Threshold voltage shifting for memory and tuning in printed transistor circuits

Dhar, Bal Mukund; Ozgun, Recep; Dawidczyk, Tom; Andreou, Andreas G.; Katz, Howard E.

doi:10.1016/j.mser.2010.11.001

Cited by 42 publications

(43 citation statements)

References 173 publications

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“…OTFTs with nonvolatile memory effects are one potential option based on their nondestructive readout and single transistor architectural compatibility for easily integrated devices. [297][298][299][300][301] Organic thin film transistor (OTFT)-based nonvolatile memory devices using the hybrid nanocomposites of semiconducting poly(9,9-dioctylfluorenealt-bithiophene) (F8T2) and ligand-capped Au nanoparticles (NPs), thereby serving as a charge storage medium have been fabricated (Fig. 23).…”

Section: -287mentioning

confidence: 99%

Review—Organic-Inorganic Hybrid Functional Materials: An Integrated Platform for Applied Technologies

Mir

Nagahara

Thundat

et al. 2018

J. Electrochem. Soc.

315

156

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Hybrid functional materials, constituting both inorganic and organic components, are considered potential platforms for applications in extremely diverse fields such as optics, micro-electronics, transportation, health, energy, energy storage, diagnosis, housing, environment and the highly relevant area is Internet of Things (IoT). Material properties of hybrid materials can be tuned by modification of the composition on the molecular scale to produce smart materials. Cross-cutting approaches, to synergistically couple molecular engineering and processing allows to tailor complex hybrid systems of various shapes with perfect control over size, composition, functionality, and morphology. The detailed description and discussion of variety of hybrid functional organicinorganic materials and their contribution in the designing of specific modern technologies is the prime focus of this review. There is an enormous demand for hybrid materials to provide technological breakthroughs with the most sought after being the enabling of the IoT. Interest in the field of IoT will witness exponential growth over the next decade as markets realize the true potential of realtime data acquisition for various entertainment, knowledge dissemination, defense, environmental, and healthcare applications. Many of the well-established materials, such as metals, 1 ceramics, 2-4 or plastics 5,6 cannot fulfill all technological desires for the various new applications. In addition to the early interest in structural hybrid materials based on carbon-silicon networks, many recent efforts have centered on the design of functional hybrid materials which harness the chemical activity of their components. This approach has been successfully used in recent years in the design of hybrid polymers 7 with special emphasis on structural hybrid materials based on mixed silicon-carbon networks prepared by sol-gel methods [8][9][10][11][12] which can also entrap additional active species. 13 In this field the stakes are high and scientists aim at producing structural materials with properties between those of inorganic glasses and organic polymers.8 But the expectations go beyond mechanical strength and thermal and chemical stability. These new materials are also sought for improved optical, 14-17 and electrical 18,19 properties, luminescence, 12,20-25 ionic conductivity, [26][27][28] and selectivity, 29-32 as well as chemical [33][34][35] or biochemical 36-38 activity. Chemical activity is of core importance in functional materials. Sensors, selective membranes, all sorts of electrochemical devices, from actuators to batteries or supercapacitors, supported catalysts or photoelectrochemical energy conversion cells are some important devices based on hybrid functional materials.Hybridization is a multifaceted strategy. In some cases, conducting organic polymers act just as a solid polymeric support for active species, whereas in other hybrid systems the activity of organic and inorganic species combines to reinforce or modify each other. But in every case ...

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Section: -287mentioning

confidence: 99%

Review—Organic-Inorganic Hybrid Functional Materials: An Integrated Platform for Applied Technologies

Mir

Nagahara

Thundat

et al. 2018

J. Electrochem. Soc.

315

156

View full text Add to dashboard Cite

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“…Clearly, when the materials are better matched in mobility and threshold voltage, the switching occurs closer to the half‐way point between zero and V dd . This idea is the basis of our previous work using individual OFET threshold‐voltage tuning through charged dielectrics to shift the switching voltage 18, 19. Analytes can affect the switching voltage of inverters made from sensitive semiconductors by changing the threshold voltages and/or mobilities of either or both semiconductors.…”

Section: Introductionmentioning

confidence: 99%

“…Other technological developments in the organic electronics community would be of additional use for sensors. For example, advances in inkjet‐printing technology and threshold‐voltage tuning by the printing of charged dielectrics18 should enable high‐throughput production of organic‐based digital sensors and their integration with organic memory transistors31 and silicon signal processors.…”

Section: Introductionmentioning

confidence: 99%

Digital-Inverter Amine Sensing via Synergistic Responses by n and p Organic Semiconductors

et al. 2011

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Chemiresistors and sensitive OFETs have been substantially developed as cheap, scalable, and versatile sensing platforms. While new materials are expanding OFET sensing capabilities, the device architectures have changed little. Here we report higher order logic circuits utilizing OFETs sensitive to amine vapors. The circuits depend on the synergistic responses of paired p- and n-channel organic semiconductors, including an unprecedented analyte-induced current increase by the n-channel semiconductor. This represents the first step towards ‘intelligent sensors’ that utilize analog signal changes in sensitive OFETs to produce direct digital readouts suitable for further logic operations.

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“…Among many kinds of memory devices, flash memories which use a floating gate structure are the most widely used151617. To improve the device reliability, the recent trend of designing charge trapping layer for flash memory is to store data in discrete charge trapping cites such as metal or semiconductor nanoparticles181920212223.…”

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confidence: 99%

Nonvolatile multilevel data storage memory device from controlled ambipolar charge trapping mechanism

Zhou

Han

Sonar

et al. 2013

Sci Rep

113

100

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The capability of storing multi-bit information is one of the most important challenges in memory technologies. An ambipolar polymer which intrinsically has the ability to transport electrons and holes as a semiconducting layer provides an opportunity for the charge trapping layer to trap both electrons and holes efficiently. Here, we achieved large memory window and distinct multilevel data storage by utilizing the phenomena of ambipolar charge trapping mechanism. As fabricated flexible memory devices display five well-defined data levels with good endurance and retention properties showing potential application in printed electronics.

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Threshold voltage shifting for memory and tuning in printed transistor circuits

Cited by 42 publications

References 173 publications

Review—Organic-Inorganic Hybrid Functional Materials: An Integrated Platform for Applied Technologies

Review—Organic-Inorganic Hybrid Functional Materials: An Integrated Platform for Applied Technologies

Digital-Inverter Amine Sensing via Synergistic Responses by n and p Organic Semiconductors

Nonvolatile multilevel data storage memory device from controlled ambipolar charge trapping mechanism

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