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Intelligent Memory Computing
Device Laboratory

We are looking for highly motivated M.S./Ph.D. students who have interests in the nanoscale
semiconductor device for memory, logic, and neuromorphic computing application.

Research Topics

  • Memory device and process

    Research Topic 01
  • Neuromorphic device and system for AI

    Research Topic 02
  • Emerging device and AI algorithm for novel applicaiton

    Research Topic 03

Publication

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    2024

    Emerging frontiers in 3D NAND flash memory: material and process innovations

    Ki Han Kim#, Namju Kim#, Yeong Kwon Kim#, Hee Seung Kim, Han Byeol Oh, Chae Eun Kim, Hyeun Woo Shin, Myeong Gi Kim, Won Jun Choi, Byung Chul Jang*, Device [Cell press's sister journal], (Under revision)

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    2024

    A Nonconjugated Radical Polymer Enables Bimodal Memory and In-Sensor Computing Operation

    Jaehyoung Ko, Daeun Kim, Quynh H. Nguyen, Changhyeon Lee, Namju Kim, Byung Chul Jang*, Sung Gap Im*, Yongho Joo*, Science Advances, (Accepted) [IF:11.7]

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    2024

    Dual Synapses from Ternary C60-Pentacene-TiO2-x Nanorods Heterostructures

    Yunchae Jeon#, Gyeongho Lee#, Yeong Jae Kim, Byung Chul Jang*, Hocheon Yoo*, Advanced Functional Materials, (2024) [IF:18.5]

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    2024

    Versatile Papertronics: Photo-induced Synapse and Security Applications on a Papers

    Wangmyung Choi#, Jihyun Shin#, Yeong Jae Kim, Jaehyun Hur, Byung Chul Jang*, Hocheon Yoo*, Advanced Materials, 2312831, (2024) [IF: 27.4]

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    2024

    Low-Power Charge Trap Flash Memory with MoS2 Channel for High-Density In-Memory Computing

    Yeong Kwon Kim#, Sangyong Park#, Junhwan Choi, Hamin Park*, Byung Chul Jang*, Advanced Functional Materials, (2024) [IF:18.5]

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    2024

    Nanoristors: Highly Uniform, Sub-500-Millivolt, Large-Scale, and Robust Molybdenum Disulfide Nanograined Memristor

    Gunhoo Woo#, Hyeong-U Kim#, Byung Chul Jang#, Muhammad Naqi, Seongin Hong, Arindam Bala, Seunghun Kang, Yunseok Kim, Sunkook kim, Taesung Kim, Jae-Joon Kim*, Hocheon Yoo*, Journal of Materials Chemistry C, 12, 6350-6358 (2024) [IF:5.7]

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    2024

    Multi-Dimensional Physically Unclonable Functions: Optoelectronic Variation-Induced Multi-Key Generation from Small Molecule PN Heterostructures

    Jihyun Shin#, Raksan Ko#, Taehyun Park#, Yeong Jae Kim, Byung Chul Jang*, Hocheon Yoo*, Advanced Functional Materials, 34, 2314949 (2024) [IF: 18.5]

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    2024

    Imitating Synapse Behavior: Exploiting Off-Current in TPBi-doped Small Molecules Phototransistors for Broadband Wavelength Recognition

    Seungme Kang, Sunyoung Sohn, Hyeran Kim, Hyung Joong Yun, Byung Chul Jang*, Hocheon Yoo*, ACS Applied Materials&Interfaces, 16, 11758-11766 (2024) [IF:8.3]

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    2024

    Realistic Chest X-ray Image Synthesis via Generative Network with Stochastic Memristor Array for Machine Learning-based Medical Diagnosis

    Namju Kim#, Jungyeop Oh#, Sungkyu Kim#, Jun-Hwe Cha, Junhwan Choi, Sung Gap Im, Sung-Yool Choi*, and Byung Chul Jang*, Advanced Functional Materials, 34, 2305136 (2024) [IF:18.5] [Inside Back Cover]

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    2024

    Strengthening Multi-Factor Authentication through Physically Unclonable Functions in PVDF-HFP-Phase-Dependent a-IGZO Thin-Film Transistors

    Youngmin Han#, Subin Lee#, Eun Kwang Lee#, Hocheon Yoo*, Byung Chul Jang*, Advanced Science, 11, 2309221 (2024) [IF:14.3]

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    2023

    Machine Learning Attacks-Resistant Security by Mixed-Assembled Layers-Inserted Graphene Physically Unclonable Function

    Subin Lee#, Byung Chul Jang#, Minseo Kim#, Si Heon Lim, Eunbee Ko, Hyun Ho Kim*, Hocheon Yoo*, Advanced Science, 10, 2302604 (2023) [IF:14.3] [Frontispiece Cover]

