Piezoelectric touch-sensitive flexible hybrid energy harvesting nanoarchitectures.
In this work, we report a flexible hybrid nanoarchitecture that can be utilized as both an energy harvester and a touch sensor on a single platform without any cross-talk problems. Based on the electron transport and piezoelectric properties of a zinc oxide (ZnO) nanostructured thin film, a hybrid cell was designed and the total thickness was below 500 nm on a plastic substrate. Piezoelectric touch signals were demonstrated under independent and simultaneous operations with respect to photo-induced charges. Different levels of piezoelectric output signals from different magnitudes of touching pressures suggest new user-interface functions from our hybrid cell. From a signal controller, the decoupled performance of a hybrid cell as an energy harvester and a touch sensor was confirmed. Our hybrid approach does not require additional assembly processes for such multiplex systems of an energy harvester and a touch sensor since we utilize the coupled material properties of ZnO and output signal processing. Furthermore, the hybrid cell can provide a multi-type energy harvester by both solar and mechanical touching energies.
Choi
Dukhyun
D
Samsung Advanced Institute of Technology, Yongin, Korea.
Lee
Keun Young
KY
Lee
Kang Hyuck
KH
Kim
Eok Su
ES
Kim
Tae Sang
TS
Lee
Sang Yoon
SY
Kim
Sang-Woo
SW
Choi
Jae-Young
JY
Kim
Jong Min
JM