التفاصيل البيبلوغرافية
| العنوان: |
Amplified piezoelectric transduction of nanoscale motion in gallium nitride electromechanical resonators. |
| المؤلفون: |
Faucher, Marc, Grimbert, Bertrand, Cordier, Yvon, Baron, Nicolas, Wilk, Arnaud, Lahreche, Hacène, Bove, Philippe, François, Marc, Tilmant, Pascal, Gehin, Thomas, Legrand, Christiane, Werquin, Matthieu, Buchaillot, Lionel, Gaquière, Christophe, Théron, Didier |
| المصدر: |
Applied Physics Letters; 6/8/2009, Vol. 94 Issue 23, p233506, 3p, 1 Diagram, 3 Graphs |
| مصطلحات موضوعية: |
PIEZOELECTRIC transducers, GALLIUM nitride, ELECTROMECHANICAL devices, ELECTRIC resonators, PIEZOELECTRIC semiconductors, ELECTRICAL properties of electron gas, MODULATION-doped field-effect transistors |
| مستخلص: |
A fully integrated electromechanical resonator is described that is based on high mobility piezoelectric semiconductors for actuation and detection of nanoscale motion. We employ the two-dimensional electron gas present at an AlGaN/GaN interface and the piezoelectric properties of this heterostructure to demonstrate a resonant high-electron-mobility transistor enabling the detection of strain variation. In this device, we take advantage of the polarization field divergence originated by mechanical flexural modes for generating piezoelectric doping. This enables a modulation of carrier density which results in a large current flow and thus constitutes a motion detector with intrinsic amplification. [ABSTRACT FROM AUTHOR] |
|
Copyright of Applied Physics Letters is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
