University of Oulu

Kim, W., Kim, H., Yoo, T.J. et al. Perovskite multifunctional logic gates via bipolar photoresponse of single photodetector. Nat Commun 13, 720 (2022).

Perovskite multifunctional logic gates via bipolar photoresponse of single photodetector

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Author: Kim, Woochul1,2; Kim, Hyeonghun2,3; Yoo, Tae Jin4;
Organizations: 1School of Materials Science and Engineering (SMSE), Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
2Sensor System Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
3School of Engineering Technology, Purdue University, West Lafayette, IN, 47907, USA
4Department of Electrical Engineering, Pohang University of Science and Technology, Gyeongbuk, 37673, Republic of Korea
5Electronic Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
6Nano and Molecular Systems Research Unit (NANOMO), University of Oulu, Oulu, 90750, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.3 MB)
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Language: English
Published: Springer Nature, 2022
Publish Date: 2022-06-15


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.

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Series: Nature communications
ISSN: 2041-1723
ISSN-E: 2041-1723
ISSN-L: 2041-1723
Volume: 13
Issue: 1
Article number: 720
DOI: 10.1038/s41467-022-28374-w
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: W.K., G.Y.J., and Y.P. acknowledge the National Research Foundation of Korea (NRF) grant funded by the Korea government (MIST and MOE) (No. NRF-2019R1A2B5B01070640, 2020M3H5A108110412, 2019M3E7A1113097) and the KIST Institutional grant (2E31271). A.A.S. acknowledges the CSC-IT Center for Science (Finland) for the computational resources.
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