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Articles you may be interested inFabrication of poly(methyl methacrylate)-MoS2/graphene heterostructure for memory device application

Current-voltage (I-V) curves for Al/fullerene (C 60 ) nanoparticles embedded in poly(methylmethacrylate) (PMMA) layer/indium-tin oxide (ITO) organic bistable devices (OBDs) with an Al 2 O 3 blocking layer showed a current bistability. The ON and OFF currents of the OBDs with an Al 2 O 3 blocking layer at 1 V were 1 × 10 −5 and 1 × 10 −8 A, respectively, and their ON/OFF ratio is 1 × 10 3 , which was much larger than those of the OBDs without an Al 2 O 3 blocking layer. Write-read-erase-read characteristics showed that the OBDs exhibited wide-range current hysteresis, which could be used as rewritable nonvolatile memory cells. The endurance number of the ON/OFF switchings for the OBDs was above 5 × 10 4 cycles. The effect of the Al 2 O 3 blocking layer on the Al/C 60 nanoparticles embedded in PMMA layer/Al 2 O 3 /ITO device is described on the basis of the I-V results.

: This study was carried to investigate the effect of illite addition on the growth, bioactive components and volatile compounds of leaf on Saururus chinensis Baill cultivation in greenhouse. Illite addition on Saururus chinensis Baill cultivation resulted no significant effects on the aerial part. However, the root part was highest in 5% illite addition group. Crude oil and ash amount increased as illite additives was increased. Ca of inorganics and free sugars contents were highest in 5% and 20% illite addition, respectively. Hyperoside and isoquercetin of available component on leaf were highest in 5% illite addition group, 4.02 ㎎/g and 4.31 ㎎/g, respectively. The volatile compounds in Saururus chinensis Baill leaf cultured with illite addition amounts were isolated by solid-phase microextraction fiber (polydimethysiloxane 65 ㎛) and identifed by gas chromatogtaphy mass spectrometry. As the results, the 22 volatile compounds were identified from in Saururus chinensis Baill leaf and major volatile compounds were the α-cadinol (18.50%), myristicin (16.46%), methyl-9-methyl-tetradecanoate (10.22%), and γ-muurolene (9.75%). Especially, the content of α-cadinol was highest in 5% illite addition group and γ-muurolene on overall illite addition group was lower than no addition group.

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