DataVXAdvanced Functional MaterialsPaper
journal article·2026-03Open access

Ultrahigh‐Yield, Multifunctional, and High‐Performance Organic Memory for Seamless In‐Sensor Computing Operation

Daeun Kim, Jaehyoung Ko, Namju Kim, Quynh H. Nguyen, Hoyeon Lee, Joohwan Eo, Seongeon Jin, Ji Eon Kwon, Seung‐Yeol Jeon, Youngdo Jeong, Dongseok Kwon, Sung Gap Im, Sanghan Lee, Byung Chul Jang, Yongho Joo

Advanced Functional Materials· Volume 36· Issue 25
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Source abstract

Abstract

Abstract Organic memristors have emerged as leading candidates for “soft” biorealistic systems due to their intrinsic processability, biocompatibility, low power consumption, and low cost. They are highly compatible with wearable and flexible technologies, ultimately enabling seamlessly integrable biorealistic architectures, such as wearable in‐sensor computing systems. However, conventional organic memristors have notoriously been limited by low device yield and reliability, primarily due to the inherent semicrystallinity of mainstream conjugated (macro‐) molecules. In this context, utilizing a nonconjugated radical polymer can dramatically mitigate these issues by leveraging its intrinsic memristivity, amorphous nature, and the molecular tunability of the nonconjugated backbones. This work demonstrates a high‐yield and multifunctional organic memory device and a soft in‐sensor computing architecture based on a radical polymer. Specifically, this study achieves an on/off ratio of >10 6 , state retention of over 4 × 10 5 s, stable switching performance over 500 cycles, and remarkable flexibility, all with a very high yield (>95%) in an organic memristive array. Additionally, the polymer's intrinsic chemical sensitivity is leveraged for application in soft in‐sensor computing. This work presents a radical molecular engineering strategy to enhance the physical properties of organic memristive materials on demand, significantly broadening the scope of organic materials for next‐generation data processing technologies.
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Research context

PolymersBiomaterials

OpenAlex topics: Advanced Memory and Neural Computing · Photochromic and Fluorescence Chemistry · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Functional Composite Materials Research Center Korea Institute of Science and Technology Wanju 55324 Republic of Korea

Department of Materials Science and Engineering Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea

Department of Semiconductor Engineering Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea

School of Electronic and Electrical Engineering Kyungpook National University Daegu 41566 Republic of Korea

Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea

Department of Materials Science and Engineering Seoul National University Seoul 08826 Republic of Korea

Center for Advanced Biomolecular Recognition Biomedical Research Division Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea

Carbon Composite Materials Research Center Korea Institute of Science and Technology Wanju 55324 Republic of Korea

Department of HY‐KIST Bio‐convergence Hanyang University Seoul 04763 Republic of Korea

Division of Nano and Information Technology KIST School Korea University of Science and Technology (UST) Jeonbuk 55324 Republic of Korea

Funding

Korea Institute of Science and Technology · National Research Foundation of Korea · Ministry of Education

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