Ryun‐Han Koo

768 total citations
69 papers, 478 citations indexed

About

Ryun‐Han Koo is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Biomedical Engineering. According to data from OpenAlex, Ryun‐Han Koo has authored 69 papers receiving a total of 478 indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Electrical and Electronic Engineering, 16 papers in Materials Chemistry and 11 papers in Biomedical Engineering. Recurrent topics in Ryun‐Han Koo's work include Ferroelectric and Negative Capacitance Devices (41 papers), Advanced Memory and Neural Computing (39 papers) and Semiconductor materials and devices (31 papers). Ryun‐Han Koo is often cited by papers focused on Ferroelectric and Negative Capacitance Devices (41 papers), Advanced Memory and Neural Computing (39 papers) and Semiconductor materials and devices (31 papers). Ryun‐Han Koo collaborates with scholars based in South Korea, United States and Puerto Rico. Ryun‐Han Koo's co-authors include Wonjun Shin, Jong‐Ho Lee, Dongseok Kwon, Jae‐Joon Kim, Daewoong Kwon, Jong‐Ho Bae, Kyung Kyu Min, Gyuweon Jung, Daewoong Kwon and Jangsaeng Kim and has published in prestigious journals such as Advanced Materials, Nature Communications and SHILAP Revista de lepidopterología.

In The Last Decade

Ryun‐Han Koo

62 papers receiving 474 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ryun‐Han Koo South Korea 14 431 106 66 52 45 69 478
Daewoong Kwon South Korea 14 499 1.2× 188 1.8× 35 0.5× 41 0.8× 39 0.9× 34 526
Hangyu Xu China 9 426 1.0× 235 2.2× 83 1.3× 73 1.4× 80 1.8× 25 542
Colin O’Callaghan Ireland 7 266 0.6× 136 1.3× 113 1.7× 40 0.8× 63 1.4× 7 358
Kyung Kyu Min South Korea 14 483 1.1× 105 1.0× 27 0.4× 54 1.0× 107 2.4× 36 519
Evgeny Pikhay Israel 10 380 0.9× 41 0.4× 77 1.2× 50 1.0× 79 1.8× 42 439
Min‐Cheng Chen Taiwan 14 805 1.9× 258 2.4× 99 1.5× 46 0.9× 45 1.0× 34 850
Meiyu He China 9 350 0.8× 126 1.2× 71 1.1× 58 1.1× 94 2.1× 18 405
Jiahao Yin China 13 333 0.8× 107 1.0× 33 0.5× 29 0.6× 41 0.9× 48 390
Jong-Ho Lee South Korea 12 410 1.0× 154 1.5× 59 0.9× 14 0.3× 30 0.7× 32 476

Countries citing papers authored by Ryun‐Han Koo

Since Specialization
Citations

This map shows the geographic impact of Ryun‐Han Koo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryun‐Han Koo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryun‐Han Koo more than expected).

Fields of papers citing papers by Ryun‐Han Koo

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryun‐Han Koo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryun‐Han Koo. The network helps show where Ryun‐Han Koo may publish in the future.

