Printed flexible memory devices using copper phthalocyanine

Lian, Keryn; Li, Rophina; Wang, Hui; Zhang, Jie; Gamota, Daniel

doi:10.1016/j.mseb.2010.01.020

Cited by 30 publications

(19 citation statements)

References 19 publications

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“…Recent studies based on organic materials for developing the RRAM device including small molecules,137 conjugated polymer,138 nonconjugated polymer,139 polymer nanocomposite blended with fullerenes,140 metal nanoparticles,141 semiconductor nanoparticles142 graphene and its derivatives143 (This part focus mainly on the polymer‐fullerenes composites, the polymer doped with inorganic materials will be discussed in the next part). Several fabrication results on organic resistive memory devices based on flexible substrates have been reported 16, 19, 144–151…”

Section: Flexible Resistance Random Access Memoriesmentioning

confidence: 99%

Towards the Development of Flexible Non‐Volatile Memories

2013

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Flexible non-volatile memories have attracted tremendous attentions for data storage for future electronics application. From device perspective, the advantages of flexible memory devices include thin, lightweight, printable, foldable and stretchable. The flash memories, resistive random access memories (RRAM) and ferroelectric random access memory/ferroelectric field-effect transistor memories (FeRAM/FeFET) are considered as promising candidates for next generation non-volatile memory device. Here, we review the general background knowledge on device structure, working principle, materials, challenges and recent progress with the emphasis on the flexibility of above three categories of non-volatile memories.

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Section: Flexible Resistance Random Access Memoriesmentioning

confidence: 99%

Towards the Development of Flexible Non‐Volatile Memories

2013

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“…Nevertheless, despite the good perspectives for TsPcbased electronics, the number of reports related to this topic is rather limited [6,[18][19][20][21][22][23], principally involving the production of devices using printing methods [22,23]. Most of applications exploiting the water solubility of TsPc molecules are based on layer-by-layer (LbL) assembly for sensors [19,[24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…LbL has also been used to fabricated TsPc-based field-effect transistors [18] and organic solar cells [19], whereas other deposition strategies include the electrodeposition of copper TsPc-based films for dye-sensitized solar cells [6] and spin coating of nickel, aluminum, cobalt, zinc, and copper TsPcs for organic field-effect transistors [21,27]. Regarding the publications using printed TsPcs, Lian et al produced memory devices using copper TsPc and poly(3,4-ehthylenedioxythiophene:polystyrene sulfonate) (PEDOT:PSS) onto plastic substrates [22], whereas Kim et al reported the preparation of several TsPcs inks for color filters in liquid crystal displays [23].…”

Section: Introductionmentioning

confidence: 99%

Effects of humidity on the electrical properties of thermal inkjet-printed films of copper tetrasulfonated phthalocyanine (CuTsPc) onto paper substrates

et al. 2014

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The effects of humidity on the electrical properties of thermal inkjet-printed copper tetrasulfonated phthalocyanine (CuTsPc) films onto paper substrates are reported. DC electrical measurements revealed that sample resistance decreases from 10 12 X in moderate vacuum to approximately 10 7 X at highly water-saturated atmosphere. This behavior is attributed to the creation of water pathways on the cellulose fibers that allow ionic species such as impurities, protons (H ? ), and dissociated Na ? ions from the CuTsPc molecules, to flow. The contribution of the CuTsPc molecules and their dissociated Na ? ions on the sample resistance was elucidated analyzing the electrical response of bare and printed paper substrates. An increase of relative humidity levels (RH) from 10 % to 40-45 % revealed an increase of current of four orders of magnitude for printed samples, whereas less than one order of magnitude was registered for bare paper substrates. Electrical measurements as a function of temperature have shown that moisture can inhibit the semiconducting properties of CuTsPc. Thermal gravimetric studies revealed that approximately 11 % of mass accounting to the presence of water is released above 70°C, the same temperature in which the sample recovers its dry-state semiconducting behavior. The semiconducting properties of CuTsPc can also be observed upon white light illumination, whereas the charge carrier extraction is governed by the RH level. These results point out the important role of humidity on the electrical properties of paper-based organic, electronic, and optoelectronic devices.

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“…Organic materials have been studied for years as active compounds for many electronic purposes as the fabrication of field-effect transistors (OFETs) [1][2][3] , photovoltaics (OPVs) [4][5][6] , sensors [7][8][9][10] , memories [11][12][13] , radio-frequency identification tags (RFIDs) 14,15 and light-emitting diodes (OLEDs) [16][17][18] . Such applications become even more interesting when solution-processed organic materials are used to produce low-cost and flexible devices, which can be achieved by printing techniques, for instance [19][20][21] .…”

Section: Introductionmentioning

confidence: 99%