Measuring chains, half-cells

Unfortunately and somewhat confusing the term electrode has a variety of different meanings in electrochemistry. Unlike the commonly and also above-used definition, where it refers to the electronically conducting component of the cell only, it is also applied to the combination of an electronically conducting material in contact with an ionicaUy conducting phase [1]. Thus, the half-cell described in the next chapter is often colloquially referred to as electrode. Furthermore, the term electrode is even used to denote complete electrochemical sensors such as glass electrode measuring chains. 

The analysis of all RTIL fluorescence data (Table 1) shows that the half band width X1/2 is constant within the experimental error + 2 nm in a case of measurement in micro cell. But this values (Xyz) are bigger for P-carotene in RTlLs with longer chain as we can see from comparison of (1L4) and (ILl) and also (1L2) and (1L3). The wavelength at the fluorescence maximum (Xmax) in the micro cell measurement is 530 nm for P-carotene in (ILl) and (1L4) (both with an anion [BF4] ). But for (1L2) and (1L3) (with an anion [(CF3S02)2N] ) the (Xmax) is shifted towards longer wavelengths 543 nm and 554 nm in a case of shorter (IL2) chain, and longer (1L3) chain, respectively. In a case of fluorescence measurement in standard cuvette such relation is not observed. 

Following the chain of logic defined above, we start by comparing electron transfer dynamics and solar cell power conversion efficiency. Thus, the results of the kinetic studies of the half cell electrode were compared to those of photovoltaic measurements on complete solar cells with the same sensitizers. The quantum efficiency (rj) of a solar cell is generally defined as the external quantum efficiency (EQE = number of extracted electrons/number of absorbed photons). For a discussion of how key processes contribute to the overall quantum efficiency we can define the efficiency as ... 

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