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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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    2025

    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, e16603 (2025) [IF:19.0]

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    2025

    Real-time Security Key Generation : Advanced Optical Physical Unclonable Functions based on Förster Resonant Energy Transfer in Multi-Color Quantum Dots on Nanopatterned Films

    Kisu Kim, Yuhyun Moon, Yeong Kwon Kim, Sangho Shin, J. Cheng Bi, Joo Yun Jung, Byung Chul Jang*, Byeong-Kwon Ju*, Communications Materials, (Accepted) [IF:9.6]

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    2025

    A Van der Waals Optoelectronic Synapse with Tunable Positive and Negative Post-Synaptic Current for Highly Accurate Spiking Neural Networks

    Hyejin Yoon#, Soeun Park#, Yeong Kwon Kim#, Juhwan Baek, Ki Han Kim, Jeongeun Choi, Seongil Yun, Hyeonchang Son, Jeongeun Choi, Byung Chul Jang*, Dong-Ho Kang*, Advanced Functional Materials, e19498, (2025) [IF:19.0]

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    2025

    Reconfigurable Neuron and Synapse Operations in a Steep-Switching Nonvolatile Transistor

    Jongmin Noh#, Young Kwon Kim#, Seongkweon Kang, Sang-Min Lee, Byung Chul Jang*, Sungjoo Lee*, Small, 21, e05649 (2025) [IF:12.1]

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    2025

    Machine Learning-Assisted Analysis on Dummy Hole-Less String Select Line Transistor for High-Density 3D NAND Flash

    Hee Seung Kim#, Han Byeol Oh, Suk-Kang Sung, Byung Chul Jang*, IEEE Transactions on Eelectron Devices, (In preparation) (2025) [IF:2.9]

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    2025

    Recessed Source/Drain structure for Scalable High-Voltage Pass Transistor in 3D NAND Flash memory

    Chae Eun Kim#, Namju Kim#, Suk-Kang Sung, Byung Chul Jang*, IEEE Transactions on Eelectron Devices, (In preparation) (2025) [IF:2.9]

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    2025

    Investigation of Buried Channel Array Transistor for High-Voltage Pass Transistor in 3D NAND Flash memory

    Hyeun Woo Shin#, Namju Kim#, Suk-Kang Sung, Byung Chul Jang*, IEEE Transactions on Eelectron Devices, (In preparation) (2025) [IF:2.9]

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    2025

    More-than-Moore approaches implemented using the unique properties of van der Waals heterostructures

    Sangmin Lee#, Yeong Kwon Kim#, Byung Chul Jang*, Sungjoo Lee*, ACS Nano, 19, 29028−29048 (2025) [IF:16.0]

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    2025

    Modeling of Conductive Filament Behaviors According to Inorganic Concentration Changes in Hybrid Polymeric Ultra-Thin Films

    Ji In Kim#, Yeong Kwon Kim#, Byung Chul Jang*, Min Ju Kim*, ACS Applied Electronic Materials, 7, 5451-5462 (2025) [IF:4.4]

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    2025

    Steep-Slope CuInP2S6 Ferroionic Threshold Switching Field-Effect Transistor for Implementation of Artificial Spiking Neuron

    Sungpyo Baek#, Young Kwon Kim#, HaeJu Choi, Sang-Min Lee, Byung Chul Jang*, and Sungjoo Lee*, Advanced Materials, 37, e06921 (2025) [IF:26.8]

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    2025

    MoS2 Channel-Enhanced High-Density Charge Trap Flash Memory and Machine Learning-Assisted Sensing Methodologies for Memory-Centric Computing Systems

    Ki Han Kim#, Ju Han Park#, Khang June Lee#, Ji-Won Seo, Yeong Kwon Kim, Junhwan Choi, Min-Jae Seo*, and Byung Chul Jang*, Advanced Science, 12, e01926 (2025) [IF:14.3]

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    2025

    Quantized-memristor-enabled generative AI for predictive skin laser treatment imaging

    Namju Kim#, Jun-Hwe Cha#, Yeong Kwon Kim#, Inyong Kim, Minkyu Jeong, Junhwan Choi, and Byung Chul Jang*, Device [Cell press's sister journal], 3, 100908 (2025)

