| Autor: |
Yi-Jou Lin, Yi-Cin Chen, Te-Hua Liu, Chun-Chieh Lin, Chih-Ming Wang, Yu-Kuei Hsu, Mei-Hsin Chen, Chu-Hsuan Lin |
| Předmět: |
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| Zdroj: |
Journal of Physics D: Applied Physics; 1/23/2020, Vol. 53 Issue 4, p1-1, 1p |
| Abstrakt: |
Until recently, different metals have been adopted as the electrode materials for MoOx/Si photodetectors and solar cells, but the influence of these different metals has not been investigated. We have systematically studied and proved that the choice of metal has a great impact on optoelectronic performance. Ag and Al with similar low work functions display similar current–voltage behavior before and after the introduction of MoOx; whereas Au and Ni which own similar high work functions lead to another type of current–voltage behavior. MoOx in the metal/MoOx/Si samples brings the superior diode behavior with an enhanced responsivity and decreased dark current as compared with the metal/Si samples. The choice of Ag as the top electrode on MoOx/Si has low alloying or defect formation with the MoOx/Si structure preventing the deterioration of the diode behavior, and the large downward band bending in MoOx at the Ag/MoOx junction facilitates the multitunnelling capture emission. This leads to high responsivity while maintaining the low dark current. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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