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Journal ArticleDOI

Controllable Shifts in Threshold Voltage of Top‐Gate Polymer Field‐Effect Transistors for Applications in Organic Nano Floating Gate Memory

TLDR
In this paper, a solution-processed poly[9,9-dioctylfluorenyl-2,7-diyl]-co-(bithiophene)] (F8T2) nano floating gate memory (NFGM) with a top-gate/bottom-contact device configuration is reported.
Abstract
Organic field-effect transistor (FET) memory is an emerging technology with the potential to realize light-weight, low-cost, flexible charge storage media. Here, solution-processed poly[9,9-dioctylfluorenyl-2,7-diyl]-co-(bithiophene)] (F8T2) nano floating gate memory (NFGM) with a top-gate/bottom-contact device configuration is reported. A reversible shift in the threshold voltage (V Th ) and reliable memory characteristics was achieved by the incorporation of thin Au nanoparticles (NPs) as charge storage sites for negative charges (electrons) at the interface between polystyrene and cross-linked poly(4-vinylphenol). The F8T2 NFGM showed relatively high field-effect mobility (μ FET ) (0.02 cm 2 V -1 s -1 ) for an amorphous semiconducting polymer with a large memory window (ca. 30 V), a high on/off ratio (more than 10 4 ) during writing and erasing with an operation voltage of 80 V of gate bias in a relatively short timescale (less than 1 s), and a retention time of a few hours. This top-gated polymer NFGM could be used as an organic transistor memory element for organic flash memory.

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Citations
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Journal ArticleDOI

Ultra-high mobility transparent organic thin film transistors grown by an off-centre spin-coating method

TL;DR: The growth of a highly aligned meta-stable structure of 2,7-dioctyl[1]benzothieno[3,2-b][1] Benzothiophene (C8-BTBT) is described from a blended solution of C8- BTBT and polystyrene by using a novel off-centre spin-coating method, indicating their potential for transparent, high-performance organic electronics.
Journal ArticleDOI

Polymer and Organic Nonvolatile Memory Devices

TL;DR: In this article, the role of π-conjugated materials in the operation of nonvolatile memory devices is reviewed and a review of the state of the art with respect to these target specifications is presented.
Journal ArticleDOI

Towards the development of flexible non-volatile memories.

TL;DR: The flash memories, resistive random access memories and ferroelectric random access memory/ferroelectric field-effect transistor memories (FeRAM/FeFET) are considered as promising candidates for next generation non-volatile memory device.
Journal ArticleDOI

Flexible organic transistor memory devices.

TL;DR: The flexible nonvolatile organic memory devices developed on the plastic substrates based on the organic thin-film transistors embedding self-assembled gold nanoparticles exhibited good programmable memory characteristics with respect to the program/erase operations, resulting in controllable and reliable threshold voltage shifts.
Journal ArticleDOI

Printed, Flexible, Organic Nano‐Floating‐Gate Memory: Effects of Metal Nanoparticles and Blocking Dielectrics on Memory Characteristics

TL;DR: In this article, the effects of using a blocking dielectric layer and metal nanoparticles (NPs) as charge-trapping sites on the characteristics of organic nano-floating-gate memory (NFGM) devices are investigated.
References
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Proceedings Article

Physics of semiconductor devices

S. M. Sze
Book

Semiconductor Material and Device Characterization

TL;DR: In this article, the authors present a characterization of the resistivity of a two-point-versus-four-point probe in terms of the number of contacts and the amount of contacts in the probe.
Journal ArticleDOI

The path to ubiquitous and low-cost organic electronic appliances on plastic

TL;DR: The future holds even greater promise for this technology, with an entirely new generation of ultralow-cost, lightweight and even flexible electronic devices in the offing, which will perform functions traditionally accomplished using much more expensive components based on conventional semiconductor materials such as silicon.
Journal ArticleDOI

Spectral properties and relaxation dynamics of surface plasmon electronic oscillations in gold and silver nanodots and nanorods

TL;DR: In this paper, the surface plasmon absorption of noble metal nanoparticles was studied and the effects of size, shape, and composition on the plasman absorption maximum and its bandwidth were discussed.
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