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    2023

    Unpredictably Disordered Distribution of Hetero-blended Graphene Oxide Flakes with non-identical Resistance in Physical Unclonable Functions

    Subin Lee#, Seon Yeon Choi#, Byung Chul Jang#, Dong Hyun Lee#, Joon Young Cho, Joong Tark Han, Hocheon Yoo*, Hyun Ho Kim*, Advanced Functional Materials, 33, 2304432 (2023) [IF:18.5] [Inside Front Cover]

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    2023

    Preventing Vanishing Gradient Problem of Hardware Neuromorphic System by Implementing Imidazole-Based Memristive ReLU Activation Neuron

    Jungyeop Oh#, Sungkyu Kim#, Changhyeon Lee, Jun-Hwe Cha, Sang Yoon Yang, Sung Gap Im, Byung Chul Jang*, and Sung-Yool Choi*, Advanced Materials, 23, 2300023 (2023) [IF:27.4] [Inside Front Cover]

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    2023

    Hardware-Based Security Devices using a Physical Unclonable Function Created by the Irregular Grain Boundaries Found in Perovskite Calcium Titanate

    Subin Lee, Eun Kwang Lee, Byung Chul Jang*, and Hocheon Yoo*, Journal of Alloys and Compounds, 969, 172329 (2023) [IF:5.8]

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    2023

    Double-floating-gate van der Waals transistor for high-precision synaptic operations

    Hoyeon Cho, Donghyun Lee, Kyungmin Ko, Dur-Yuh Lin, Beomsung Park, Byung Chul Jang, Dong-Hyeok Lim, and Joonki Suh, ACS Nano, 17, 7384 - 7393 (2023) [IF:15.8]

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    2023

    Imidazole-based artificial synapses for neuromorphic computing: Cluster-type conductive filament via controllable nanocluster nucleation

    Jungyeop Oh, Sang Yoon Yang, Sungkyu Kim, Changhyeon Lee, Jun-Hwe Cha, Byung Chul Jang, Sung Gap Im, Sung-Yool Choi, Materials Horizons, 10, 2035-2046 (2023) [IF:12.2]

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    2023

    Amorphous ITZO-Based Selector Device for Memristor Crossbar Array

    Ki Han Kim, Min-Jae Seo*, Byung Chul Jang*, Micromachines, 14, 506 (2023) [IF:3.4]

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    2023

    Hardware-Intrinsic Physical Unclonable Functions by Harnessing Nonlinear Conductance Variation in Oxide Semiconductor-Based Diode

    Namju Kim, Seung-Bae Jeon*, Byung Chul Jang*, Nanomaterials, 13, 675 (2023) [IF:5.3]

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    2023

    Graphene Oxide-Based Memristive Logic-in-Memory Circuit Enabling Normally-Off Computing

    Yeongkwon Kim, Seung-Bae Jeon, Byung Chul Jang, Nanomaterials, 13, 710 (2023) [IF:5.3]

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    2023

    Disordered Mixture of Self-Assembled Molecular Functional Groups on Heterointerfaces with p-Si Leads to Multiple Key Generation in Physical Unclonable Functions

    Subin Lee, Hyunho Kim, Juhyung Seo, Byung Chul Jang*, Hocheon Yoo*, ACS Applied Materials & Interfaces, 15, 1693-1703 (2023) [IF:9.5]

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    2022

    Highly reliable synaptic cell array based on organic-inorganic hybrid bilayer stack toward precise offline learning

    Jun-Hwe Cha#, Byung Chul Jang#, Jungyeop Oh, Changhyeon Lee, Sang Yoon Yang, Hamin Park, Sung Gap Im, Sung-Yool Choi, Advanced Intelligent Systems, 4, 2200018 (2022) [IF:7.4] [Front Cover]

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    2022

    Memristor-based Security Primitives Robust to Malicious Attacks for Highly Secure Neuromorphic Systems

    Jungyeop Oh#, Sungkyu Kim#, Junhwan Choi, Jun-Hwe Cha, Sung Gap Im, Byung Chul Jang*, Sung-Yool Choi*, Advanced Intelligent Systems, 4, 2200177 (2022) [IF:7.4]

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    2022

    Non-volatile flash memory based on van der Waals gate stack using bandgap tunability of hexagonal boron nitride

    Byung Chul Jang, Hamin Park, Surfaces and Interfaces, 32, 102179 (2022) [IF:6.2]

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    2022

    Dielectric Surface-Dependent Photogating Phenomenon in C8-BTBT Leading to Broad Spectral Ultraviolet to Near-Infrared Photoresponse and Linearly-Weighted Synaptic Phototransistors

    Jihyun Shin#, Somi Kim#, Byung Chul Jang*, and Hocheon Yoo*, Dyes and Pigments, 208, 110882 (2022) [IF:4.5]

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    2021~

    Flexible Nonvolatile Polymer Memory Array on Plastic Substrate via Initiated Chemical Vapor Deposition

