Theses and Dissertations

Date of Award


Document Type


Degree Name

Master of Science (MS)


Mechanical Engineering

First Advisor

Dr. Karen Lozano

Second Advisor

Dr. M. Jasim Uddin

Third Advisor

Dr. Rogelio Benitez


Flexible and stretchable triboelectric nanogenerator (TENG) is the next generation potential candidate for wearable and portable electronics. In this study, we have demonstrated all nanofiber based TENG for energy harvesting and biomechanical sensing applications. The TENG was prepared by force spun polyvinylidene fluoride (PVDF) and gold (Au) sputtered thermoplastic polyurethane (TPU) nanofiber (NF) layer. The experimental characterization of the PVDF-TPU/Au NF-TENG revealed that surface modification by dispersed gold in TPU fiber membrane resulted the maximum open circuit voltage (254 V) and short circuit current (86 μA) output at 240 bpm (beats per minute) load frequency which was respectively 112% and 87% greater than bare PVDF-TPU NFs based TENG with the active contact surface area 1.25 × 1.0 in2. Furthermore, the hand tapped output of the TENG was able to light up 75 LED of 1.5 V each. The results of the resistive loads and capacitor tests exemplified that our proposed TENG offered a simple and high performance self-chargeable electronics. We have also demonstrated the possible chest, thigh, forearm, and bicep muscle sensor with different body movement, illustrated the possibility of flexible and cost-effective body motion sensors.


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