Abstract
In the current work, the authors studied a hybrid organic-inorganic photodiode combining n-type monocrystalline silicon (n-Si)and indigo dye where the natural dye indigo has been applied as an interfacial layer between Gold (Au)and n-Si. The electrical and photo-response characteristics of photodiode based on indigo dye were investigated through current, conductance and capacitance studies measured under the wide illumination intensity and frequency ranges. The frequency dependency of capacitance-voltage (C-V)and conductance-voltage (G-V)characteristic properties of the Au/Indigo/n-Si photodiode was examined in the frequencies varying from 100 kHz to 1 MHz in view of the effects of series resistance (Rs), the concentration of donor atoms (Nd)and density of interface states (Nss). The C-V and G -V studies indicate that the Nss and Rs are key factors which are strongly influencing the electrical properties of the fabricated Photodiode. From the obtained results, the fabricated Au/Indigo/n-Si photodiode can be a promising contender for electro-optic device engineering.
| Original language | English |
|---|---|
| Pages (from-to) | 7-12 |
| Number of pages | 6 |
| Journal | Solid State Sciences |
| Volume | 93 |
| DOIs | |
| State | Published - Jul 2019 |
| Externally published | Yes |
Keywords
- Capacitance-voltage
- Current-voltage analysis
- Highly stable indigo dye
- Organic photodiode
- Series resistance and density of states
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