Won-Tae Koo's Research

1.      Hydrogen Sensors from Ultra-small Bimetallic Nanoparticle Porous Ion Exchange Polymer Composites

Won-Tae Koo, Yoonseob Kim, Sunwoo Kim, Bong Lim Suh, Suchol Savagatrup, Sung-Ju Lee, Jihan Kim,

Timothy M. Swager,* and Il-Doo Kim*       
Chem 2020, 6, 2746–2758.

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2.      Metal-Organic Frameworks for Chemiresistive Sensors

Won-Tae Koo, Ji-Soo Jang, and Il-Doo Kim*       
Chem 2019, 5, 1938–1963. (Invited Review)

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3.      Heterogeneous Sensitization of Metal-Organic Framework Driven Metal@Metal Oxide Complex  Catalysts on Oxide

Nanofiber Scaffold Toward Superior Gas Sensors

Won-Tae Koo, Seon-Jin Choi, Sang-Joon Kim, Ji-Soo Jang, and Il-Doo Kim*

Journal of the American Chemical Society 2016, 138, 13431–13437.

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​4.      Large-area Synthesis of Nanoscopic Catalyst-Decorated Conductive MOF Film Using Microfluidic-based Solution Shearing

Jin-Oh Kim,† Won-Tae Koo (co-first author),† Hanul Kim, Chungseong Park, Taehoon Lee, Calvin Andreas Hutomo,

Siyoung Choi, Dong Soo Kim, Il-Doo Kim,* and Steve Park*
Nature Communications 2021, 12, 4294. (Selected as Editors’ Highlights)

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5.      Confinement of Ultra-Small Bimetallic Nanoparticles in Conductive Metal-Organic Frameworks via Site-Specific Nucleation

Chungseong Park,† Won-Tae Koo (co-first author),† Sanggyu Chong, Hamin Shin, Yoon Hwa Kim, Hee-Jin Cho,

Ji-Soo Jang, Dong-Ha Kim, Jiyoung Lee, Seyeon Park, Jaehyun Ko, Jihan Kim, and Il-Doo Kim* 
Advanced Materials, 2021, 33, 2101216. (Back Cover-Featured)

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6.      Accelerating Palladium Nanowire H2 Sensors Using Engineered Nanofiltration

Won-Tae Koo, Shaopeng Qiao, Alana F. Ogata, Gaurav Jha, Ji–Soo Jang, Vivian Chen, Il–Doo Kim*, and Reginald M. Penner*

ACS Nano 2017, 11, 9276–9285. (Front Cover-Featured)

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7.      Hydrogen Sensors Based on MoS2 Hollow Architectures Assembled by Pickering Emulsion

Chan Ho Park,† Won-Tae Koo (co-first author),† Young Jun Lee, Yoon-Hwa Kim, Jiyoung Lee, Ji-Soo Jang,

Il-Doo Kim,* and Bumjoon J. Kim*       
ACS Nano 2020, 14, 9652–9661. 

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8.      Chemiresistive Hydrogen Sensors: Fundamentals, Recent Advances, and Challenges

Won-Tae Koo, Hee-Jin Cho, Dong-Ha Kim, Yoon-Hwa Kim, Hamin Shin, Reginald M. Penner,* and Il-Doo Kim*    

ACS Nano 2020, 14, 14284–14322. (Invited Review)

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9.     The Design and Science of Polyelemental NPs

Won-Tae Koo, Jill E. Millstone, Paul. S. Weiss, and Il-Doo Kim*       
ACS Nano 2020, 14, 6407–6413. (Perspective)

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10.    Catalytic Metal Nanoparticles Embedded in Conductive Metal-Organic Frameworks for Chemiresistors:

Highly Active and Conductive Porous Materials

Won-Tae Koo, Sang-Joon Kim, Ji-Soo Jang, Dong-Ha Kim, and Il–Doo Kim*        
Advanced Science 2019, 6, 201900250.

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11.    Few-Layered WS2 Confined in Co, N-Doped Hollow Carbon Nanocages: Abundant WS2 Edges

for Highly Sensitive NO2 Sensing

 Won-Tae Koo, Jun-Hwi Cha, Ji-Won Jung, Seon-Jin Choi, Ji-Soo Jang, Dong-Ha Kim, and Il–Doo Kim*         

Advanced Functional Materials 2018, 28, 1802575. (Frontispiece-Featured)

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12.     Surface Hydration of Electrospun Nanofibers using Water-Absorbing Metal–Organic Frameworks

          for Ultrafine Particulate Matter Removal 

Won-Tae Koo (co-first author),† Youngsun Hong,† Daeha Joung, and Chanhoon Kim*

Chemical Engineering Journal 2022, 446, 136710. 

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13.    Porous Ion Exchange Polymer Matrix for Ultra-Small Au Nanoparticles-Decorated Carbon Nanotube Chemiresistors

Won-Tae Koo, Yoonseob Kim, Suchol Savagatrup, Bora Yoon, Intak Jeon, Seon-Jin Choi, Il-Doo Kim,* and Timothy M. Swager*

Chemistry of Materials 2019, 31, 5413–5420. 

 

14.    MOF Derived ZnCo2O4 Porous Hollow Spheres Functionalized with Ag Nanoparticles for a Long-Cycle

and High-Capacity Lithium Ion Battery Anode

Won-Tae Koo (co-first author),† Hye-Yeon Jang,† Chanhoon Kim, Ji-Won Jung, Jun Young Cheong, and Il–Doo Kim*

Journal of Materials Chemistry A 2017, 5, 22717–22725.

