Abstract
Flexible memory cell array based on high mobility donor-acceptor diketopyrrolopyrrole polymer has been demonstrated. The memory cell exhibits low read voltage, high cell-to-cell uniformity and good mechanical flexibility, and has reliable retention and endurance memory performance. The electrical properties of the memory devices are systematically investigated and modeled. Our results suggest that the polymer blends provide an important step towards high-density flexible nonvolatile memory devices.
Highlights
The copolymers based on DPP show high ambipolar or unipolar semiconducting performance[47]
In addition to that DPP-TNT exhibits lower highest occupied molecular orbital (HOMO) values, which is important for making stable electronic devices
For the above mentioned reasons, we select this DPP-TNT polymer that exhibits stable performance in memory devices and such a multifunctional material can be used for various organic electronic devices
Summary
The copolymers based on DPP show high ambipolar or unipolar semiconducting performance[47]. Few reports on the electrical bistable properties of DPP based polymer can be found until now. The DPP-TNT with relative high mobility acts as the charge trapping center and carrier transporting medium, whereas the PMMA serves as the blocking matrix of the charge carriers. The electrical properties of the as-fabricated devices are systematically investigated and modeled. The blended polymers composites exhibit excellent stability and flexibility in data storage applications. The newly designed DPP-based polymer hybrid approach is quite beneficial for low-cost and large scale fabrication of memory devices and can create novel approaches for data storage technology in applications such as portable electronics, rollable displays and electronic artificial skin
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