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The aim is to assess the programming and erasing efficiency of an organic photomemory device through optically controlled operations.

July 29, 2026APL Electronic DevicesOpen Access

Programming/erasing efficiency of charge transfer photomemory

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Randomized trial evaluates the programming and erasing efficiency of photomemory devices, suggesting improved performance with dual-band irradiation.

The aim is to assess the programming and erasing efficiency of an organic photomemory device through optically controlled operations.
Fabrication of an organic photomemory device using polyimide thin films.
Execution of 'Write' operation under UVA irradiation and 'Erase' operation under UVC irradiation.
Implementation of a wavelength-selective strategy to minimize spectral crosstalk.
The 'Write' operation under UVA increases current from ∼10−12 to ∼10−3 A, an increase of over eight orders of magnitude.
The 'Erase' operation under UVC restores the high resistance state in ∼25 seconds.
The dual-band approach enhances operational efficiency, contrast, and cyclic stability while achieving data retention of ∼14,000 seconds.

Hsu et al. (2026) studied this question.

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Randomized trial evaluates the programming and erasing efficiency of photomemory devices, suggesting improved performance with dual-band irradiation.