High Detectivity Organic Photodetectors With Molybdenum (VI) Oxide and C60Layers
| Autor: | Il Ku Kim, Jun Hyung Jo |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Fullerene business.industry Oxide Photodetector chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Responsivity Wavelength chemistry Molybdenum Optoelectronics Electrical and Electronic Engineering 0210 nano-technology business Instrumentation Layer (electronics) Dark current |
| Zdroj: | IEEE Sensors Journal. 16:4767-4770 |
| ISSN: | 2379-9153 1530-437X |
| DOI: | 10.1109/jsen.2016.2548985 |
| Popis: | This paper proposes high-sensitive polymer/ fullerene bulk-heterojunction organic photodetectors (OPDs). A typical polymeric hole transport layer, (poly(3,4-ethylenedioxythophene):poly(styrenesulfonate), has substitutes with a molybdenum (VI) oxide (MoO3) layer. A thin C 60 hole blocking layer was also introduced to reduce the dark current performance of the OPD. Optical interference simulation also accomplished along with the generalized transfer matrix method to show the behavior of wavelengths in OPDs. As a result, the lowest dark current density of 14 pA/cm2, and 40% above EQE, has achieved in the visible range. In regards to the photodetector characteristics, a reasonable responsivity of 0.21 A/W and high detectivity of $2.4 \times 10^{12}$ cmHz $^{1/2}/\text{W}$ were also obtained. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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