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Research on piezo-phototronic effect in ZnO/AZO heterojunction flexible ultraviolet photodetectors.
- Source :
-
Optik - International Journal for Light & Electron Optics . Oct2021, Vol. 243, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- A novel Al-doped (3 wt%) ZnO (AZO) UV photodetector (PD) and ZnO/AZO heterojunction double-layer UV PD were prepared on a polyethylene terephthalate (PET) substrate by utilizing the radio frequency (RF) sputtering technology and conventional photolithography. Because the ZnO/AZO heterojunction possesses the ability to improve the separation of the photogenerated electron-hole pairs, the responsivity of the ZnO/AZO PD is higher than that of the pure AZO PD under the same bias voltage. Moreover, the responsivity of the obtained ZnO/AZO PD showed a 1.13 fold increase from 5.91 to 6.70 A/W when the tensile variable ɛ was 0.16. These findings also provide a new alternative for the preparation of flexible UV PDs with piezo-phototronic effect, which is low-cost and offers environmental sustainability. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00304026
- Volume :
- 243
- Database :
- Academic Search Index
- Journal :
- Optik - International Journal for Light & Electron Optics
- Publication Type :
- Academic Journal
- Accession number :
- 151430596
- Full Text :
- https://doi.org/10.1016/j.ijleo.2021.167472