Organic bistable molecular memory using photochromic diarylethene

Tsujioka, Tsuyoshi; Kondō, Hayato

doi:10.1063/1.1597966

Cited by 125 publications

(76 citation statements)

References 12 publications

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“…5a,b; blue plots) originating from photogenerated carriers. Noteworthy, it appears that no ring closure due to current flow is occurring in bi-component films, in contrast to previous observations on neat films of photochromic moieties in vertical geometries 4,24 . This is supported by comparing single-and bicomponent film devices (see Supplementary Fig.…”

Section: Resultscontrasting

confidence: 51%

Optically switchable transistors by simple incorporation of photochromic systems into small-molecule semiconducting matrices

et al. 2015

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The fabrication of multifunctional high-performance organic thin-film transistors as key elements in future logic circuits is a major research challenge. Here we demonstrate that a photoresponsive bi-functional field-effect transistor with carrier mobilities exceeding 0.2 cm 2 V À 1 s À 1 can be developed by incorporating photochromic molecules into an organic semiconductor matrix via a single-step solution processing deposition of a two components blend. Tuning the interactions between the photochromic diarylethene system and the organic semiconductor is achieved via ad-hoc side functionalization of the diarylethene. Thereby, a large-scale phase-segregation can be avoided and superior miscibility is provided, while retaining optimal p-p stacking to warrant efficient charge transport and to attenuate the effect of photoinduced switching on the extent of current modulation. This leads to enhanced electrical performance of transistors incorporating small conjugated molecules as compared with polymeric semiconductors. These findings are of interest for the development of high-performing optically gated electronic devices.

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Section: Resultscontrasting

confidence: 51%

Optically switchable transistors by simple incorporation of photochromic systems into small-molecule semiconducting matrices

et al. 2015

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“…1,2 Since then a wide variety of molecules such as tetracene, 1 anthracene, 2 polymethacrylate derivatives, 3 phenylene ethynylenes ͑known as Tour wires͒, 4-8 bipolar diarylethenes, 9 copper tetra͑butylphenyl͒porphyrin, 10 and rotaxane 11 have been proposed as basic materials for molecular memories. Recently, layers of rose bengal ͑see Fig.…”

Section: Introductionmentioning

confidence: 99%

Resistive switching of rose bengal devices: A molecular effect?

Karthäuser

Lüssem

Weides

et al. 2006

Journal of Applied Physics

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The resistive switching behavior of devices consisting of aluminum top electrode, molecular layer ͑rose bengal͒, and bottom electrode ͑zinc oxide and indium tin oxide͒ is examined. By measuring the current versus voltage dependence of these devices for various frequencies and by systematically varying the composition of the device, we show that the switching is an extrinsic effect that is not primarily dependent on the molecular layer. It is shown that the molecular layer is short circuited by filaments of either zinc oxide or aluminum and that the switching effect is due to a thin layer of aluminum oxide at the zinc oxide/aluminum interface.

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“…As one of the best candidates for optical memory and switches, photochromic diarylethenes have been extensively studied during the past few decades because of the thermal stability of both isomers and their fatigue resistance. Tsujioka and Kondo [21] presented an organic memory device using a bistable photochromic diarylethene as the active media. The diarylethene is a non-symmetrical bipolar molecule with a triphenylamine group as the electron donor and an oxadiazole group as the electron acceptor (compound 5 in by scanning tunnelling microscopy, demonstrated in DDME thin films.…”

Section: Conductance Transitions Based On Conformational Changesmentioning

confidence: 99%

Organic Functional Molecules towards Information Processing and High‐Density Information Storage

et al. 2008

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In this Progress Report, we discuss our recent achievements in design and synthesis of new functional molecules towards information processing at the molecular level and high‐density information storage. These include: 1) new molecular switches, logic gates, and combinational logic circuits based on molecules and ensembles with photochromic spiropyran units that undergo reversible structural transformation among multistates, in response to external inputs such as light, protons, and metal ions; 2) high‐density information storage, mainly focusing on nanometer‐scale electrical recording based on the conductance transition of organic molecules, and multimode data storage on multiresponsive molecules. Relevant progress and an outlook in this area are also discussed.

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Organic bistable molecular memory using photochromic diarylethene

Cited by 125 publications

References 12 publications

Optically switchable transistors by simple incorporation of photochromic systems into small-molecule semiconducting matrices

Optically switchable transistors by simple incorporation of photochromic systems into small-molecule semiconducting matrices

Resistive switching of rose bengal devices: A molecular effect?

Organic Functional Molecules towards Information Processing and High‐Density Information Storage

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