Bistable electrical switching and performance of a pentacene-based write once/read many memory device
https://doi.org/10.17586/2220-8054-2016-7-4-643-646
Abstract
In this paper, the performance of a pentacene-based write once/read many memory device is reported. The IV characteristics of a pentacene device deposited at 5 A˚ /s on an ITO-coated glass substrate was studied. This device showed a stable switching from ON to OFF state with an ON-OFF current ratio of nearly 103 and a retention time of 5 × 104 s with a switching threshold voltage of 3.9 V. The irreversible switching of this device makes it suitable for write once/read many memory devices. The structural studies of pentacene thin films on glass substrate were also done and the dependence of device performance on grain size is reported. Improved performance of this device due to the addition of C60 layer is also discussed.
About the Authors
A. G. GayathriIndia
Department of Physics
Shavige malleswara Hills, Kumaraswamy layout, Bangalore-560076
C. M. Joseph
India
Department of Physics
Shavige malleswara Hills, Kumaraswamy layout, Bangalore-560076
References
1. Ma L., Xu Q., Yang Y. Organic non-volatile memory by controlling the dynamic copper-ion concentration within organic layer. Appl. Phys. Lett., 2004, 84, P. 4908–4910.
2. Pyo S., Ma L., et al. Experimental study on thickness related electrical characteristics in organic/metal-nanocluster/organic systems. J. Appl. Phys., 2005, 98, P. 054303(1–6).
3. Ouyong J., Chu C.W., et al. Programmable polymer thin film and non-volatile memory device. Nature materials, 2004, 3, P. 918–922.
4. Konno K., Sakai H., Matsushima T., Murata H. An organic nonvolatile memory using space charge polarization of a gate dielectric. Thin solid films, 2009, 518, P. 534–536.
5. Alokik K., Shashi P., Manish C. Organic memory devices using C60 and insulating polymer. Mater. Res. Soc. Symp. Proc., 2005, 830, D7.2.1–D7.2.5.
6. Salaoru I., Paul S. Memory devices based on small organic molecules donor-acceptor system. Thin Solid Films, 2010, 519, P. 559–562.
7. Li Y., Chu Y., et al. Synthesis and memory characteristics of polyimides containing noncoplanar aryl pendant groups. Polymer, 2012, 53, P. 229–240.
8. Thanh Dao T., Matsushima T., Murata H. Organic nonvolatile memory transistors based on fullerene and an electron-trapping polymer. Org. Electronics, 2012, 13, P. 2709–2715.
9. Min Kim D., Ko Y.G., et al. Digital memory behaviors of aromatic polyimides bearing bis(trifluoromethyl)-and bithiophenyl-triphenylamine units. Polymer, 2012, 53, P. 1703–1710.
10. Ling Q.D., Liaw D.J., et al. Polymer memories: Bistable electrical switching and device performance. Polymer, 2007, 48, P. 5182–5201.
11. Wang L., Su Z., Wang C. Interfacial dipole in organic p/n junction to realize write-once/read-many-times memory. Org. Electronics, 2013, 14, P. 1163–1169.
12. Shi S., Peng J., Lin J., Ma D. Write-once read-many-times memory based on a single layer of Pentacene. Electron. Dev. Lett., 2009, 30, P. 343–345.
13. Bin L., Kao C.Y., Arthur J.E. Impact of electrode metals on a pentacene-based write-once read-many memory device. Letter/Synth. Met., 2010, 160, P. 2385–2388.
14. Puigdollers J., Voz C., et al. Pentacene thin films obtained by thermal evaporation in high vacuum. Thin solid films, 2003, 427, P. 367–370.
15. Girtan M., Dabos-Seignon S., Stanculescu A. On morphological, structural and electrical properties of vacuum deposited pentacene thin films. Vacuum, 2009, 83, P. 1159–1163.
16. Onlaor K., Tunhoo B., et al. Electrical bistable properties of copper phthalocyanine at different deposition rates. Solid-State Electronics, 2012, 72, P. 60–66.
17. Aruna P., Suresh K., Joseph C.M. Effect of fullerene doping on the electrical properties of P3HT/PCBM layers. Materials Science in Semiconductor Processing, 2015, 36, P. 7–12.
Review
For citations:
Gayathri A.G., Joseph C.M. Bistable electrical switching and performance of a pentacene-based write once/read many memory device. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(4):643-646. https://doi.org/10.17586/2220-8054-2016-7-4-643-646