Double buffer circuit for the characterization of piezoelectric nanogenerators based on ZnO nanowires
| Autor: | Guylaine Poulin-Vittrant, Sarah Boubenia, Kevin Nadaud, François Morini, Daniel Alquier, Camille Justeau, Abhishek Singh Dahiya, Kiron Prabha Rajeev |
|---|---|
| Přispěvatelé: | GREMAN (matériaux, microélectronique, acoustique et nanotechnologies) (GREMAN - UMR 7347), Institut National des Sciences Appliquées - Centre Val de Loire (INSA CVL), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Tours-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
energy harvesting
piezoelectrics Materials science Physics and Astronomy (miscellaneous) Differential amplifier 02 engineering and technology Hardware_PERFORMANCEANDRELIABILITY Electrometer 010402 general chemistry electrical 01 natural sciences nano-generators Hardware_INTEGRATEDCIRCUITS Output impedance characterization Electronic circuit business.industry Open-circuit voltage Buffer amplifier 021001 nanoscience & nanotechnology 0104 chemical sciences [SPI.TRON]Engineering Sciences [physics]/Electronics a) Optoelectronics ZnO nanowires 0210 nano-technology business Energy harvesting Voltage Hardware_LOGICDESIGN |
| Zdroj: | Applied Physics Letters Applied Physics Letters, American Institute of Physics, 2018, 112 (6), pp.063901. ⟨10.1063/1.5018145⟩ |
| ISSN: | 0003-6951 |
| Popis: | International audience; The accurate and precise measurements of voltage and current output generated by a nano-generator (NG) is crucial to design the rectifying/harvesting circuit and to evaluate correctly the amount of energy provided by a NG. High internal impedance of the NG's (several MΩ) is the main limiting factor for designing circuits to measure the open circuit voltage. In this paper, we present the influence of the characterization circuit used to measure the generated voltage of piezoelectric NGs. The proposed circuit consists of a differential amplifier which permits to measure the voltage provided by the NG without applying any parasitic bias to it. The proposed circuit is compared to a commercial electrometer and a homemade buffer circuit based on a voltage follower circuit to show its interest. For the proposed double buffer circuit, no asymmetric behavior has been noticed contrary to the measurements made using simple buffer circuit and Keithley electrometer. The proposed double buffer circuit is thus suitable to measure the NG voltage in a transparent way, as an ideal voltage probe should do. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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