Layered Synthetic Microstructures

Bedzyk and co-workers used the XSW technique to probe the ion distribution in the electrolyte above a charged cross-linked phospholipid membrane adsorbed onto a silicon-tungsten layered synthetic microstructure (LSM) as shown in Figure 2.80(a). The grazing-angle incidence experimental set-up... 

Electrochemical Instrumentation. For the Ru complexes, a 1 cm diameter platinum disk brazed onto a brass holder was used as a working electrode. It was masked with ChemGrip (a teflon based epoxy) except for the upper face. Prior to use, it was polished with 1 micron diamond paste (Buehler) and rinsed with water, acetone and methanol. The working electrode for each Os complex was the uppermost platinum layer of a platinum/carbon layered synthetic microstructure (LSM) (Energy Conversion Devices). The LSM consisted of 200 layer pairs of carbon and platinum whose thicknesses were 24.4 and 17.0 A, respectively and where platinum was the outermost layer. The LSM was placed in 1.0 M H2SO4 and cleaned... 

Normally, the maximum achievable 9 angle in a WDS system is about 73°. Thus, the maximum X of characteristic X-rays being diffracted is about 1.9d of the analyzing crystal. Table 6.4 lists the commonly used analyzing crystals for WDS, which include LiF, pentaerythrital (PE), thallium acid phthalate (TAP) and layered synthetic microstructure (LSM). For detecting light... 

A more promising approach to produce a 6XIX acceptance around 0.005 is based on the layered synthetic microstructure (LSM). This consists of many alternating layers of high and low atomic number materials (e.g. 

X-RAY STANDING WAVES FROM LAYERED SYNTHETIC MICROSTRUCTURES... 

Figure 21. Left Schematic of Zn/Cd arachidate Langmuir-Blodgett layers deposited on the Si surface of a W/Si layered synthetic microstructure with 25-A period. Right The intensities of the XSW on the low-angle side (dashed line) and high-angle side (solid line) of the Bragg diffraction. Reprinted with permission from Bedzyk et al. (1988). Copyright 1988 by the American Association for the Advancement of Science.

Layered synthetic microstructure 5-6 O-Mg Higher intensities but lower resolution than TAP... 

Layered synthetic microstructure 11-12 C Specialized application in the determination of C... 

A considerable improvement in terms of count rate has been achieved by means of the LSM reflectors, that is, layered synthetic microstructures [33]. They give better peak-to-background ratios (an improvement of 14 times... 

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