Electric Bistability in Pentacene Film-Based Transistor Embedding Gold Nanoparticles

Tseng, Chiao‐Wei; Tao, Yu‐Tai

doi:10.1021/ja904882m

Cited by 79 publications

(103 citation statements)

References 21 publications

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“…4) showed that the AuNPs grown on the template annealed at 400°C had a large size of 113 nm. The result was in agreement with the work by Tseng and Tao, who revealed that large AuNPs (5.5 nm) can store more charges compared with small AuNPs (3 and 1 nm) [37]. However, the existence of agglomerated AuNPs caused inconsistent memory properties that could not be considered as optimum memory.…”

Section: Resultssupporting

confidence: 91%

Growth of gold nanoparticles using aluminum template via low-temperature hydrothermal method for memory applications

Razak

Cheong

et al. 2015

J Mater Sci: Mater Electron

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Gold nanoparticles (AuNPs) were grown on a Si(100) substrate using a sacrificial hydrothermal method on Al template prepared by direct current (DC) sputtering, followed by thermal annealing. The effect of annealing temperature on the Al template was investigated. The morphology and phases of the grown AuNPs were observed by field-emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD), respectively. FESEM and XRD results revealed the uniform face-centered cubic structure of AuNPs with isolated 83 nm particle size and 1.48 9 10 13 m -2 area density; these properties were considered optimum for AuNPs formed on the nonannealed sputtered Al template. The electrical properties of AuNPs embedded in polymethylsilsesquioxane (PMSSQ) as an organic dielectric layer were studied using a semiconductor characterization system. A metal-insulatorsemiconductor device with embedded AuNPs was proven to exhibit memory effects. Optimum memory properties of AuNPs embedded in PMSSQ were obtained for AuNPs grown on the non-annealed sputtered Al template with the lowest threshold voltage of 2.4 V in I-V characteristics and 34 electrons stored per AuNP in C-V measurement.

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Section: Resultssupporting

confidence: 91%

Growth of gold nanoparticles using aluminum template via low-temperature hydrothermal method for memory applications

Razak

Cheong

et al. 2015

J Mater Sci: Mater Electron

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“…5,6 Colloidal gold based pregnancy test has been developed and went on the market in 1980s for the detection of human chorionic gonadotropin (hCG) in urine. 7−10 In this decade, GNPs have been reported to detect and quantify nucleic acid with high-sensitivity.…”

mentioning

confidence: 99%

Establishment of a Trimodality Analytical Platform for Tracing, Imaging and Quantification of Gold Nanoparticles in Animals by Radiotracer Techniques

et al. 2014

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This study aims to establish a (198)Au-radiotracer technique for in vivo tracing, rapid quantification, and ex vivo visualization of PEGylated gold nanoparticles (GNPs) in animals, organs and tissue dissections. The advantages of GNPs lie in its superior optical property, biocompatibility and versatile conjugation chemistry, which are promising to develop diagnostic probes and drug delivery systems. (198)Au is used as a radiotracer because it simultaneously emits beta and gamma radiations with proper energy and half-life; therefore, (198)Au can be used for bioanalytical purposes. The (198)Au-tagged radioactive gold nanoparticles ((198)Au-GNPs) were prepared simply by irradiating the GNPs in a nuclear reactor through the (197)Au(n,γ)(198)Au reaction and subsequently the (198)Au-GNPs were subjected to surface modification with polyethylene glycol to form PEGylated (198)Au-GNPs. The (198)Au-GNPs retained physicochemical properties that were the same as those of GNP before neutron irradiation. Pharmacokinetic and biodisposition studies were performed by intravenously injecting three types of (198)Au-GNPs with or without PEGylation into mice; the γ radiation in blood specimens and dissected organs was then measured. The (198)Au-radiotracer technique enables rapid quantification freed from tedious sample preparation and shows more than 95% recovery of injected GNPs. Clinical gamma scintigraphy was proved feasible to explore spatial- and temporal-resolved biodisposition of (198)Au-GNPs in living animals. Moreover, autoradiography, which recorded beta particles from (198)Au, enabled visualizing the heterogeneous biodisposition of (198)Au-GNPs in different microenvironments and tissues. In this study, the (198)Au-radiotracer technique facilitated creating a trimodality analytical platform for tracing, quantifying and imaging GNPs in animals.

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“…3,[7][8][9][10][11][12] Recently, it has been reported that graphene oxide (GO) sheets can act as nano-sized floating-gate as well, where the charge trapping is associated with the oxygenated functional groups as the GO-based devices show stronger memory effect compared with the reduced GO (rGO)-based ones. 13,14 In order to achieve a large memory window in OFET memories, which is defined as the threshold voltage (V T ) variance at ON (after programming) and OFF (after erasing) states, high density trapping sites separate from each other are desired.…”

mentioning

confidence: 99%

Organic field-effect transistor nonvolatile memories based on hybrid nano-floating-gate

Gao

She

Liu

et al. 2013

Applied Physics Letters

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High performance organic field-effect transistor nonvolatile memory is achieved by integrating gold nanoparticles and graphene oxide sheets as the hybrid nano-floating-gate. The device shows a large memory window of about 40 V, high ON/OFF ratio of reading current over 104, excellent programming/erasing endurance, and retention ability. The hybrid nano-floating-gate can increase the density of charge trapping sites, which are electrically separate from each other and thus suppress the stored charge leakage. The memory window is increased under illumination, and the results indicate that the photon-generated carriers facilitate the electron trapping but have almost no effect on the hole trapping.

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Electric Bistability in Pentacene Film-Based Transistor Embedding Gold Nanoparticles

Cited by 79 publications

References 21 publications

Growth of gold nanoparticles using aluminum template via low-temperature hydrothermal method for memory applications

Growth of gold nanoparticles using aluminum template via low-temperature hydrothermal method for memory applications

Establishment of a Trimodality Analytical Platform for Tracing, Imaging and Quantification of Gold Nanoparticles in Animals by Radiotracer Techniques

Organic field-effect transistor nonvolatile memories based on hybrid nano-floating-gate

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