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    2025

    Ultrafast and Universal Synthetic Route for Nanostructured Transition Metal Oxides Directly Grown on Substrates

    Si Heon Lim, Geunwoo Kim, Sungjin Cho, Yeong Kwon Kim, Eun Bee Ko, Seon Yeon Choi, Jung A Heo, Daegun Kim, Hocheon Yoo, So‐Yeon Lee, YongJoo Kim, Pil‐Ryung Cha, Dong Yun Lee, Sunghun Lee, Byung Chul Jang, Yeonhoo Kim, Hyun Ho Kim*, Advanced Materials, 37, 2418407, (2025) [IF:26.8]

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    2025

    Rolling the dice with light competition: Introducing a true random number generator powered by photo-induced polarity current

    Taehyun Park#, Juhyung Seo#, Namju Kim#, Chaehyun Kim#, Yeong Jae Kim, Hyeonghun Kim, Hyun Ho Kim, Seyong Oh, Dong Chan Kim, Donghee Son, Jaehyun Hur*, Young-Joon Kim*, Byung Chul Jang*, Hocheon Yoo*, Advanced Materials, 37, 2419579, (2025) [IF:26.8] [Inside Front Cover]

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    2025

    Material engineering to enhance reliability in 3D NAND flash memory

    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], 3, 100682 (2025)

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    2025

    Spiking neural network integrated with impact ionization field-effect transistor neuron and a ferroelectric field-effect transistor synapse

    Haeju Choi, Sungpyo Baek, Hanggyo Jung, Taeho Kang, Sangmin Lee, Jongwook Jeon, Byung Chul Jang*, Sungjoo Lee*, Advanced Materials, 37, 2406970 (2025) [IF:26.8]

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    2024

    Enhancing Computing Capacity via Reconfigurable MoS2-Based Artificial Synapse with Dual Feature Strategy for Wide Reservoir Computing

    Hyeonji Lee#, Jungyeop Oh#, Wonbae Ahn, Mingu Kang, Seohak Park, Hyunmin Kim, Seungsun Yoo, Byung Chul Jang, Sung-Yool Choi, Advanced Functional Materials, 35, 2416811, (2024) [IF:18.5]

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    2024

    Random Number Generators and Spiking Neurons from Metal Oxide/Small Molecules Heterojunction N-shape Switching Transistors

    Juhyung Seo#, Seungme Kang#, Divake Kumar#, Wonjun Shin#, Jinill Cho, Taesung Kim, Yeongkwon Kim, Byung Chul Jang, Amit R. Trivedi, Hocheon Yoo, Advanced Functional Materials, 35, 2411348, (2024) [IF:18.5]

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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, 10, eadp0778 (2024) [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, 34, 24095780(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, 36, 2312831 (2024) [IF: 27.4] [Inside Front Cover]

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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, 36, 2405670 (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]

Our News

  • 10

    2025.11

    박사과정 김기한 (지도교수 장병철), SK하이닉스 박사과정 산학장학생 선발 (이천 미래기술연구원 소자 직무)

    축하합니다! 박사과정생 김기한(지도교수 장병철)은 25년 채용연계형 박사 산학장학생 프로그램에 선발되었다. 김기한 학생은 박사과정 학위 취득 후 SK하이닉스 이천 미래기술연구원의 소자 연구직으로 입사할 예정입니다. 남은 기간 동안 열심히 연구를 수행하여, 회사에 기여하기를 바랍니다.

  • 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.

Research Highlights

  • 2025Understanding of Incremental Step Pulse Programming (ISPP) Slope Degradation in 3D NAND and its Band-Engineered Trap Layer Solution

    Ki Han Kim, Woo Cheol Shin, Ui Do Ji, Yeong Kwon Kim, Namju Kim, Han Byeol Oh, Sang Hyun Oh, and Byung Chul Jang*, IEEE International Reliability Physics Symposium (IRPS), Monterey, USA, (2025)

  • 2025Material engineering to enhance reliability in 3D NAND flash memory

    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], 3, 100682, (2025)