Large-area junctions

How can such problems be counterbalanced Since a large capacitance of a semiconductor/electrolyte junction will not negatively affect the PMC transient measurement, a large area electrode (nanostructured materials) should be selected to decrease the effective excess charge carrier concentration (excess carriers per surface area) in the interface. PMC transient measurements have been performed at a sensitized nanostructured Ti02 liquidjunction solar cell.40 With a 10-ns laser pulse excitation, only the slow decay processes can be studied. The very fast rise time cannot be resolved, but this should be the aim of picosecond studies. Such experiments are being prepared in our laboratory, but using nanostructured... 

Active and Non-Active Large-Area Metal-Molecules-Metal Junctions... 

Milani M, Grave C, Ferri V, Samori P, Rampi MA (2007) Ultrathin -conjugated polymer films for simple fabrication of large-area molecular junctions. ChemPhysChem 8 515-518... 

Akkerman HB, Blom PWM, de Leeuw DM, de Boer B (2006) Towards molecular electronics with large-area molecular junctions. Nature 441 69-72... 

Preiner MJ, Melosh NA (2008) Creating large area molecular electronic junctions using atomic layer deposition. Appl Phys Lett 92 213301... 

Akkerman HB (2008) Large area molecular junctions. Ph.D. Thesis, University of Groningen, The Netherlands, ISBN 978-90-367-3441-7... 

Agarwal, A. K., et al., Large Area, 1.3 kV, 17A, Bipolar Junction Transistors in 4H-SiC, Proc. of the 15th Inti. Symposium on Power Semiconductor Devices and ICs. ISPSD 03, Cambridge, England, April 14-17, 2003, pp. 105-108. 

Panel (c) shows typical results for the pH of rainwater. The average of the 17 measurements is given by the horizontal line at pH 4.14 and the letters s, t, u, v, w, x, y, and z identify types of pH electrodes. Types s and w had relatively large systematic errors. The type s electrode was a combination electrode (Figure 15-9) containing a reference electrode liquid junction with an exceptionally large area. Electrode type w had a reference electrode filled with a gel. 

Recently, RBS has been used to study the metal-silicon reactions induced by both a CW laser and an electron beam (53). Uniform, large area, single phase silicides were formed by adjusting the beam power level to induce a solid state reaction. Under certain conditions metastable mixed-phase systems were also obtained. RBS could non-destructively determine the stoichiometry of the phases formed without additional standards. AES and SIMS have also been used in the study of metal silicides. These applications and other points of interest in the fabrication, characterization and application of metal-semiconductor Schottky barrier junctions have been reviewed recently by Sharma and Gupta (54). 

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