    Byung Chul Jang#, Hyejeong Seong#, Sung Kyu Kim, Jong Yun Kim, Beom Jun Koo, Junhwan Choi, Sang Yoon Yang, Sung Gap Im*, Sung-Yool Choi*, ACS Applied Materials & Interfaces, 8, 12951-12958 (2016) [IF:10.383]

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    2021~

    Conductive-bridging random-access memories for emerging neuromorphic computing

    Jun-Hwe Cha, Sang Yoon Yang, Jungyeop Oh, Shinhyun Choi, Sangsu Park, Byung Chul Jang, Wonbae Ahn, Sung-Yool Choi, Nanoscale, 12, 14301-14930 (2020) [IF:6.307] [Inside Front Cover]

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    2021~

    Bioinspired Polydopamine‐Based Resistive‐Switching Memory on Cotton Fabric for Wearable Neuromorphic Device Applications

    Hagyoul Bae, Daewon Kim, Myungsoo Seo, Ik Kyeong Jin, Seung‐Bae Jeon, Hye Moon Lee, Soo‐Ho Jung, Byung Chul Jang, Gyeongho Son, Kyoungsik Yu, Sung‐Yool Choi, Yang‐Kyu Choi, Advanced Materials Technologies, 4, 1900151 (2019) [IF:8.856]

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    2021~

    Large-Scale, Low-Power Nonvolatile Memory based on Few-Layer MoS2 and Ultrathin Polymer Dielectrics

    Sang Cheol Yang#, Junhwan Choi#, Byung Chul Jang#, Woonggi Hong, Gi Woong Shim, Sang Yoon Yang, Sung Gap Im*, Sung-Yool Choi*, Advanced Electronic Materials, 5, 1800688 (2019) [IF:7.633]

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    2021~

    Polymer Analog Memristive Synapse with Atomic-Scale Conductive Filament for Flexible Neuromorphic Computing System

    Byung Chul Jang#, Sungkyu Kim#, Sang Yoon Yang#, Jihun Park, Junhwan Choi, Sung Gap Im, Vinayak P. Dravid, Sung-Yool Choi, Nano Letters, 19, 839-849 (2019) [IF:12.262]

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    2021~

    A recoverable synapse device using a three-dimensional silicon transistor

    Jae Hur#, Byung Chul Jang#, Jihun Park, Dong-Il Moon, Hagyoul Bae, Jun-Young Park, Gun-Hee Kim, Seung-Bae Jeon, Myungsoo Seo, Sungho Kim, Sung-Yool Choi*, Yang-Kyu Choi*, Advanced Functional Materials, 28, 1804844 (2018) [IF:19.924]

Our News

  • 13

    2024.12

    박사과정 김기한 2024년 첨성인 대학원생 논문 경진대회 장려상 수상

    박사과정 김기한 2024년 첨성인 대학원생 논문 경진대회 장려상 수상

  • 17

    2024.07

    석사과정 김기한 2024년 KNU-EE Research Congress 논문어워드 (Oral Presentation) 우수논문상 수상

    전자전기공학부 장병철교수님 연구실 석사과정 김기한 대학원생이 2024년 KNU-EE Research Congress 논문어워드(Oral Presentation)에서 수여하는 우수논문상을 수상하였다.

  • 09

    2024.04

    박사과정 김남주 제1호 대학원 대통령과학장학생 선정

    과학기술정보통신부(장관 이종호)는 석·박사 이공계 인재의 자긍심을 고취하고 세계 최고 수준의 연구인력으로 성장하는 것을 뒷받침하기 위해 대학원 대통령과학장학생 120명을 최종 선발하고 4월부터 장학금을 즉시 지급한다고 7일 밝혔다. 분야별 선발인원은 신청 접수 인원에 비례 배분하여, 대분류 기준으로 △자연과학 총 19명(석사 9명, 박사 10명) △생명과학…

Research Highlights

  • 2024Realistic Chest X-ray Image Synthesis via Generative Network with Stochastic Memristor Array for Machine Learning-based Medical Diagnosis

    Namju Kim#, Jungyeop Oh#, Sungkyu Kim#, Jun-Hwe Cha, Junhwan Choi, Sung Gap Im, Sung-Yool Choi*, and Byung Chul Jang*, Advanced Functional Materials, 34, 2305136 (2024) [IF:19.0] [Inside Back Cover]

  • 2023Machine Learning Attacks-Resistant Security by Mixed-Assembled Layers-Inserted Graphene Physically Unclonable Function

    Subin Lee#, Byung Chul Jang#, Minseo Kim#, Si Heon Lim, Eunbee Ko, Hyun Ho Kim*, Hocheon Yoo*, Advanced Science, 10, 2302604 (2023) [IF:15.1] [Frontispiece Cover]