Journal ArticleDOI
Organic Nonvolatile Memory Transistors for Flexible Sensor Arrays
Tsuyoshi Sekitani,Tomoyuki Yokota,Ute Zschieschang,Hagen Klauk,Siegfried Bauer,Ken Takeuchi,Makoto Takamiya,Takayasu Sakurai,Takao Someya +8 more
TLDR
A sensor matrix is realized that detects the spatial distribution of applied mechanical pressure and stores the analog sensor input as a two-dimensional image over long periods of time by integrating a flexible array of organic floating-gate transistors with a pressure-sensitive rubber sheet.Abstract:
Using organic transistors with a floating gate embedded in hybrid dielectrics that comprise a 2-nanometer-thick molecular self-assembled monolayer and a 4-nanometer-thick plasma-grown metal oxide, we have realized nonvolatile memory arrays on flexible plastic substrates. The small thickness of the dielectrics allows very small program and erase voltages (≤6 volts) to produce a large, nonvolatile, reversible threshold-voltage shift. The transistors endure more than 1000 program and erase cycles, which is within two orders of magnitude of silicon-based floating-gate transistors widely employed in flash memory. By integrating a flexible array of organic floating-gate transistors with a pressure-sensitive rubber sheet, we have realized a sensor matrix that detects the spatial distribution of applied mechanical pressure and stores the analog sensor input as a two-dimensional image over long periods of time.read more
Citations
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Journal ArticleDOI
Multilevel resistive memory switching in graphene sandwiched organic polymer heterostructure
TL;DR: In this article, a novel multilevel resistive switching was observed in trilayer stacked geometry composed of graphene nano flakes sandwiched between polyvinylidene fluoride layers fabricated by spin coating method, which are expected to fulfill the need of high density data storage memories.
Journal ArticleDOI
Thiophene and Selenophene Donor–Acceptor Polyimides as Polymer Electrets for Nonvolatile Transistor Memory Devices
Ying-Hsuan Chou,Nam-Ho You,Tadanori Kurosawa,Wen-Ya Lee,Tomoya Higashihara,Mitsuru Ueda,Wen-Chang Chen +6 more
TL;DR: In this paper, the nonvolatile memory characteristics of n-type N,N′-bis (2-phenylethyl)perylene-3,4:9,10-tetracarboxylic diimide (BPE-PTCDI) based organic field effect transistors (OFET) using the polyimide electrets of poly[2,5-bis(4-aminophenylenesulfanyl)selenophene-hexafluoroisopropylidenediphthalimide] (PI(APSP
Journal ArticleDOI
Photochromic transduction layers in organic memory elements
R. Clayton Shallcross,Philipp Zacharias,Anne Köhnen,Peter O. Körner,Eduard Maibach,Klaus Meerholz +5 more
TL;DR: Recent results for a lightemitting photochromic organic diode are highlighted in the context of multifunctional devices with the ability to simultaneously operate as multilevel memory, signage and display elements.
Journal ArticleDOI
Nanometer-Scale Oxide Thin Film Transistor with Potential for High-Density Image Sensor Applications
Sanghun Jeon,Sung-Ho Park,Ihun Song,Ji-Hyun Hur,Jae-Chul Park,Ho-Jung Kim,Sunil Kim,Sang-Wook Kim,Huaxiang Yin,U-In Chung,Eunha Lee,Chang-Jung Kim +11 more
TL;DR: A novel hybrid CIS architecture based on the combination of nanometer-scale amorphous In-Ga-Zn-O (a-IGZO) thin-film transistors (TFTs) and a conventional Si photo diode (PD) is proposed that aims to overcome the loss of quantum efficiency and image quality due to the continuous miniaturization of PDs.
Journal ArticleDOI
Controlling Crystallite Orientation of Diketopyrrolopyrrole‐Based Small Molecules in Thin Films for Highly Reproducible Multilevel Memory Device: Role of Furan Substitution
Yang Li,Hua Li,Hongfei Chen,Yu Wan,Najun Li,Qingfeng Xu,Jinghui He,Dongyun Chen,Lihua Wang,Jianmei Lu +9 more
TL;DR: In this paper, the effect of backbone planarity on the crystallite orientation was studied for a multilevel memory device with vertically arranged electrodes, and two diketopyrrolopyrrole-based small molecules (NI2PDPP and NI2FDPP) were synthesized with increasing planarity by furan substitution for phenyl rings.
References
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Ultralow-power organic complementary circuits
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Introduction to flash memory
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