Perovskite multifunctional logic gates via bipolar photoresponse of single photodetector

Woochul Kim, Hyeonghun Kim, Tae Jin Yoo, Jun Young Lee, Ji Young Jo, Byoung Hun Lee, Assa Aravindh Sasikala, Gun Young Jung () and Yusin Pak ()
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Woochul Kim: Gwangju Institute of Science and Technology (GIST)
Hyeonghun Kim: Korea Institute of Science and Technology (KIST)
Tae Jin Yoo: Pohang University of Science and Technology
Jun Young Lee: Gwangju Institute of Science and Technology (GIST)
Ji Young Jo: Gwangju Institute of Science and Technology (GIST)
Byoung Hun Lee: Pohang University of Science and Technology
Assa Aravindh Sasikala: University of Oulu
Gun Young Jung: Gwangju Institute of Science and Technology (GIST)
Yusin Pak: Korea Institute of Science and Technology (KIST)

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: Abstract The explosive demand for a wide range of data processing has sparked interest towards a new logic gate platform as the existing electronic logic gates face limitations in accurate and fast computing. Accordingly, optoelectronic logic gates (OELGs) using photodiodes are of significant interest due to their broad bandwidth and fast data transmission, but complex configuration, power consumption, and low reliability issues are still inherent in these systems. Herein, we present a novel all-in-one OELG based on the bipolar spectral photoresponse characteristics of a self-powered perovskite photodetector (SPPD) having a back-to-back p+-i-n-p-p+ diode structure. Five representative logic gates (“AND”, “OR”, “NAND”, “NOR”, and “NOT”) are demonstrated with only a single SPPD via the photocurrent polarity control. For practical applications, we propose a universal OELG platform of integrated 8 × 8 SPPD pixels, demonstrating the 100% accuracy in five logic gate operations irrelevant to current variation between pixels.

Date: 2022
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DOI: 10.1038/s41467-022-28374-w

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