New MEH-PPV Based Composite Materials for Rewritable Nonvolatile Polymer Memory Devices

2011 ◽  
Vol 1337 ◽  
Author(s):  
Mikhail Dronov ◽  
Ivan Belogorohov ◽  
Dmitry Khokhlov

ABSTRACTWe present the memory performance of devices with bistable electrical behavior based on MEH-PPV (Poly (1-methoxy-4-(2-ethylhexyloxy)-p-phenylenevinylene)) containing metal (Zn or Fe-Ni) particles. Another memory device based on aluminum phthalocyanine chloride (PcAlCl) added to the composite material reveals the photoinduced switching, in addition to the electrical one. Possible mechanisms for resistive switching are discussed.

2015 ◽  
Vol 1729 ◽  
pp. 119-124
Author(s):  
Mikhail Dronov ◽  
Maria Kotova ◽  
Ivan Belogorohov

ABSTRACTWe present the memory performance of devices with bistable electrical behavior based on polymer materials. We demonstrate that adding photosensitive particles to admixture allows us to control switching voltages and to observe photo-induced switching in addition to electrical one. From the properties of electrically-induced resistive switching and from the presence of light-induced switching we propose the necessity to consider crossover between to different switching mechanisms – filament formation and charge storage.


2017 ◽  
Vol 5 (37) ◽  
pp. 9799-9805 ◽  
Author(s):  
Guilin Chen ◽  
Peng Zhang ◽  
Lulu Pan ◽  
Lin Qi ◽  
Fucheng Yu ◽  
...  

A non-volatile resistive switching memory effect was observed in flexible memory device based on SrTiO3 nanosheets and polyvinylpyrrolidone composites.


2019 ◽  
Vol 7 (4) ◽  
pp. 843-852 ◽  
Author(s):  
Kui Zhou ◽  
Guanglong Ding ◽  
Chen Zhang ◽  
Ziyu Lv ◽  
Shenghuang Luo ◽  
...  

A memory device based on metal–oxo cluster-assembled materials demonstrates a redox-based resistive switching behaviour which is correlated with the migration of hydroxide ions with low activation energy.


2006 ◽  
Vol 16 (04) ◽  
pp. 959-975 ◽  
Author(s):  
YUEGANG ZHANG

The technology progress and increasing high density demand have driven the nonvolatile memory devices into nanometer scale region. There is an urgent need of new materials to address the high programming voltage and current leakage problems in the current flash memory devices. As one of the most important nanomaterials with excellent mechanical and electronic properties, carbon nanotube has been explored for various nonvolatile memory applications. While earlier proposals of "bucky shuttle" memories and nanoelectromechanical memories remain as concepts due to fabrication difficulty, recent studies have experimentally demonstrated various prototypes of nonvolatile memory cells based on nanotube field-effect-transistor and discrete charge storage bits, which include nano-floating gate memory cells using metal nanocrystals, oxide-nitride-oxide memory stack, and more simpler trap-in-oxide memory devices. Despite of the very limited research results, distinct advantages of high charging efficiency at low operation voltage has been demonstrated. Single-electron charging effect has been observed in the nanotube memory device with quantum dot floating gates. The good memory performance even with primitive memory cells is attributed to the excellent electrostatic coupling of the unique one-dimensional nanotube channel with the floating gate and the control gate, which gives extraordinary charge sensibility and high current injection efficiency. Further improvement is expected on the retention time at room temperature and programming speed if the most advanced fabrication technology were used to make the nanotube based memory cells.


Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7535
Author(s):  
Ghulam Dastgeer ◽  
Amir Muhammad Afzal ◽  
Jamal Aziz ◽  
Sajjad Hussain ◽  
Syed Hassan Abbas Jaffery ◽  
...  

Two-terminal, non-volatile memory devices are the fundamental building blocks of memory-storage devices to store the required information, but their lack of flexibility limits their potential for biological applications. After the discovery of two-dimensional (2D) materials, flexible memory devices are easy to build, because of their flexible nature. Here, we report on our flexible resistive-switching devices, composed of a bilayer tin-oxide/tungsten-ditelluride (SnO2/WTe2) heterostructure sandwiched between Ag (top) and Au (bottom) metal electrodes over a flexible PET substrate. The Ag/SnO2/WTe2/Au flexible devices exhibited highly stable resistive switching along with an excellent retention time. Triggering the device from a high-resistance state (HRS) to a low-resistance state (LRS) is attributed to Ag filament formation because of its diffusion. The conductive filament begins its development from the anode to the cathode, contrary to the formal electrochemical metallization theory. The bilayer structure of SnO2/WTe2 improved the endurance of the devices and reduced the switching voltage by up to 0.2 V compared to the single SnO2 stacked devices. These flexible and low-power-consumption features may lead to the construction of a wearable memory device for data-storage purposes.


2019 ◽  
Vol 7 (11) ◽  
pp. 3315-3321 ◽  
Author(s):  
Qiqi Lin ◽  
Shilei Hao ◽  
Wei Hu ◽  
Ming Wang ◽  
Zhigang Zang ◽  
...  

A physically transient non-volatile memory device made of keratin exhibits great resistive switching performance.


2008 ◽  
Vol 54 ◽  
pp. 480-485 ◽  
Author(s):  
Dominic Prime ◽  
Shashi Paul

Organic and polymer based electronic devices are currently the subject of a great deal of scientific investigation and development. This interest can be attributed to the low cost, easy processing steps and simple device structures of organic electronics when compared to conventional silicon and inorganic electronics. In the field of organic electronic memories, non-volatile, rewritable polymer memory devices (PMDs) have shown promise as a future technology where cost and compatibility with flexible substrates are important factors. In this paper PMDs based on active layers containing an admixture of polystyrene, gold nanoparticles and 8-hydroxyquinoline will be presented, showing the devices’ electrical characteristics and memory performance attributes, and where possible discussing possible mechanisms of operation.


Nanoscale ◽  
2015 ◽  
Vol 7 (46) ◽  
pp. 19579-19585 ◽  
Author(s):  
Peng Wang ◽  
Quan Liu ◽  
Chun-Yu Zhang ◽  
Jun Jiang ◽  
Li-Hua Wang ◽  
...  

Organic/inorganic hybrid (Au@air@TiO2-h/P3HT) memory devices showed variable memory performance when tuning the microspheres content.


2014 ◽  
Vol 95 ◽  
pp. 107-112
Author(s):  
Z.H. Alhalafi ◽  
Shashi Paul

In this paper, a non-volatile memory device based on a blend of metal oxides (Known as NiO) and polymer has been investigated. These devices have shown to display memory effects; a marked difference in electrical conductivity between the ‘on’ and ‘off’ states. However, the exact mechanism under-pinning these two conductivities states are not very clear. The structures used in investigation are metal-admixture-metal (MAM) and metal-insulator-semiconductor (MIS) devices. Also, glass and p-types silicon (100 orientations) with a pre-prepared Ohmic back contact were used for the MAM and MIS substrates respectively. This work will address some of the questions in regard to the electrical bistability shown by polymer memory devices.


RSC Advances ◽  
2019 ◽  
Vol 9 (22) ◽  
pp. 12436-12440 ◽  
Author(s):  
Bolin Guo ◽  
Bai Sun ◽  
Wentao Hou ◽  
Yuanzheng Chen ◽  
Shouhui Zhu ◽  
...  

This study suggests that keratin is a potential biomaterial for the preparation of memory devices with non-toxicity, degradability and sustainability.


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