Specially, the crystallites formed at high temperature in the copolymer P VDF-TrFE) 50:50 mol% exhibit less ordered ferroelectric crystalline sequences, thus attaining the excellent features of the low oP VDF-TrFEoltage of about 4 V with a switching time of 100 ms, ultra-high memory density of 43.9 Gbit∙in−2 (by a 7 V, 1 ms pulse) and a high usage temperature of 60 °C.
The fabricated CNT TFTs with a 1000-nm-thick 1000-nm-thick 1000-nm-thickited an on-off current ratio of 106, a mobility of 45 cm2 V−1 s−1, a low ophotoresistltage of less than 5 V, and a gate leakage current lower than 10−11 A.
Since the proposed RF MEMS switches are actuated by piezoelectricity, they can be operated at an extremely low operation voltage of 5 V with a negligible power consumption of less than 0.1 μW.
Since the proposed RF MEMS switch is actuated electrothermally, it can be operated at an extremely low operation voltage of 0.16 V.
Figure 5b shows I-V characteristics with a low CC of 10 μA and low operation voltage of ±1.2 V is applied with sweeping direction 3 → 6 (i.e., 0 V → +1.2 V → 0 V → −1.2 V → 0 V).
These savings are due to the low operation costs of pervaporation and to the high yield of dehydrated ethanol, typical of pervaporation processes (Tsuyomoto et al.1997).1997
By considering a low operation current of 1nA, an even denser memory of 1,300 Pbit/in2 could be designed in the future.
The present device also only requires very low operation voltage of ±1 V with a current of only a few nanoamperes.
Therefore, long read pulse endurance of >105 cycles, data retention of >6 h, and P/E endurance of >500 cycles with a pulse width of 1 µs at a low operation current of 300 µA are obtained.
The practical test was carried out at the 10 MV tandem accelerator at Kyushu University, and the beam transmission efficiency at a low operation voltage of 1 MV was found to be an order of magnitude increased.
