ACS Applied Materials & Interfaces · 2020 · 22 citations · 31 references
EngineeringElectrical EngineeringMaterials ScienceElectronic MaterialsOptoelectronicsSemiconductor DevicesMemory DevicesOptoelectronic DevicesOptoelectronic MaterialsOrganic Electronic MaterialsOrganic SemiconductorsOxide SemiconductorsHeterojunction DevicesOptoelectronic Device ModelingOptoelectronic Device SimulationOptoelectronic PropertiesOrganic Memory DevicesPhototransistorsRecovery TimeRetention Time Stability
, and a linear response. The mechanism of the photoinduced memory is studied experimentally and verified using a device simulation. We find that the memory is due to long charge retention time at the organic PHJ interface which is stable for over 9 days. It is correlated with the low leakage current found in ordered organic junctions having low subgap tail states. The presented integration of the PHJ with the transistor constitutes a new design of write-once-read-many-times memory device that is likely to be attractive for low-cost applications.
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