All-Oxide Thin Film Transistors and Rectifiers Enabling On-Chip Capacitive Energy Storage
Type
ArticleAuthors
Wang,ZhenweiAlshammari, Fwzah Hamud
Omran, Hesham
Hota, Mrinal Kanti

Al-Jawhari, Hala A.
Salama, Khaled N.

Alshareef, Husam N.

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Functional Nanomaterials and Devices Research Group
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Sensors Lab
Date
2019-09-08Embargo End Date
2020-01-01Permanent link to this record
http://hdl.handle.net/10754/656848
Metadata
Show full item recordAbstract
All-oxide, fully-transparent thin film transistors and rectifiers, processed entirely by atomic layer deposition, have been developed for on-chip capacitive energy storage. Fully depleted thin film transistor (TFT) operation is achieved by optimizing the carrier concentration in the ZnO channels. The TFTs show an average saturation mobility of 10.5 cm2 V−1 s−1, a stable positive turn-on voltage of 0.88 V, a low subthreshold swing of 0.162 V dec−1, and the entire device achieves an overall transmittance of 85%. The field-effect rectifiers (FER) are fabricated based on short-circuiting the gate and drain electrodes of the TFT structure. Rectification ratio of 3.5 × 106 is achieved in DC measurements. Under AC input, the rectifiers can steadily operate at an input frequency up to 10 MHz and amplitude (peak to peak) up to 20 V. The rectifier can be used for signal processing applications with frequency up to 1 MHz. The energy storage utility of the rectifiers is demonstrated by rectifying AC input signals and successfully charging home-made electrochemical on-chip microsupercapacitors. The results demonstrate that integrated, all-oxide thin film rectifiers can be used for on-chip capacitive energy storage.Citation
Wang, Z., Alshammari, F. H., Omran, H., Hota, M. K., Al-Jawhari, H. A., Salama, K. N., & Alshareef, H. N. (2019). All-Oxide Thin Film Transistors and Rectifiers Enabling On-Chip Capacitive Energy Storage. Advanced Electronic Materials, 5(12), 1900531. doi:10.1002/aelm.201900531Sponsors
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).Funding: King Abdullah University of Science and Technology
Publisher
WileyJournal
Advanced Electronic MaterialsAdditional Links
https://onlinelibrary.wiley.com/doi/abs/10.1002/aelm.201900531ae974a485f413a2113503eed53cd6c53
10.1002/aelm.201900531