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15.    Feasible Defect Engineering by Employing MOF Templates into One-Dimensional Metal Oxides for Battery Applications

Jun Young Cheong,† Won-Tae Koo (co-first author),† Chanhoon Kim, Ji-Won Jung, and Il–Doo Kim*
ACS Applied Materials & Interfaces 2018, 10, 20540-20549.

 

16.    Hierarchical Metal-Organic Framework Assembled Membrane Filter for Efficient Removal of  Particulate Matter

Won-Tae Koo, Ji-Soo Jang, Shaopeng Qiao, Wontae Hwang, Gaurav Jha, Reginald M. Penner, and Il-Doo Kim*
ACS Applied Materials & Interfaces 2018, 10, 19957-19963.

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17.    Metal-Organic Framework Templated Catalysts: Dual Sensitization of PdO-ZnO Composite on Hollow SnO2 Nanotubes

for Selective Acetone Sensors

Won-Tae Koo, Ji-Soo Jang, Seon-Jin Choi, Hee-Jin Cho, and Il-Doo Kim*
ACS Applied Materials & Interfaces 2017, 9, 18069-18077.

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18.    Nanoscale PdO Catalyst Functionalized Co3O4 Hollow Nanocages using ZIF-67 Templates for Selective Detection

of Acetone Molecules in Exhaled Breath

Won-Tae Koo, Sunmoon Yu, Seon-Jin Choi, Ji-Soo Jang, Jun Young Cheong, and Il-Doo Kim*

ACS Applied Materials & Interfaces 2017, 9, 8201-8210.

 

19.    Metal-Organic Framework Templated Synthesis of Ultrasmall Catalyst Loaded ZnO/ZnCo2O4 Hollow Spheres

for Enhanced Gas Sensing Properties

Won-Tae Koo, Seon-Jin Choi, Ji-Soo Jang and Il-Doo Kim*

Scientific Reports 2017, 7, 45074.

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20.    Catalyst-Decorated Hollow WO3 Nanotubes Using Layer-by-Layer Self-Assembly on  Polymeric Nanofiber Templates

and Their Application in Exhaled Breath Sensor

Won-Tae Koo, Seon-Jin Choi, Nam-Hoon Kim, Ji-Soo Jang, and Il-Doo Kim*

Sensors and Actuators B: Chemical 2016, 223, 301–310.

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21.    Nanoscopic Catalyst-loaded Porous Metal Oxide Hollow Frameworks using Porous Block Copolymer Templates
         for High Performance Formaldehyde Sensors

Won-Tae Koo (co-first author),† Sungyoon Woo,† Euichul Shin, Juyoung Lee, Hyunji Lee, Kang Hee Ku,* Sang-Joon Kim,*
and Il-Doo Kim*

Sensors and Actuators B: Chemical 2024, 418, 136282. 

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​​​Selected Publications (Major Semiconductor Conferences)

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1.      Analog Computation in Ultra-High Density 3D FeNAND for TB-level Hyperscale AI Models

Jae-Gil Lee,† Won-Tae Koo (co-first author),† Geonhui Lee, Jihun Kim, Woocheol Lee, Hyung Dong Lee, Sunghyun Yoon, Sung-In Hong, In-Ku Kang, Joongsik Kim, Hyejung Choi, Soo Gil Kim, Seho Lee, Jaeyun Yi, and Seon Yong Cha

2024 IEEE IEDM

San Francisco, USA, Dec. 2024

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2.      A Holistic Methodology Toward Large-scale AI Implementation using Realistic ReRAM based ACiM

Sangsu Park, Jihun Kim, Won-Tae Koo, Youngjae Kwon, Dong Ik Suh, Seho Lee, K Kim, E Han, J Lee, Youngwoo Lim, Youngbae Ahn, Eunkyung Park, Seungwook Ryu, S Kim, N Park, Hoseok Em, Seokjoon Kang, Junho Cheon, Euiseok Kim, Jaeyun Yi, Taehun Kim, Myung-Hee Na, and Seon Yong Cha

2023 IEEE IEDM

San Francisco, USA, Dec. 2023

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3.      Improvement of MAC Accuracy using Oxygen Diffusion Barriers in Resistive Synaptic Cell Arrays

Youngjae Kwon,† Won-Tae Koo (co-first author),†  Sangsu Park, Dong Ik Suh, Gunhee Lee, Hyung Dong Lee, Youngbae Ahn, Dohee Kim, Seungwook Ryu, Hoseok Em, Seokjoon Kang, Chang Won Jeong, Junho Cheon, Hyejung Choi, Soo Gil Kim, Seho Lee, Jaeyun Yi, and Seon Yong Cha

2024 IEEE IMW

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4.      Modeling and Demonstration for Multi-level Weight Conductance in Computational FeFET Memory Cell

Won-Tae Koo, Jae-Gil Lee, Gunhee Lee, Woocheol Lee, Jungwook Woo, Dong Ik Suh, Joongsik Kim, Hyung Dong Lee, Seho Lee, Jaeyun Yi, and Seon Yong Cha

2024 IEEE IMW

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​5.      Demonstration of Ultra-thin FE/DE and AFE/DE Bilayers for Future DRAM Cell Capacitors 

Dong Ik Suh,† Won-Tae Koo (co-first author),† Sungyoon Woo, Youngmo Kim, Ja-Yong Kim, Seung Wook Ryu, Heeyoung Jeon, Ki Vin Im, Gwangyeob Lee, Taeone Youn, Hyeonho Jeong, Seho Lee, Myung-Hee Na, and Seon Yong Cha

2023 IEEE EDTM

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