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Novel Thermally Stable Single-Component Organic-Memory Cell Based on Oxotitanium Phthalocyanine Material

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10 Author(s)
Yongbian Kuang ; Inst. of Microelectron., Peking Univ., Beijing, China ; Ru Huang ; Yu Tang ; Wei Ding
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This letter reports a novel single-component organic-memory cell based on oxotitanium phthalocyanine (TiOPc) material. The device can achieve good resistive-switching performance such as a high on/off current ratio of about 104, large read signal window (4 V), and good retention (4 h at 1-V read voltage). The organic-memory cell exhibits excellent thermal stability above 525 K due to the thermal robustness of TiOPc, which indicates its potential for hybrid integration with CMOS technology at the back-end process and flexible electronics system. The current-voltage characteristics are comprehensively investigated, and a possible mechanism is proposed and well fitted with the experimental data. The results show that the trap-filling space-charge-limited conduction with TiOPc charge confinement and the electrochemical reaction at the Al/TiOPc interface can elucidate the switching behavior of the memory cell.

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Electron Device Letters, IEEE  (Volume:30 ,  Issue: 9 )