Co-authorship network of co-authors of Ryun‐Han Koo

This figure shows the co-authorship network connecting the top 25 collaborators of Ryun‐Han Koo. A scholar is included among the top collaborators of Ryun‐Han Koo based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryun‐Han Koo. Ryun‐Han Koo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Park, Eun Chan, Jangsaeng Kim, Jonghyun Ko, et al.. (2025). Hafnia-based ferroelectric computer vision system with artificial synaptic array. Nano Energy. 139. 110877–110877. 2 indexed citations
2.
Song, Min, Ryun‐Han Koo, Jangsaeng Kim, et al.. (2025). Ferroelectric NAND for efficient hardware bayesian neural networks. Nature Communications. 16(1). 6879–6879. 1 indexed citations
3.
Koo, Ryun‐Han, et al.. (2025). Observation of 1/f4 Noise in Organic Bilayer Ambipolar FETs and Proposition of Defect Engineering Method for Ultimate Noise Control. Advanced Electronic Materials. 11(11). 1 indexed citations
4.
Ko, Jonghyun, Jangsaeng Kim, Wonjun Shin, et al.. (2025). CMOS-compatible flash-gated thyristor–based neuromorphic module with small area and low energy consumption for in-memory computing. Science Advances. 11(29). eadt8227–eadt8227. 1 indexed citations
5.
6.
Shin, Wonjun, Ryun‐Han Koo, Seongbin Hong, et al.. (2024). Proposition of optimal self-curing method in horizontal-floating gate FET-type gas sensors for reliability improvement. Sensors and Actuators B Chemical. 405. 135247–135247. 2 indexed citations
7.
Koo, Ryun‐Han, et al.. (2024). Stochastic behavior of random telegraph noise in ferroelectric devices: Impact of downscaling and mitigation strategies for neuromorphic applications. Chaos Solitons & Fractals. 191. 115856–115856. 6 indexed citations
8.
Kim, Jangsaeng, Eun Chan Park, Wonjun Shin, et al.. (2024). All‐Ferroelectric Spiking Neural Networks via Morphotropic Phase Boundary Neurons. Advanced Science. 11(44). e2407870–e2407870. 2 indexed citations
9.
Ko, Jonghyun, Dongseok Kwon, Jeonghyun Kim, et al.. (2024). SNNSim: Investigation and Optimization of Large‐Scale Analog Spiking Neural Networks Based on Flash Memory Devices. SHILAP Revista de lepidopterología. 6(4). 2 indexed citations
10.
Kim, Jangsaeng, Minkyu Park, Ryun‐Han Koo, et al.. (2024). Vertical AND-Type Flash TFT Array Capable of Accurate Vector-Matrix Multiplication Operations for Hardware Neural Networks. IEEE Electron Device Letters. 45(7). 1385–1388. 2 indexed citations
11.
Kim, Jangsaeng, et al.. (2024). Effects of Charge Imbalance on Field‐Induced Instability of HfO2‐Based Ferroelectric Tunnel Junctions. Advanced Electronic Materials. 11(2). 3 indexed citations
12.
Shin, Wonjun, et al.. (2024). Low-frequency noise of MoTe2 transistor: effects on ambipolar carrier transport and CYTOP doping. SHILAP Revista de lepidopterología. 19(1). 185–185. 2 indexed citations
13.
Shin, Wonjun, et al.. (2024). Robust 1/f Noise Unaffected by Program/Erase Cycling-Induced Damage in Ferroelectric Schottky Barrier FETs. IEEE Electron Device Letters. 45(9). 1645–1648. 3 indexed citations
14.
Jung, Gyuweon, Wonjun Shin, Ryun‐Han Koo, et al.. (2024). Chemisorption Manipulation by Adjusting the Carrier Concentration of the Adsorbent and Its Application to Adsorbate Identification. ACS Materials Letters. 6(10). 4783–4790. 1 indexed citations
15.
Kim, Jangsaeng, Eun Chan Park, Ryun‐Han Koo, et al.. (2024). Analog reservoir computing via ferroelectric mixed phase boundary transistors. Nature Communications. 15(1). 9147–9147. 23 indexed citations
16.
Kim, Sangwoo, Ryun‐Han Koo, Jangsaeng Kim, et al.. (2024). A New Back‐End‐Of‐Line Ferroelectric Field‐Effect Transistor Platform via Laser Processing. Small. 21(15). e2406376–e2406376. 5 indexed citations
17.
Shin, Wonjun, Gyuweon Jung, Sungho Park, et al.. (2023). In‐Memory‐Computed Low‐Frequency Noise Spectroscopy for Selective Gas Detection Using a Reducible Metal Oxide. Advanced Science. 10(7). e2205725–e2205725. 13 indexed citations
18.
Shin, Wonjun, Ji Ye Lee, Ryun‐Han Koo, et al.. (2023). Unveiled Influence of Sub‐gap Density of States on Low‐Frequency Noise in Si‐Doped ZnSnO TFTs: Does Correlated Mobility Fluctuation Model Suffice?. Advanced Electronic Materials. 10(2). 14 indexed citations
19.
Shin, Wonjun, Ryun‐Han Koo, Dongseok Kwon, et al.. (2023). Self‐Curable Synaptic Ferroelectric FET Arrays for Neuromorphic Convolutional Neural Network. Advanced Science. 10(15). e2207661–e2207661. 36 indexed citations
20.
Shin, Wonjun, Kyung Kyu Min, Jong‐Ho Bae, et al.. (2023). 1/f Noise in Synaptic Ferroelectric Tunnel Junction: Impact on Convolutional Neural Network. SHILAP Revista de lepidopterología. 5(6). 18 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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