingzhong Shen
- Applied Chemistry Department
- School of Material Science and Engineering
- Nanjing University of Aeronautics and Astronautics
- Nanjing
- P. R. China
| | - Gaozhang Gou
- Key Laboratory of Natural Pharmaceutical & Chemical Biology of Yunnan Province, College of Science, Honghe University, Mengzi
- P. R. China
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