Flexible Polymer Rectifying Diode on Plastic Foils with MoO3Hole Injection

Li, Miao; Rafi, Nazmul; Berger, Paul R.; Lupo, Donald; Mäntysalo, Matti (2022)
 
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Li, Miao
Rafi, Nazmul
Berger, Paul R.
Lupo, Donald
Mäntysalo, Matti
2022

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doi:10.1109/FLEPS53764.2022.9781531
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https://urn.fi/URN:NBN:fi:tuni-202210057432

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Non peer reviewed
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In this work, a flexible solution processed polymer diode with a structure of aluminum/indacenodithiophene-benzothiadiazole (C16-IDT-BT)/molybdenum trioxide/gold was developed. A DC rectification ratio of 7×103 was achieved at 2 V with a forward current density of 2.6 mA/cm2 and a reverse current density of 0.37 µA/cm2. The UV-ozone treated MoO3 layer acted as a hole injection layer for the C16-IDT-BT layer to enhance the forward current density. The Au electrode with a higher work function compared to Ag was a superior anode for the polymer diode. The diode can be used as a blocking diode to allow the current to flow in the desired direction.

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