SIMULATING MOLECULAR OPTICAL PROPERTIES OF POLYIMIDE FOR NONVOLATILE RESISTIVE PHOTOMEMORY DEVICES
Received: 07th July 2023 Revised: 31st October 2023, 06th November 2023, 8th November 2023 Accepted: 10th July 2023
DOI:
https://doi.org/10.20319/mijst.2024.10.1326Keywords:
Nonvolatile, Photomemory, Polyimide, SimulationAbstract
In this study, the focus was on utilizing the polyimide (PI) thin film as a resistive conversion layer for organic polyimide-based resistive random-access memory (ReRAM) applications. We utilized the 3D molecular editor WebMO to manipulate and analyze the structures of Aromatic-PI and Quinoid-PI molecules. The molecular chain length, molecular weight, and HOMO/LUMO molecular orbitals were investigated to gain insights into the fundamental properties of PI molecular structures. The analysis revealed that the Quinoid-PI molecule exhibited a shorter molecular chain compared to Aromatic-PI, attributed to the inability of the cyclic structure in Quinoid-PI to maintain a planar conjugated structure, resulting in an uneven overall structure and reduced molecular chain length (Norcorss, 1988). The research results demonstrate that the optical energy gap of Aromatic-PI remains constant regardless of the number of molecular bonds, with a value of approximately 3.2661 eV. In contrast, for Quinoid-PI, the optical energy gap undergoes a significant decrease as the number of molecular bonds ranges from 1 to 5. As the bond count increases to 20~23, the change in the optical energy gap gradually diminishes, ultimately resulting in an optical energy gap of 0.6932 eV. This observation indicates that longer molecular chains composed of Aromatic-PI act as insulators, while Quinoid-PI transforms into a low-energy gap conductor.
References
Assadi, M. H., & Hanaor, D. A. (2013). Theoretical study on copper's energetics and magnetism in TiO2 polymorphs. Journal of Applied Physics, 113(23). https://doi.org/10.1063/1.4811539
Aswathy, N., & Sivamangai, N. (2021). Future nonvolatile memory technologies: challenges and applications. Paper presented at the 2021 2nd International Conference on Advances in Computing, Communication, Embedded and Secure Systems (ACCESS). https://doi.org/10.1109/ACCESS51619.2021.9563288
Gao, S., Song, C., Chen, C., Zeng, F., & Pan, F. (2012). Dynamic processes of resistive switching in metallic filament-based organic memory devices. The Journal of Physical Chemistry C, 116(33), 17955-17959. https://doi.org/10.1021/jp305482c
García, J. M., García, F. C., Serna, F., & de la Peña, J. L. (2010). High -performance aromatic polyamides. Progress in Polymer Science, 35(5), 623-686. https://doi.org/10.1016/j.progpolymsci.2009.09.002
Gouzman, I., Grossman, E., Verker, R., Atar, N., Bolker, A., & Eliaz, N. (2019). Advances in polyimide‐ based materials for space applications. Advanced Materials, 31(18), 1807738. https://doi.org/10.1002/adma.201807738
Ling, Q.-D., Chang, F.-C., Song, Y., Zhu, C.-X., Liaw, D.-J., Chan, D. S.-H. . . . Neoh, K.-G. (2006). Synthesis and dynamic random access memory behavior of a functional polyimide. Journal of the American Chemical Society, 128(27), 8732-8733. https://doi.org/10.1021/ja062489n
Meena, J. S., Sze, S. M., Chand, U., & Tseng, T.-Y. (2014). Overview of emerging nonvolatile memory technologies. Nanoscale research letters, 9, 1-33. https://doi.org/10.1186/1556-276X-9-526
Mu, B., Hsu, H.-H., Kuo, C.-C., Han, S.-T., & Zhou, Y. (2020). Organic small molecule-based RRAM for data storage and neuromorphic computing. Journal of Materials Chemistry C, 8(37), 12714-12738. https://doi.org/10.1039/D0TC02116D
Norcorss, B. E. (1988). Advanced organic chemistry: reactions mechanisms, and structure (Mach, Jerry). Journal of Chemical Education, 65(5), A139. https://doi.org/10.1021/ed065pA139.2
Ouyang, J., Chu, C.-W., Tseng, R. J.-H., Prakash, A., & Yang, Y. (2005). Organic memory device fabricated through solution processing. Proceedings of the IEEE, 93(7), 1287-1296. https://doi.org/10.1109/JPROC.2005.851235
Polik, W. F., & Schmidt, J. (2022). WebMO: Web‐based computational chemistry calculations in education and research. Wiley Interdisciplinary Reviews: Computational Molecular Science, 12(1), e1554. https://doi.org/10.1002/wcms.1554
Ren, W., Zhu, Y., Ge, J., Xu, X., Sun, R., Li, N. . . . Lu, J. (2013). Bistable memory devices with lower threshold voltage by extending the molecular alkyl-chain length. Physical Chemistry Chemical Physics, 15(23), 9212-9218. https://doi.org/10.1039/c3cp51290h
Sham, L. J., & Kohn, W. (1966). One-particle properties of an inhomogeneous interacting electron gas. Physical Review, 145(2), 561. https://doi.org/10.1103/PhysRev.145.561
Slesazeck, S., & Mikolajick, T. (2019). Nanoscale resistive switching memory devices: a review. Nanotechnology, 30(35), 352003. https://doi.org/10.1088/1361-6528/ab2084
WebMO. Retrieved from https://www.webmo.net/
Xiao, X., Kong, D., Qiu, X., Zhang, W., Liu, Y., Zhang, S., . . . Leng, J. (2015). Shape memory polymers with high and low temperature resistant properties. Scientific Reports, 5(1), 14137. https://doi.org/10.1038/srep14137
Yen, H.-J., & Liou, G.-S. (2012). Solution-processable triarylamine-based electroactive high performance polymers for anodically electrochromic applications. Polymer Chemistry, 3(2), 255-264. https://doi.org/10.1039/C1PY00346A
Yuan, L., Liu, S., Chen, W., Fan, F., & Liu, G. (2021). Organic memory and memristors: from mechanisms, materials to devices. Advanced Electronic Materials, 7(11), 2100432. https://doi.org/10.1002/aelm.202100432
Zan, H.-W., & Kao, S.-C. (2009). New organic phototransistor with bias-modulated photosensitivity and bias-enhanced memory effect. IEEE Electron Device Letters, 30(7), 721-723. https://doi.org/10.1109/LED.2009.2021867
Zhao, J., Zhang, M., Wan, S., Yang, Z., & Hwang, C. S. (2018). Highly flexible resistive switching memory based on the electronic switching mechanism in the Al/TiO2/Al/polyimide structure. ACS Applied Materials & Interfaces, 10(2), 1828-1835. https://doi.org/10.1021/acsami.7b16214
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright of Published Articles
Author(s) retain the article copyright and publishing rights without any restrictions.
All published work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
