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- Title
Conception of Stretchable Resistive Memory Devices Based on Nanostructure-Controlled Carbohydrate- block-Polyisoprene Block Copolymers.
- Authors
Hung, Chih‐Chien; Chiu, Yu‐Cheng; Wu, Hung‐Chin; Lu, Chien; Bouilhac, Cécile; Otsuka, Issei; Halila, Sami; Borsali, Redouane; Tung, Shih‐Huang; Chen, Wen‐Chang
- Abstract
It is discovered that the memory-type behaviors of novel carbohydrate- block-polyisoprene (MH- b-PI) block copolymers-based devices, including write-once-read-many-times, Flash, and dynamic-random-access-memory, can be easily controlled by the self-assembly nanostructures (vertical cylinder, horizontal cylinder, and order-packed sphere), in which the MH and PI blocks, respectively, provide the charge-trapping and stretchable function. With increasing the flexible PI block length, the stretchability of the designed copolymers can be significantly improved up to 100% without forming cracks. Thus, intrinsically stretchable resistive memory devices (polydimethylsiloxane(PDMS)/carbon nanotubes(CNTs)/MH- b-PI thin film/Al) using the MH- b-PI thin film as an active layer is successfully fabricated and that using the MH- b-PI12.6k under 100% strain exhibits an excellent ON/OFF current ratio of over 106 (reading at −1 V) with stable Vset around −2 V. Furthermore, the endurance characteristics can be maintained over 500 cycles upon 40% strain. This work establishes and represents a novel avenue for the design of green carbohydrate-derived and stretchable memory materials.
- Subjects
DYNAMIC random access memory; NANOSTRUCTURED materials; CARBOHYDRATES; POLYISOPRENE; BLOCK copolymers; CARBON nanotubes
- Publication
Advanced Functional Materials, 2017, Vol 27, Issue 13, pn/a
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.201606161