Autors: Rusev, R. P., Ruskova, I. N., Tzaneva, B. R., Angelov, G. V.
Title: Piezo-Photodiode from Rochelle Salt and Methyl Red Layers
Keywords: methyl LED, piezo effect, piezo-photo diodes, piezotronics effect, Rochelle salt

Abstract: For future applications in simultaneous detection of sunlight and mechanical oscillations, a piezo-photodiode with a structure of aluminium (AI)/ Rochelle salt (RS)/ Methyl red/ indium-tin-oxide (ITO)/ Glass was created. A piezo layer of RS was deposited on the aluminium substrate by electrophoresis, and then the RS layer was flooded with Methyl red solution, and after drying, the organic photosensitive layer was obtained. The piezo modulus d33 240N, which is characteristic of the salt, was measured on this intermediate structure. The piezo photodiode structure was completed by placing ITO)/Glass on top. Applying a voltage of -2V to +2V gave a typical diode I-V characteristic and a dark current of -0.2 to +0.32nA was measured. After irradiation with visible light, a difference between the photocurrent and the current in the dark was observed, and at a voltage of +1.4V, the photocurrent was already twice as large. After simultaneous irradiation and mechanical vibration of the structure, the peak photocurrent increases twice more. Research shows that in the future, devices can be created to simultaneously capture and detect energy from multiple sources.

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Issue

2024 59th International Scientific Conference on Information, Communication and Energy Systems and Technologies, ICEST 2024 - Proceedings, 2024, , https://doi.org/10.1109/ICEST62335.2024.10639778

Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus и Web of Science