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000058666 0247_ $$2DOI$$a10.1088/0957-4484/18/42/424004
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000058666 084__ $$2WoS$$aNanoscience & Nanotechnology
000058666 084__ $$2WoS$$aMaterials Science, Multidisciplinary
000058666 084__ $$2WoS$$aPhysics, Applied
000058666 1001_ $$0P:(DE-Juel1)VDB45470$$aMeszaros, G.$$b0$$uFZJ
000058666 245__ $$aCurrent Measurements in a wide Dynamic range - Applications to Electrochemical Nanotechnology
000058666 260__ $$aBristol$$bIOP Publ.$$c2007
000058666 300__ $$a424004
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000058666 440_0 $$04475$$aNanotechnology$$v18$$x0957-4484
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000058666 520__ $$aCurrent measurements in a wide dynamic range from low picoamperes up to a few milliamperes are usually carried by implementing logarithmic current-to-voltage converter circuits. Conductance studies in nanoscale metal | molecule | metal junctions require measurements with a high dynamic range, good accuracy and reasonable speed simultaneously. In this work we propose two novel circuit solutions which comply with these conditions: one is based on a high-accuracy, fine-tunable logarithmic current-to-voltage converter. Another circuit implements a double-output (or multiple-output) linear current-to-voltage converter, for which the problem of range-switching has been circumvented. Both circuits were applied in constructing a low-current bipotentiostat dedicated to the electrochemical formation of molecular-scale gaps, and a novel scanning tunnelling microscope preamplifier stage for current-distance spectroscopy studies.
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000058666 7001_ $$0P:(DE-Juel1)VDB63965$$aLi, C.$$b1$$uFZJ
000058666 7001_ $$0P:(DE-Juel1)VDB45469$$aPobelov, I.$$b2$$uFZJ
000058666 7001_ $$0P:(DE-Juel1)VDB9859$$aWandlowski, Th.$$b3$$uFZJ
000058666 773__ $$0PERI:(DE-600)1362365-5$$a10.1088/0957-4484/18/42/424004$$gVol. 18, p. 424004$$p424004$$q18<424004$$tNanotechnology$$v18$$x0957-4484$$y2007
000058666 8567_ $$uhttp://dx.doi.org/10.1088/0957-4484/18/42/424004
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000058666 9141_ $$y2007
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000058666 9201_ $$0I:(DE-Juel1)VDB801$$d31.12.2010$$gIBN$$kIBN-3$$lGrenz- und Oberflächen$$x0
000058666 9201_ $$0I:(DE-Juel1)VDB381$$d14.09.2008$$gCNI$$kCNI$$lCenter of Nanoelectronic Systems for Information Technology$$x1$$z381
000058666 9201_ $$0I:(DE-82)080009_20140620$$gJARA$$kJARA-FIT$$lJülich-Aachen Research Alliance - Fundamentals of Future Information Technology$$x2
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