Semitransparent electrode

Fig. 12. Absorption spectra of polyaniline film on a semitransparent Pt electrode immersed in 1 M HC1. Spectra (a) to (f) were recorded at potentials of —0.2, +0.6, +0.8, + 1.0, + 1.2 and + 1.4 V relative to a silver reference electrode. Reproduced from [173b],...

LAJs formed at least by one electrode consisting of a semitransparent Au surface allow for irradiation in situ of the incorporated molecular systems. 

Similar results are obtained by using an Hg-based junction under alternating irradiation of the DAE SAM through the semitransparent bottom electrode (Fig. 13). Under this condition a difference between the minimum and the maximum measured currents is 10 [177]. 

Fig. 13 Schematic representation of a photo-active molecular junction containing DAE-based SAM sandwiched between a semitransparent Au bottom electrode and an SAM/Hg-drop top electrode. The electrical response of the junction is measured upon irradiation at different wavelengths through the semitransparent bottom electrode...

Fig. 14 Schemes of the Hg-drop LAJ incorporating AZO-based SAM (a) in the trans form and (b) in the cis form, (c) I-V curves for junctions assembled by incorporating either the trans or the cis isomers, (d) I-V curves measured under in-situ photoisomerization by alternating irradiation at X = 370 nm and X = 450 nm through the semitransparent gold electrode...

The samples for the linear Stark effect measurement were prepared as follows. First, 9 monolayers of cadmium arachidate were deposited on fused quartz plates with semitransparent A1 electrodes. Next, test layers which contained 30 layers of compound C180AZ0SN were deposited. Then, further 10 layers of cadmium arachidate were deposited. Finally, the semitransparent top A1 electrodes were vacuum-deposited. 

Lee JY, Connor ST, Cui Y, Penmans P (2010) Semitransparent organic photovoltaic cells with laminated top electrode. Nano Lett 10 1276... 

The TOP principle is based on generating a thin sheet of electron-hole pairs near the surface of the sample—usually a high-resistivity semiconductor with negligible thermal equihbrium-carrier concentration, sandwiched between two electrodes, one of which is semitransparent, as shown in Fig. 4.1. 

Hence, the highest photoelectric sensitivity of dyes can be obtained in (sandwich-type) photoresistor cells in which very thin dye layers (L< 1 mm) are sandwiched between semitransparent electrodes. 

This reference reports the appearance of a light-induced potential difference between two electrodes separated by a specially organized molecular multilayer. A barium electrode and a semitransparent aluminium electrode, which have substantially different electronic work functions JAl > c/Ba, have been used in these studies. The two electrodes were separated by a multilayer system consisting of a layer of isolating molecules covered by a... 

If the cell size is diminished until its thickness is less than that of the diffusion layer, then electrolysis is rapid and almost 100 percent. Other advantages are the necessity of only a small quantity of solution and the possibility of making simultaneous optical observations by using semitransparent electrodes. These thin-layer cells have thicknesses ranging from 2 to 100 pm. Figure 9.13 shows two possible constructions. In the... 

In this appendix we review the general theoretical aspects of the semitransparent Optical Rotating Disc Electrode. The electrode is assumed to be uniformly illuminated by parallel light passing through the electrode and into the solution where it generates, from species A, a photoproduct... 

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