HOMO-controlled donor-acceptor contained polyimide for nonvolatile resistive memory device

2021 ◽  
Vol 186 ◽  
pp. 109020
Author(s):  
Ye Tian ◽  
Shiyang Zhu ◽  
Yizeng Di ◽  
Huiling Liu ◽  
Hongyan Yao ◽  
...  
Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 301
Author(s):  
Young Jin Choi ◽  
Jihyun Kim ◽  
Min Je Kim ◽  
Hwa Sook Ryu ◽  
Han Young Woo ◽  
...  

Donor–acceptor-type organic semiconductor molecules are of great interest for potential organic field-effect transistor applications with ambipolar characteristics and non-volatile memory applications. Here, we synthesized an organic semiconductor, PDPPT-TT, and directly utilized it in both field-effect transistor and non-volatile memory applications. As-synthesized PDPPT-TT was simply spin-coated on a substrate for the device fabrications. The PDPPT-TT based field-effect transistor showed ambipolar electrical transfer characteristics. Furthermore, a gold nanoparticle-embedded dielectric layer was used as a charge trapping layer for the non-volatile memory device applications. The non-volatile memory device showed clear memory window formation as applied gate voltage increases, and electrical stability was evaluated by performing retention and cycling tests. In summary, we demonstrate that a donor–acceptor-type organic semiconductor molecule shows great potential for ambipolar field-effect transistors and non-volatile memory device applications as an important class of materials.


Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 318
Author(s):  
Yang Li ◽  
Cheng Zhang ◽  
Zhiming Shi ◽  
Jingni Li ◽  
Qingyun Qian ◽  
...  

The explosive growth of data and information has increasingly motivated scientific and technological endeavors toward ultra-high-density data storage (UHDDS) applications. Herein, a donor−acceptor (D–A) type small conjugated molecule containing benzothiadiazole (BT) is prepared (NIBTCN), which demonstrates multilevel resistive memory behavior and holds considerable promise for implementing the target of UHDDS. The as-prepared device presents distinct current ratios of 105.2/103.2/1, low threshold voltages of −1.90 V and −3.85 V, and satisfactory reproducibility beyond 60%, which suggests reliable device performance. This work represents a favorable step toward further development of highly-efficient D−A molecular systems, which opens more opportunities for achieving high performance multilevel memory materials and devices.


2015 ◽  
Vol 1729 ◽  
pp. 53-58
Author(s):  
Brian L. Geist ◽  
Dmitri Strukov ◽  
Vladimir Kochergin

ABSTRACTResistive memory materials and devices (often called memristors) are an area of intense research, with metal/metal oxide/metal resistive elements a prominent example of such devices. Electroforming (the formation of a conductive filament in the metal oxide layer) represents one of the often necessary steps of resistive memory device fabrication that results in large and poorly controlled variability in device performance. In this contribution we present a numerical investigation of the electroforming process. In our model, drift and Ficks and Soret diffusion processes are responsible for movement of vacancies in the oxide material. Simulations predict filament formation and qualitatively agreed with a reduction of the forming voltage in structures with a top electrode. The forming and switching results of the study are compared with numerical simulations and show a possible pathway toward more repeatable and controllable resistive memory devices.


2015 ◽  
Vol 51 (75) ◽  
pp. 14179-14182 ◽  
Author(s):  
Hung-Chin Wu ◽  
Jicheng Zhang ◽  
Zhishan Bo ◽  
Wen-Chang Chen

Solution processable star-shaped donor–acceptor conjugated molecules are explored for the first time as charge storage materials for resistor-type memory devices with a triphenylamine (donor) core, and three 1.8-naphthalimide (acceptors) end-groups.


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.


2014 ◽  
Vol 53 (4) ◽  
pp. 602-614 ◽  
Author(s):  
Lei Dong ◽  
Han-Sheng Sun ◽  
Jau-Tzeng Wang ◽  
Wen-Ya Lee ◽  
Wen-Chang Chen

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