TitleDesign, fabrication and test on piezoelectric energy harvesters with non-traditional geometries
NameWang, Lei (author), Gea, Hae Chang (chair), Coon- Chennault, Kimberly (internal member), Denda, Mitsunori (internal member), Rutgers University, Graduate School - New Brunswick,
SubjectMechanical and Aerospace Engineering,
DescriptionUnimorph piezoelectric cantilevers with non-traditional surface geometries were investigated by theoretical calculations, finite element models, and sample tests. The study shows the average output voltage for piezoelectric cantilevers with same length and surface area is unique, no matter what the surface shapes are. Optimization on cross section was also conducted theoretically, which indicated a trapezoidal-shaped unimorph cross section can maximize the average output voltage. Several dome-shape piezoelectric devices were fabricated using PZT-epoxy sol-gel method and deposition from spin coating techniques. The surface area was examined by AFM and SEM images. Parameters like piezoelectric coefficients d31, d33 and capacitance were investigated; their trends with increasing polling voltages were also plotted and analyzed. A novel approach to ribbon-shaped PZT device on a flexible substrate was advanced at last.
NoteIncludes bibliographical references
Noteby Lei Wang
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.