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A Soft Breakdown (SBD) phenomenon happening in porous low-k dielectrics during time dependent dielectric breakdown measurements was investigated. The early formation of local conductive paths was identified by monitoring leakage currents and capacitance data in the SBD phase. The nature of this conductive path was demonstrated to be related to intrinsic dielectric degradation. By comparing samples...
Miniaturized on-chip electrochemical sensors fabricated by MEMS techniques have been demonstrated to have sufficient sensitivity for environmental sample analysis. However, due to the surface cumulative passivation effects, the decreasing sensitivity towards analytical targets has restricted the low-cost and long term applications of these devices. In this paper, a microfluidic electrochemical sensor...
A comparison between the operational map of a QD MLL done by autocorrelation and FROG is made. The results show that the complete mode-locking region is significantly smaller when FROG is used versus autocorrelation.
We have fabricated efficient bulk heterojunction organic photovoltaic (OPV) device based on poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV) with copper(II) phthalocyanine (CuPc) as donor and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) as acceptor. The power conversion efficiency of the MEH-PPV/PCBM OPV device with 15% CuPc (1.41%) is increased by 12% compared with that of...
Precision DC voltage dividers with ratings up to 1000 kV have been built using the 150 kV resistor module developed at the National Measurement Institute, Australia (NMIA). The structure of the 150 kV resistor module and the measurement techniques for evaluating its performance are described. The method for evaluating voltage ratio errors at voltages up to 1000 kV is discussed. It is shown that a...
The first electrochemical actuator with a parylene bellows for intraocular drug delivery is presented in which the bellows separates the electrolysis actuation chamber from the drug reservoir. The parylene bellows was fabricated using a novel polyethylene glycol (PEG)-molding process and mechanically characterized. Optimization of the gas generation efficiency of the actuators was performed. We achieved...
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